./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.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_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/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_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/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_b38669fe-5aed-4f2a-8cef-dbcf2a516582/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 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:47:33,654 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:47:33,724 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:47:33,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:47:33,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:47:33,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:47:33,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:47:33,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:47:33,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:47:33,771 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:47:33,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:47:33,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:47:33,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:47:33,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:47:33,772 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:47:33,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:47:33,772 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:47:33,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:47:33,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:47:33,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:47:33,775 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:47:33,775 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:47:33,775 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:47:33,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:47:33,776 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:47:33,776 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:47:33,776 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:47:33,776 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:47:33,776 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:47:33,776 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:47:33,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:33,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:33,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:33,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:33,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:47:33,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:33,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:33,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:33,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:33,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:47:33,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:47:33,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:47:33,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:47:33,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:47:33,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:47:33,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:47:33,778 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:47:33,778 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_b38669fe-5aed-4f2a-8cef-dbcf2a516582/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 -> 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c [2024-11-28 04:47:34,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:47:34,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:47:34,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:47:34,186 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:47:34,187 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:47:34,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2024-11-28 04:47:37,362 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/data/19fb54278/73b39cd6a8904ddf93932da70497ec81/FLAGc314a5409 [2024-11-28 04:47:37,854 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:47:37,855 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2024-11-28 04:47:37,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/data/19fb54278/73b39cd6a8904ddf93932da70497ec81/FLAGc314a5409 [2024-11-28 04:47:37,916 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/data/19fb54278/73b39cd6a8904ddf93932da70497ec81 [2024-11-28 04:47:37,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:47:37,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:47:37,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:37,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:47:37,931 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:47:37,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:37" (1/1) ... [2024-11-28 04:47:37,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e60651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:37, skipping insertion in model container [2024-11-28 04:47:37,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:37" (1/1) ... [2024-11-28 04:47:38,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:47:38,552 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 04:47:38,591 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 04:47:38,598 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 04:47:38,612 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 04:47:38,620 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 04:47:38,664 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 04:47:38,666 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 04:47:38,670 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 04:47:38,679 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 04:47:38,701 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 04:47:38,703 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 04:47:38,707 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 04:47:38,709 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 04:47:38,710 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 04:47:38,711 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 04:47:38,720 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 04:47:38,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:38,758 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 04:47:38,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c98288e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:38, skipping insertion in model container [2024-11-28 04:47:38,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:38,762 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 04:47:38,764 INFO L158 Benchmark]: Toolchain (without parser) took 841.97ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 68.7MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:47:38,765 INFO L158 Benchmark]: CDTParser took 2.12ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 72.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:47:38,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 837.05ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 68.7MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:47:38,767 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.12ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 72.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 837.05ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 68.7MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/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_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/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_b38669fe-5aed-4f2a-8cef-dbcf2a516582/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 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:47:41,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:47:41,783 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 04:47:41,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:47:41,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:47:41,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:47:41,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:47:41,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:47:41,833 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:47:41,833 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:47:41,833 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:47:41,833 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:47:41,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:47:41,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:47:41,834 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:47:41,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:47:41,834 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:47:41,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:47:41,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:47:41,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:47:41,838 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:47:41,838 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:47:41,839 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:47:41,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:47:41,840 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:47:41,840 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:47:41,840 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:47:41,840 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:47:41,841 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:47:41,841 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:47:41,841 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:47:41,841 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:47:41,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:41,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:41,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:41,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:41,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:47:41,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:41,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:41,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:41,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:41,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:47:41,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:47:41,842 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:47:41,842 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:47:41,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:47:41,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:47:41,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:47:41,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:47:41,843 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_b38669fe-5aed-4f2a-8cef-dbcf2a516582/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 -> 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c [2024-11-28 04:47:42,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:47:42,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:47:42,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:47:42,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:47:42,251 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:47:42,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2024-11-28 04:47:45,490 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/data/947720510/a8a23bbaee8c484881d7908fa8dae842/FLAG09f8f5433 [2024-11-28 04:47:46,000 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:47:46,001 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2024-11-28 04:47:46,022 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/data/947720510/a8a23bbaee8c484881d7908fa8dae842/FLAG09f8f5433 [2024-11-28 04:47:46,047 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/data/947720510/a8a23bbaee8c484881d7908fa8dae842 [2024-11-28 04:47:46,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:47:46,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:47:46,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:46,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:47:46,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:47:46,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:46" (1/1) ... [2024-11-28 04:47:46,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f06ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:46, skipping insertion in model container [2024-11-28 04:47:46,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:46" (1/1) ... [2024-11-28 04:47:46,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:47:46,820 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 04:47:46,877 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 04:47:46,882 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 04:47:46,892 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 04:47:46,909 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 04:47:46,950 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 04:47:46,954 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 04:47:46,958 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 04:47:46,966 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 04:47:46,981 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 04:47:46,983 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 04:47:46,986 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 04:47:46,988 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 04:47:46,990 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 04:47:46,991 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 04:47:46,997 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 04:47:47,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:47,030 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 04:47:47,051 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:47:47,107 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 04:47:47,131 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 04:47:47,135 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 04:47:47,138 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 04:47:47,146 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 04:47:47,179 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 04:47:47,182 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 04:47:47,186 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 04:47:47,193 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 04:47:47,206 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 04:47:47,207 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 04:47:47,210 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 04:47:47,212 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 04:47:47,213 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 04:47:47,214 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 04:47:47,219 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 04:47:47,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:47,229 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:47:47,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:47,513 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:47:47,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47 WrapperNode [2024-11-28 04:47:47,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:47,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:47,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:47:47,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:47:47,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:47,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:47,686 INFO L138 Inliner]: procedures = 179, calls = 387, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1312 [2024-11-28 04:47:47,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:47,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:47:47,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:47:47,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:47:47,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:47,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:47,713 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:47,922 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [2, 355]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 90 writes are split as follows [0, 90]. [2024-11-28 04:47:47,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:47,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:48,012 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:48,015 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:48,026 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:48,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:48,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:48,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:47:48,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:47:48,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:47:48,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:47:48,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (1/1) ... [2024-11-28 04:47:48,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:48,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:48,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:47:48,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:47:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 04:47:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 04:47:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:47:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:47:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:47:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:47:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 04:47:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 04:47:48,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 04:47:48,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 04:47:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:47:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:47:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:47:48,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:47:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:47:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:47:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:47:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:47:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:47:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:47:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:47:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:47:48,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:47:48,510 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:47:48,513 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:47:48,516 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:47:48,595 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:47:55,867 INFO L? ?]: Removed 1546 outVars from TransFormulas that were not future-live. [2024-11-28 04:47:55,868 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:47:55,926 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:47:55,926 INFO L312 CfgBuilder]: Removed 39 assume(true) statements. [2024-11-28 04:47:55,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:55 BoogieIcfgContainer [2024-11-28 04:47:55,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:47:55,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:47:55,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:47:55,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:47:55,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:47:46" (1/3) ... [2024-11-28 04:47:55,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489a2e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:55, skipping insertion in model container [2024-11-28 04:47:55,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:47" (2/3) ... [2024-11-28 04:47:55,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489a2e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:55, skipping insertion in model container [2024-11-28 04:47:55,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:55" (3/3) ... [2024-11-28 04:47:55,942 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test4-2.i [2024-11-28 04:47:55,959 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:47:55,961 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test4-2.i that has 4 procedures, 1456 locations, 1 initial locations, 41 loop locations, and 733 error locations. [2024-11-28 04:47:56,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:47:56,070 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;@6d36b84f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:47:56,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 733 error locations. [2024-11-28 04:47:56,082 INFO L276 IsEmpty]: Start isEmpty. Operand has 1451 states, 705 states have (on average 2.2411347517730498) internal successors, (1580), 1442 states have internal predecessors, (1580), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:47:56,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 04:47:56,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:56,091 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:47:56,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:47:56,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:56,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1476650634, now seen corresponding path program 1 times [2024-11-28 04:47:56,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:47:56,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000235812] [2024-11-28 04:47:56,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:56,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:56,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:56,120 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:56,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:47:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:56,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:47:56,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:56,389 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 04:47:56,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:56,390 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:56,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000235812] [2024-11-28 04:47:56,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000235812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:56,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:56,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:47:56,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331436914] [2024-11-28 04:47:56,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:56,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:47:56,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:56,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:47:56,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:47:56,438 INFO L87 Difference]: Start difference. First operand has 1451 states, 705 states have (on average 2.2411347517730498) internal successors, (1580), 1442 states have internal predecessors, (1580), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:47:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:56,545 INFO L93 Difference]: Finished difference Result 1432 states and 1515 transitions. [2024-11-28 04:47:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:47:56,547 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-28 04:47:56,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:56,566 INFO L225 Difference]: With dead ends: 1432 [2024-11-28 04:47:56,566 INFO L226 Difference]: Without dead ends: 1430 [2024-11-28 04:47:56,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:47:56,572 INFO L435 NwaCegarLoop]: 1515 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:56,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:47:56,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2024-11-28 04:47:56,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1430. [2024-11-28 04:47:56,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 695 states have (on average 2.130935251798561) internal successors, (1481), 1421 states have internal predecessors, (1481), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:47:56,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1513 transitions. [2024-11-28 04:47:56,692 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1513 transitions. Word has length 6 [2024-11-28 04:47:56,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:56,692 INFO L471 AbstractCegarLoop]: Abstraction has 1430 states and 1513 transitions. [2024-11-28 04:47:56,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:47:56,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1513 transitions. [2024-11-28 04:47:56,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 04:47:56,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:56,693 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:47:56,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:47:56,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:56,897 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:47:56,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:56,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1422103338, now seen corresponding path program 1 times [2024-11-28 04:47:56,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:47:56,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [567667607] [2024-11-28 04:47:56,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:56,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:56,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:56,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:56,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:47:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:57,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:47:57,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:57,128 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 04:47:57,154 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 04:47:57,154 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:57,154 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:57,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567667607] [2024-11-28 04:47:57,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567667607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:57,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:57,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:47:57,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532135928] [2024-11-28 04:47:57,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:57,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:57,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:57,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:57,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:57,157 INFO L87 Difference]: Start difference. First operand 1430 states and 1513 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:00,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:00,392 INFO L93 Difference]: Finished difference Result 1339 states and 1423 transitions. [2024-11-28 04:48:00,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:48:00,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-28 04:48:00,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:00,399 INFO L225 Difference]: With dead ends: 1339 [2024-11-28 04:48:00,399 INFO L226 Difference]: Without dead ends: 1339 [2024-11-28 04:48:00,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 04:48:00,400 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 1043 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:00,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 925 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 04:48:00,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2024-11-28 04:48:00,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1336. [2024-11-28 04:48:00,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 695 states have (on average 1.9956834532374101) internal successors, (1387), 1327 states have internal predecessors, (1387), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:48:00,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1419 transitions. [2024-11-28 04:48:00,453 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1419 transitions. Word has length 6 [2024-11-28 04:48:00,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:00,453 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1419 transitions. [2024-11-28 04:48:00,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:00,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1419 transitions. [2024-11-28 04:48:00,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 04:48:00,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:00,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:48:00,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:48:00,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:00,658 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:00,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:00,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1422103339, now seen corresponding path program 1 times [2024-11-28 04:48:00,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:00,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465102761] [2024-11-28 04:48:00,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:00,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:00,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:00,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:00,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:48:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:00,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:48:00,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:00,838 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 04:48:00,866 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 04:48:00,866 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:00,866 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:00,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465102761] [2024-11-28 04:48:00,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465102761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:00,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:00,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:48:00,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475941682] [2024-11-28 04:48:00,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:00,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:48:00,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:00,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:48:00,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:48:00,869 INFO L87 Difference]: Start difference. First operand 1336 states and 1419 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:05,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:05,306 INFO L93 Difference]: Finished difference Result 1657 states and 1760 transitions. [2024-11-28 04:48:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:48:05,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-28 04:48:05,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:05,315 INFO L225 Difference]: With dead ends: 1657 [2024-11-28 04:48:05,315 INFO L226 Difference]: Without dead ends: 1657 [2024-11-28 04:48:05,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 04:48:05,317 INFO L435 NwaCegarLoop]: 1175 mSDtfsCounter, 523 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:05,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1762 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:48:05,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2024-11-28 04:48:05,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1503. [2024-11-28 04:48:05,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 872 states have (on average 1.9575688073394495) internal successors, (1707), 1494 states have internal predecessors, (1707), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:48:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1739 transitions. [2024-11-28 04:48:05,394 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1739 transitions. Word has length 6 [2024-11-28 04:48:05,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:05,395 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1739 transitions. [2024-11-28 04:48:05,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:05,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1739 transitions. [2024-11-28 04:48:05,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 04:48:05,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:05,396 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:48:05,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:05,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:05,600 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:05,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:05,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1423920564, now seen corresponding path program 1 times [2024-11-28 04:48:05,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:05,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1729070729] [2024-11-28 04:48:05,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:05,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:05,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:05,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:05,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:48:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:05,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:48:05,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:05,846 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 04:48:05,848 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:05,849 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:05,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729070729] [2024-11-28 04:48:05,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729070729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:05,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:05,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:48:05,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295084511] [2024-11-28 04:48:05,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:05,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:48:05,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:05,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:48:05,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:48:05,852 INFO L87 Difference]: Start difference. First operand 1503 states and 1739 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:07,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:07,147 INFO L93 Difference]: Finished difference Result 2286 states and 2656 transitions. [2024-11-28 04:48:07,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:48:07,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-28 04:48:07,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:07,159 INFO L225 Difference]: With dead ends: 2286 [2024-11-28 04:48:07,159 INFO L226 Difference]: Without dead ends: 2286 [2024-11-28 04:48:07,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 04:48:07,161 INFO L435 NwaCegarLoop]: 1406 mSDtfsCounter, 692 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:07,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 3973 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:48:07,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states. [2024-11-28 04:48:07,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 1987. [2024-11-28 04:48:07,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1987 states, 1356 states have (on average 1.9306784660766962) internal successors, (2618), 1975 states have internal predecessors, (2618), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:48:07,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 2656 transitions. [2024-11-28 04:48:07,225 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 2656 transitions. Word has length 6 [2024-11-28 04:48:07,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:07,225 INFO L471 AbstractCegarLoop]: Abstraction has 1987 states and 2656 transitions. [2024-11-28 04:48:07,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:07,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 2656 transitions. [2024-11-28 04:48:07,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 04:48:07,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:07,226 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:07,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:07,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:07,431 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr626REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:07,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:07,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1706711327, now seen corresponding path program 1 times [2024-11-28 04:48:07,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:07,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134301554] [2024-11-28 04:48:07,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:07,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:07,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:07,435 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:07,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:48:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:07,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:48:07,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:07,690 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 04:48:07,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:07,691 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:07,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134301554] [2024-11-28 04:48:07,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134301554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:07,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:07,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:48:07,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33568730] [2024-11-28 04:48:07,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:07,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:48:07,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:07,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:48:07,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:48:07,693 INFO L87 Difference]: Start difference. First operand 1987 states and 2656 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 04:48:08,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:08,036 INFO L93 Difference]: Finished difference Result 2067 states and 2603 transitions. [2024-11-28 04:48:08,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:48:08,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 04:48:08,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:08,047 INFO L225 Difference]: With dead ends: 2067 [2024-11-28 04:48:08,047 INFO L226 Difference]: Without dead ends: 2067 [2024-11-28 04:48:08,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 04:48:08,048 INFO L435 NwaCegarLoop]: 1478 mSDtfsCounter, 316 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:08,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 2821 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:48:08,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2024-11-28 04:48:08,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1851. [2024-11-28 04:48:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1851 states, 1220 states have (on average 1.939344262295082) internal successors, (2366), 1839 states have internal predecessors, (2366), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:48:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2404 transitions. [2024-11-28 04:48:08,102 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 2404 transitions. Word has length 8 [2024-11-28 04:48:08,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:08,102 INFO L471 AbstractCegarLoop]: Abstraction has 1851 states and 2404 transitions. [2024-11-28 04:48:08,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 04:48:08,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 2404 transitions. [2024-11-28 04:48:08,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 04:48:08,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:08,104 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:08,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:48:08,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:08,304 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr628REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:08,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:08,305 INFO L85 PathProgramCache]: Analyzing trace with hash -806680878, now seen corresponding path program 1 times [2024-11-28 04:48:08,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:08,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440817663] [2024-11-28 04:48:08,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:08,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:08,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:08,310 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:08,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:48:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:08,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:48:08,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:08,593 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 04:48:08,593 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:08,593 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:08,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440817663] [2024-11-28 04:48:08,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440817663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:08,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:08,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:48:08,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985048080] [2024-11-28 04:48:08,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:08,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:48:08,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:08,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:48:08,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:48:08,595 INFO L87 Difference]: Start difference. First operand 1851 states and 2404 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:10,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:10,130 INFO L93 Difference]: Finished difference Result 2069 states and 2605 transitions. [2024-11-28 04:48:10,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:48:10,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-28 04:48:10,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:10,139 INFO L225 Difference]: With dead ends: 2069 [2024-11-28 04:48:10,139 INFO L226 Difference]: Without dead ends: 2069 [2024-11-28 04:48:10,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 04:48:10,140 INFO L435 NwaCegarLoop]: 1477 mSDtfsCounter, 319 mSDsluCounter, 2603 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 4080 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:10,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 4080 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:48:10,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2024-11-28 04:48:10,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 1853. [2024-11-28 04:48:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1222 states have (on average 1.9378068739770868) internal successors, (2368), 1841 states have internal predecessors, (2368), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:48:10,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2406 transitions. [2024-11-28 04:48:10,184 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2406 transitions. Word has length 11 [2024-11-28 04:48:10,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:10,184 INFO L471 AbstractCegarLoop]: Abstraction has 1853 states and 2406 transitions. [2024-11-28 04:48:10,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:10,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2406 transitions. [2024-11-28 04:48:10,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 04:48:10,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:10,185 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:10,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:10,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:10,386 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr731ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:10,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:10,386 INFO L85 PathProgramCache]: Analyzing trace with hash -806670060, now seen corresponding path program 1 times [2024-11-28 04:48:10,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:10,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1107841844] [2024-11-28 04:48:10,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:10,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:10,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:10,389 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:10,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:48:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:10,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:48:10,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:10,559 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 04:48:10,559 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:10,559 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:10,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107841844] [2024-11-28 04:48:10,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107841844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:10,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:10,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:48:10,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194285945] [2024-11-28 04:48:10,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:10,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:48:10,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:10,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:48:10,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:48:10,561 INFO L87 Difference]: Start difference. First operand 1853 states and 2406 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:12,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:12,672 INFO L93 Difference]: Finished difference Result 1855 states and 2407 transitions. [2024-11-28 04:48:12,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:48:12,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-28 04:48:12,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:12,683 INFO L225 Difference]: With dead ends: 1855 [2024-11-28 04:48:12,683 INFO L226 Difference]: Without dead ends: 1847 [2024-11-28 04:48:12,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 04:48:12,685 INFO L435 NwaCegarLoop]: 1408 mSDtfsCounter, 1 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:12,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2190 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 04:48:12,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2024-11-28 04:48:12,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1847. [2024-11-28 04:48:12,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1216 states have (on average 1.941611842105263) internal successors, (2361), 1835 states have internal predecessors, (2361), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:48:12,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2399 transitions. [2024-11-28 04:48:12,739 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2399 transitions. Word has length 11 [2024-11-28 04:48:12,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:12,740 INFO L471 AbstractCegarLoop]: Abstraction has 1847 states and 2399 transitions. [2024-11-28 04:48:12,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:12,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2399 transitions. [2024-11-28 04:48:12,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:48:12,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:12,741 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:12,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:48:12,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:12,942 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:12,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:12,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1783262039, now seen corresponding path program 1 times [2024-11-28 04:48:12,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:12,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782869514] [2024-11-28 04:48:12,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:12,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:12,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:12,947 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:12,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:48:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:13,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:48:13,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:13,185 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 04:48:13,239 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 04:48:13,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:13,239 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:13,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782869514] [2024-11-28 04:48:13,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782869514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:13,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:13,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:48:13,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358608811] [2024-11-28 04:48:13,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:13,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:48:13,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:13,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:48:13,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:48:13,242 INFO L87 Difference]: Start difference. First operand 1847 states and 2399 transitions. Second operand has 4 states, 3 states have (on average 4.0) 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 04:48:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:17,530 INFO L93 Difference]: Finished difference Result 1832 states and 2361 transitions. [2024-11-28 04:48:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:48:17,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) 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 04:48:17,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:17,536 INFO L225 Difference]: With dead ends: 1832 [2024-11-28 04:48:17,536 INFO L226 Difference]: Without dead ends: 1832 [2024-11-28 04:48:17,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 04:48:17,537 INFO L435 NwaCegarLoop]: 783 mSDtfsCounter, 1094 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:17,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1485 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 04:48:17,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2024-11-28 04:48:17,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1824. [2024-11-28 04:48:17,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1216 states have (on average 1.903782894736842) internal successors, (2315), 1812 states have internal predecessors, (2315), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:48:17,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2353 transitions. [2024-11-28 04:48:17,583 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2353 transitions. Word has length 12 [2024-11-28 04:48:17,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:17,584 INFO L471 AbstractCegarLoop]: Abstraction has 1824 states and 2353 transitions. [2024-11-28 04:48:17,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) 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 04:48:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2353 transitions. [2024-11-28 04:48:17,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:48:17,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:17,584 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:17,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:48:17,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:17,785 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:17,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:17,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1783262040, now seen corresponding path program 1 times [2024-11-28 04:48:17,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:17,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935900988] [2024-11-28 04:48:17,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:17,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:17,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:17,791 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:17,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:48:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:18,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:48:18,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:18,021 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 04:48:18,152 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 04:48:18,152 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:18,152 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:18,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935900988] [2024-11-28 04:48:18,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935900988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:18,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:18,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:48:18,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245278021] [2024-11-28 04:48:18,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:18,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:48:18,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:18,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:48:18,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:48:18,155 INFO L87 Difference]: Start difference. First operand 1824 states and 2353 transitions. Second operand has 4 states, 3 states have (on average 4.0) 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 04:48:24,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:24,257 INFO L93 Difference]: Finished difference Result 2110 states and 2530 transitions. [2024-11-28 04:48:24,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:48:24,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) 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 04:48:24,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:24,262 INFO L225 Difference]: With dead ends: 2110 [2024-11-28 04:48:24,262 INFO L226 Difference]: Without dead ends: 2110 [2024-11-28 04:48:24,262 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 04:48:24,263 INFO L435 NwaCegarLoop]: 1459 mSDtfsCounter, 648 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 2904 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:24,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 2904 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-28 04:48:24,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2024-11-28 04:48:24,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1940. [2024-11-28 04:48:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1332 states have (on average 1.843093093093093) internal successors, (2455), 1928 states have internal predecessors, (2455), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:48:24,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2493 transitions. [2024-11-28 04:48:24,306 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2493 transitions. Word has length 12 [2024-11-28 04:48:24,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:24,306 INFO L471 AbstractCegarLoop]: Abstraction has 1940 states and 2493 transitions. [2024-11-28 04:48:24,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) 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 04:48:24,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2493 transitions. [2024-11-28 04:48:24,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:48:24,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:24,308 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] [2024-11-28 04:48:24,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:48:24,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:24,513 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:24,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:24,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1048779893, now seen corresponding path program 1 times [2024-11-28 04:48:24,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:24,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618844772] [2024-11-28 04:48:24,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:24,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:24,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:24,517 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:24,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:48:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:24,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:48:24,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:24,844 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 04:48:25,193 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 04:48:25,194 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:25,851 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 04:48:25,851 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:25,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618844772] [2024-11-28 04:48:25,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618844772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:48:25,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:48:25,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-28 04:48:25,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633913657] [2024-11-28 04:48:25,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:48:25,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:48:25,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:25,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:48:25,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:48:25,853 INFO L87 Difference]: Start difference. First operand 1940 states and 2493 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 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 04:48:42,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:42,609 INFO L93 Difference]: Finished difference Result 2503 states and 3066 transitions. [2024-11-28 04:48:42,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:48:42,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-28 04:48:42,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:42,615 INFO L225 Difference]: With dead ends: 2503 [2024-11-28 04:48:42,615 INFO L226 Difference]: Without dead ends: 2503 [2024-11-28 04:48:42,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 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 04:48:42,616 INFO L435 NwaCegarLoop]: 1501 mSDtfsCounter, 1392 mSDsluCounter, 3010 mSDsCounter, 0 mSdLazyCounter, 3409 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 4511 SdHoareTripleChecker+Invalid, 3437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:42,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 4511 Invalid, 3437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3409 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2024-11-28 04:48:42,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2024-11-28 04:48:42,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2106. [2024-11-28 04:48:42,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2106 states, 1498 states have (on average 1.795060080106809) internal successors, (2689), 2094 states have internal predecessors, (2689), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:48:42,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 2727 transitions. [2024-11-28 04:48:42,704 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 2727 transitions. Word has length 31 [2024-11-28 04:48:42,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:42,708 INFO L471 AbstractCegarLoop]: Abstraction has 2106 states and 2727 transitions. [2024-11-28 04:48:42,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 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 04:48:42,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 2727 transitions. [2024-11-28 04:48:42,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 04:48:42,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:42,710 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] [2024-11-28 04:48:42,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:48:42,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:42,911 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:42,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:42,913 INFO L85 PathProgramCache]: Analyzing trace with hash -717313938, now seen corresponding path program 1 times [2024-11-28 04:48:42,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:42,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537573806] [2024-11-28 04:48:42,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:42,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:42,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:42,917 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:42,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:48:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:43,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:48:43,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:43,316 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 04:48:43,316 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:43,317 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:43,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537573806] [2024-11-28 04:48:43,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537573806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:43,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:43,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:48:43,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720301465] [2024-11-28 04:48:43,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:43,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:48:43,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:43,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:48:43,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:48:43,322 INFO L87 Difference]: Start difference. First operand 2106 states and 2727 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:43,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:43,483 INFO L93 Difference]: Finished difference Result 1791 states and 2287 transitions. [2024-11-28 04:48:43,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:48:43,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-28 04:48:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:43,507 INFO L225 Difference]: With dead ends: 1791 [2024-11-28 04:48:43,507 INFO L226 Difference]: Without dead ends: 1791 [2024-11-28 04:48:43,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:48:43,508 INFO L435 NwaCegarLoop]: 1324 mSDtfsCounter, 56 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3899 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 04:48:43,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3899 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:48:43,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2024-11-28 04:48:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1789. [2024-11-28 04:48:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1204 states have (on average 1.8662790697674418) internal successors, (2247), 1777 states have internal predecessors, (2247), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:48:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2285 transitions. [2024-11-28 04:48:43,539 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2285 transitions. Word has length 47 [2024-11-28 04:48:43,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:43,540 INFO L471 AbstractCegarLoop]: Abstraction has 1789 states and 2285 transitions. [2024-11-28 04:48:43,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:43,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2285 transitions. [2024-11-28 04:48:43,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 04:48:43,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:43,546 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] [2024-11-28 04:48:43,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:43,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:43,747 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:43,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:43,748 INFO L85 PathProgramCache]: Analyzing trace with hash 489889826, now seen corresponding path program 1 times [2024-11-28 04:48:43,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:43,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261652160] [2024-11-28 04:48:43,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:43,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:43,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:43,753 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:43,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:48:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:44,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:48:44,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:44,061 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 04:48:44,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:48:44,852 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 04:48:44,878 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:48:44,879 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 04:48:44,888 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 04:48:44,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:44,888 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:44,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261652160] [2024-11-28 04:48:44,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261652160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:44,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:44,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:48:44,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517655201] [2024-11-28 04:48:44,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:44,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:48:44,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:44,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:48:44,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:48:44,890 INFO L87 Difference]: Start difference. First operand 1789 states and 2285 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 04:48:49,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:49,276 INFO L93 Difference]: Finished difference Result 1705 states and 2160 transitions. [2024-11-28 04:48:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:48:49,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 55 [2024-11-28 04:48:49,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:49,282 INFO L225 Difference]: With dead ends: 1705 [2024-11-28 04:48:49,282 INFO L226 Difference]: Without dead ends: 1705 [2024-11-28 04:48:49,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 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 04:48:49,283 INFO L435 NwaCegarLoop]: 586 mSDtfsCounter, 1864 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:49,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 998 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:48:49,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-11-28 04:48:49,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1528. [2024-11-28 04:48:49,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1027 states have (on average 1.744888023369036) internal successors, (1792), 1516 states have internal predecessors, (1792), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:48:49,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1830 transitions. [2024-11-28 04:48:49,311 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1830 transitions. Word has length 55 [2024-11-28 04:48:49,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:49,312 INFO L471 AbstractCegarLoop]: Abstraction has 1528 states and 1830 transitions. [2024-11-28 04:48:49,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 04:48:49,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1830 transitions. [2024-11-28 04:48:49,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:48:49,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:49,317 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] [2024-11-28 04:48:49,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:49,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:49,518 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:49,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:49,519 INFO L85 PathProgramCache]: Analyzing trace with hash 225246615, now seen corresponding path program 1 times [2024-11-28 04:48:49,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:49,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849179539] [2024-11-28 04:48:49,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:49,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:49,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:49,524 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:49,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:48:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:49,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:48:49,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:49,853 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 04:48:49,871 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 04:48:49,909 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 04:48:49,921 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 04:48:49,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:49,921 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:49,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849179539] [2024-11-28 04:48:49,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849179539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:49,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:49,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:48:49,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748326995] [2024-11-28 04:48:49,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:49,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:48:49,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:49,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:48:49,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:48:49,922 INFO L87 Difference]: Start difference. First operand 1528 states and 1830 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 04:48:54,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:54,318 INFO L93 Difference]: Finished difference Result 1527 states and 1828 transitions. [2024-11-28 04:48:54,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:48:54,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 60 [2024-11-28 04:48:54,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:54,324 INFO L225 Difference]: With dead ends: 1527 [2024-11-28 04:48:54,324 INFO L226 Difference]: Without dead ends: 1527 [2024-11-28 04:48:54,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 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 04:48:54,325 INFO L435 NwaCegarLoop]: 1251 mSDtfsCounter, 2 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 1802 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3209 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:54,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3209 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1802 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:48:54,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2024-11-28 04:48:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1527. [2024-11-28 04:48:54,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1027 states have (on average 1.7429406037000974) internal successors, (1790), 1515 states have internal predecessors, (1790), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:48:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1828 transitions. [2024-11-28 04:48:54,358 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1828 transitions. Word has length 60 [2024-11-28 04:48:54,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:54,359 INFO L471 AbstractCegarLoop]: Abstraction has 1527 states and 1828 transitions. [2024-11-28 04:48:54,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 04:48:54,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1828 transitions. [2024-11-28 04:48:54,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:48:54,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:54,360 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] [2024-11-28 04:48:54,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:48:54,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:54,562 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:48:54,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:54,562 INFO L85 PathProgramCache]: Analyzing trace with hash 225246616, now seen corresponding path program 1 times [2024-11-28 04:48:54,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:54,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726016308] [2024-11-28 04:48:54,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:54,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:54,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:54,566 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:54,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:48:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:54,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:48:54,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:54,896 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 04:48:54,926 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 04:48:54,941 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 19 treesize of output 1 [2024-11-28 04:48:55,034 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 04:48:55,059 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 04:48:55,060 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:55,060 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:55,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726016308] [2024-11-28 04:48:55,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726016308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:55,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:55,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:48:55,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480351806] [2024-11-28 04:48:55,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:55,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:48:55,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:55,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:48:55,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:48:55,061 INFO L87 Difference]: Start difference. First operand 1527 states and 1828 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 04:49:00,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:00,553 INFO L93 Difference]: Finished difference Result 1526 states and 1826 transitions. [2024-11-28 04:49:00,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:49:00,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 60 [2024-11-28 04:49:00,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:00,558 INFO L225 Difference]: With dead ends: 1526 [2024-11-28 04:49:00,558 INFO L226 Difference]: Without dead ends: 1526 [2024-11-28 04:49:00,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 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 04:49:00,559 INFO L435 NwaCegarLoop]: 1251 mSDtfsCounter, 1 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3240 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:00,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3240 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-28 04:49:00,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2024-11-28 04:49:00,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1526. [2024-11-28 04:49:00,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1025 states have (on average 1.744390243902439) internal successors, (1788), 1514 states have internal predecessors, (1788), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:49:00,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1826 transitions. [2024-11-28 04:49:00,579 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1826 transitions. Word has length 60 [2024-11-28 04:49:00,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:00,579 INFO L471 AbstractCegarLoop]: Abstraction has 1526 states and 1826 transitions. [2024-11-28 04:49:00,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 04:49:00,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1826 transitions. [2024-11-28 04:49:00,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:49:00,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:00,580 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] [2024-11-28 04:49:00,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 04:49:00,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:00,781 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:49:00,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:00,781 INFO L85 PathProgramCache]: Analyzing trace with hash -2145934722, now seen corresponding path program 1 times [2024-11-28 04:49:00,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:49:00,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689244201] [2024-11-28 04:49:00,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:00,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:00,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:00,784 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:00,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:49:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:01,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:49:01,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:01,117 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 04:49:01,270 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 23 treesize of output 11 [2024-11-28 04:49:01,293 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 04:49:01,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:49:01,293 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:49:01,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689244201] [2024-11-28 04:49:01,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689244201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:01,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:49:01,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:49:01,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573286634] [2024-11-28 04:49:01,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:01,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:49:01,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:49:01,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:49:01,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:49:01,299 INFO L87 Difference]: Start difference. First operand 1526 states and 1826 transitions. Second operand has 7 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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 04:49:06,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:06,935 INFO L93 Difference]: Finished difference Result 1544 states and 1856 transitions. [2024-11-28 04:49:06,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:49:06,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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 68 [2024-11-28 04:49:06,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:06,947 INFO L225 Difference]: With dead ends: 1544 [2024-11-28 04:49:06,951 INFO L226 Difference]: Without dead ends: 1544 [2024-11-28 04:49:06,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 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 04:49:06,952 INFO L435 NwaCegarLoop]: 1234 mSDtfsCounter, 12 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4429 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:06,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4429 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-28 04:49:06,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-28 04:49:06,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1535. [2024-11-28 04:49:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1033 states have (on average 1.7415295256534367) internal successors, (1799), 1521 states have internal predecessors, (1799), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (28), 12 states have call predecessors, (28), 19 states have call successors, (28) [2024-11-28 04:49:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 1846 transitions. [2024-11-28 04:49:06,998 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 1846 transitions. Word has length 68 [2024-11-28 04:49:06,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:06,999 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 1846 transitions. [2024-11-28 04:49:06,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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 04:49:07,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 1846 transitions. [2024-11-28 04:49:07,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:49:07,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:07,004 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] [2024-11-28 04:49:07,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:49:07,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:07,204 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:49:07,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:07,205 INFO L85 PathProgramCache]: Analyzing trace with hash -2145934721, now seen corresponding path program 1 times [2024-11-28 04:49:07,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:49:07,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301785636] [2024-11-28 04:49:07,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:07,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:07,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:07,207 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:07,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:49:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:07,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:49:07,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:07,571 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 04:49:07,572 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:49:07,572 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:49:07,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301785636] [2024-11-28 04:49:07,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301785636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:07,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:49:07,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:49:07,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177271594] [2024-11-28 04:49:07,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:07,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:49:07,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:49:07,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:49:07,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:49:07,574 INFO L87 Difference]: Start difference. First operand 1535 states and 1846 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 04:49:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:07,680 INFO L93 Difference]: Finished difference Result 1529 states and 1832 transitions. [2024-11-28 04:49:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:49:07,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 68 [2024-11-28 04:49:07,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:07,695 INFO L225 Difference]: With dead ends: 1529 [2024-11-28 04:49:07,695 INFO L226 Difference]: Without dead ends: 1529 [2024-11-28 04:49:07,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 65 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 04:49:07,696 INFO L435 NwaCegarLoop]: 1250 mSDtfsCounter, 0 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:07,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3742 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:49:07,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-28 04:49:07,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1529. [2024-11-28 04:49:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1027 states have (on average 1.7439143135345667) internal successors, (1791), 1517 states have internal predecessors, (1791), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-28 04:49:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 1832 transitions. [2024-11-28 04:49:07,739 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 1832 transitions. Word has length 68 [2024-11-28 04:49:07,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:07,739 INFO L471 AbstractCegarLoop]: Abstraction has 1529 states and 1832 transitions. [2024-11-28 04:49:07,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 04:49:07,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 1832 transitions. [2024-11-28 04:49:07,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 04:49:07,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:07,740 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] [2024-11-28 04:49:07,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:49:07,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:07,941 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:49:07,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:07,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1587063681, now seen corresponding path program 1 times [2024-11-28 04:49:07,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:49:07,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164390076] [2024-11-28 04:49:07,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:07,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:07,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:07,944 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:07,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:49:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:08,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:49:08,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:08,280 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 04:49:08,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:08,388 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 04:49:08,388 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:49:08,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164390076] [2024-11-28 04:49:08,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164390076] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:49:08,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:49:08,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 04:49:08,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034316157] [2024-11-28 04:49:08,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:08,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:49:08,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:49:08,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:49:08,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:49:08,391 INFO L87 Difference]: Start difference. First operand 1529 states and 1832 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 04:49:08,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:08,641 INFO L93 Difference]: Finished difference Result 1541 states and 1851 transitions. [2024-11-28 04:49:08,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:49:08,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 69 [2024-11-28 04:49:08,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:08,648 INFO L225 Difference]: With dead ends: 1541 [2024-11-28 04:49:08,648 INFO L226 Difference]: Without dead ends: 1541 [2024-11-28 04:49:08,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 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 04:49:08,649 INFO L435 NwaCegarLoop]: 1249 mSDtfsCounter, 8 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:08,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3742 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:49:08,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2024-11-28 04:49:08,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1539. [2024-11-28 04:49:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1036 states have (on average 1.7432432432432432) internal successors, (1806), 1526 states have internal predecessors, (1806), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-28 04:49:08,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1847 transitions. [2024-11-28 04:49:08,678 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1847 transitions. Word has length 69 [2024-11-28 04:49:08,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:08,679 INFO L471 AbstractCegarLoop]: Abstraction has 1539 states and 1847 transitions. [2024-11-28 04:49:08,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 04:49:08,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1847 transitions. [2024-11-28 04:49:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 04:49:08,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:08,680 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] [2024-11-28 04:49:08,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 04:49:08,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:08,881 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:49:08,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:08,882 INFO L85 PathProgramCache]: Analyzing trace with hash 796170942, now seen corresponding path program 2 times [2024-11-28 04:49:08,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:49:08,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136361754] [2024-11-28 04:49:08,883 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:49:08,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:08,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:08,886 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:08,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:49:30,598 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:49:30,598 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:30,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:49:30,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:30,773 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:49:30,773 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 04:49:30,808 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 04:49:31,137 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:49:31,138 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 04:49:31,210 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 04:49:31,242 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 04:49:31,243 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:31,415 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:49:31,415 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 04:49:31,431 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_847 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_847) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem32#1.base|)) is different from false [2024-11-28 04:49:31,435 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:49:31,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136361754] [2024-11-28 04:49:31,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136361754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:31,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1775631246] [2024-11-28 04:49:31,436 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:49:31,437 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:49:31,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:49:31,439 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:49:31,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-28 04:49:32,891 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:49:32,892 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:32,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:49:32,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:33,213 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 04:49:33,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:33,673 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 04:49:33,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1775631246] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:49:33,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:49:33,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-11-28 04:49:33,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589202548] [2024-11-28 04:49:33,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:33,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 04:49:33,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:49:33,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 04:49:33,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2024-11-28 04:49:33,677 INFO L87 Difference]: Start difference. First operand 1539 states and 1847 transitions. Second operand has 24 states, 23 states have (on average 5.913043478260869) internal successors, (136), 23 states have internal predecessors, (136), 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 04:49:53,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:53,220 INFO L93 Difference]: Finished difference Result 1555 states and 1870 transitions. [2024-11-28 04:49:53,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 04:49:53,221 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.913043478260869) internal successors, (136), 23 states have internal predecessors, (136), 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 72 [2024-11-28 04:49:53,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:53,226 INFO L225 Difference]: With dead ends: 1555 [2024-11-28 04:49:53,226 INFO L226 Difference]: Without dead ends: 1549 [2024-11-28 04:49:53,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=392, Invalid=2161, Unknown=1, NotChecked=98, Total=2652 [2024-11-28 04:49:53,228 INFO L435 NwaCegarLoop]: 755 mSDtfsCounter, 1000 mSDsluCounter, 9150 mSDsCounter, 0 mSdLazyCounter, 8128 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 9905 SdHoareTripleChecker+Invalid, 8171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 8128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:53,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 9905 Invalid, 8171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [43 Valid, 8128 Invalid, 0 Unknown, 0 Unchecked, 18.0s Time] [2024-11-28 04:49:53,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2024-11-28 04:49:53,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1547. [2024-11-28 04:49:53,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1045 states have (on average 1.736842105263158) internal successors, (1815), 1534 states have internal predecessors, (1815), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-28 04:49:53,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 1856 transitions. [2024-11-28 04:49:53,256 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 1856 transitions. Word has length 72 [2024-11-28 04:49:53,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:53,256 INFO L471 AbstractCegarLoop]: Abstraction has 1547 states and 1856 transitions. [2024-11-28 04:49:53,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.913043478260869) internal successors, (136), 23 states have internal predecessors, (136), 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 04:49:53,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 1856 transitions. [2024-11-28 04:49:53,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:49:53,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:53,258 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] [2024-11-28 04:49:53,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:49:53,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-28 04:49:53,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:49:53,659 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:49:53,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:53,659 INFO L85 PathProgramCache]: Analyzing trace with hash -211840225, now seen corresponding path program 1 times [2024-11-28 04:49:53,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:49:53,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866419891] [2024-11-28 04:49:53,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:53,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:53,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:53,662 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:53,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:49:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:54,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:49:54,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:54,273 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 04:49:54,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:55,140 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 04:49:55,140 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:49:55,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866419891] [2024-11-28 04:49:55,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866419891] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:49:55,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:49:55,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-28 04:49:55,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393356109] [2024-11-28 04:49:55,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:55,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:49:55,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:49:55,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:49:55,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:49:55,143 INFO L87 Difference]: Start difference. First operand 1547 states and 1856 transitions. Second operand has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 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 04:49:57,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:57,898 INFO L93 Difference]: Finished difference Result 1571 states and 1895 transitions. [2024-11-28 04:49:57,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:49:57,899 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 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 78 [2024-11-28 04:49:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:57,904 INFO L225 Difference]: With dead ends: 1571 [2024-11-28 04:49:57,904 INFO L226 Difference]: Without dead ends: 1565 [2024-11-28 04:49:57,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:49:57,905 INFO L435 NwaCegarLoop]: 1249 mSDtfsCounter, 16 mSDsluCounter, 16174 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 17423 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:57,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 17423 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:49:57,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-11-28 04:49:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2024-11-28 04:49:57,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1063 states have (on average 1.729068673565381) internal successors, (1838), 1552 states have internal predecessors, (1838), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-28 04:49:57,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 1879 transitions. [2024-11-28 04:49:57,935 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 1879 transitions. Word has length 78 [2024-11-28 04:49:57,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:57,936 INFO L471 AbstractCegarLoop]: Abstraction has 1565 states and 1879 transitions. [2024-11-28 04:49:57,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 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 04:49:57,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 1879 transitions. [2024-11-28 04:49:57,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:49:57,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:57,937 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] [2024-11-28 04:49:57,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:49:58,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:58,138 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:49:58,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:58,139 INFO L85 PathProgramCache]: Analyzing trace with hash 333458399, now seen corresponding path program 2 times [2024-11-28 04:49:58,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:49:58,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647248449] [2024-11-28 04:49:58,139 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:49:58,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:58,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:58,142 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:58,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:50:19,929 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:50:19,929 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:19,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-28 04:50:19,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:20,100 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:50:20,100 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 04:50:20,108 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 04:50:20,146 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 04:50:20,155 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 04:50:20,303 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 04:50:20,311 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 04:50:21,002 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:50:21,003 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 04:50:21,021 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 04:50:21,088 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 04:50:21,097 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 04:50:21,147 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 04:50:21,147 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:22,016 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:50:22,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647248449] [2024-11-28 04:50:22,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647248449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:22,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [598353327] [2024-11-28 04:50:22,017 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:50:22,017 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:50:22,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:50:22,019 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:50:22,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-28 04:50:23,641 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:50:23,641 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:23,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 04:50:23,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:25,206 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 04:50:25,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:29,084 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 04:50:29,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [598353327] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:50:29,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:50:29,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58 [2024-11-28 04:50:29,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339682724] [2024-11-28 04:50:29,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:50:29,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-28 04:50:29,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:50:29,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-28 04:50:29,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=700, Invalid=2953, Unknown=7, NotChecked=0, Total=3660 [2024-11-28 04:50:29,088 INFO L87 Difference]: Start difference. First operand 1565 states and 1879 transitions. Second operand has 58 states, 57 states have (on average 3.017543859649123) internal successors, (172), 58 states have internal predecessors, (172), 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 04:51:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:41,798 INFO L93 Difference]: Finished difference Result 1667 states and 2036 transitions. [2024-11-28 04:51:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2024-11-28 04:51:41,799 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.017543859649123) internal successors, (172), 58 states have internal predecessors, (172), 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 90 [2024-11-28 04:51:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:41,804 INFO L225 Difference]: With dead ends: 1667 [2024-11-28 04:51:41,804 INFO L226 Difference]: Without dead ends: 1651 [2024-11-28 04:51:41,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6172 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=5454, Invalid=19661, Unknown=7, NotChecked=0, Total=25122 [2024-11-28 04:51:41,811 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 1020 mSDsluCounter, 20426 mSDsCounter, 0 mSdLazyCounter, 18985 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 21188 SdHoareTripleChecker+Invalid, 19059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 18985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:41,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 21188 Invalid, 19059 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [74 Valid, 18985 Invalid, 0 Unknown, 0 Unchecked, 50.8s Time] [2024-11-28 04:51:41,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2024-11-28 04:51:41,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1651. [2024-11-28 04:51:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1149 states have (on average 1.6849434290687555) internal successors, (1936), 1637 states have internal predecessors, (1936), 19 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-28 04:51:41,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1977 transitions. [2024-11-28 04:51:41,842 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1977 transitions. Word has length 90 [2024-11-28 04:51:41,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:41,842 INFO L471 AbstractCegarLoop]: Abstraction has 1651 states and 1977 transitions. [2024-11-28 04:51:41,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.017543859649123) internal successors, (172), 58 states have internal predecessors, (172), 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 04:51:41,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1977 transitions. [2024-11-28 04:51:41,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 04:51:41,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:41,844 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] [2024-11-28 04:51:41,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:42,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:51:42,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:42,245 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:51:42,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:42,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1337454903, now seen corresponding path program 1 times [2024-11-28 04:51:42,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:42,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211714405] [2024-11-28 04:51:42,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:42,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:42,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:42,248 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:42,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:51:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:42,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-28 04:51:42,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:42,891 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 04:51:43,032 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:51:43,032 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 04:51:43,052 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 04:51:43,502 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:51:43,502 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 04:51:43,578 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:51:43,578 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 04:51:43,632 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 04:51:43,657 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 04:51:43,657 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:43,715 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:51:43,715 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 04:51:43,782 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2048 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2048) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-28 04:51:44,295 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2094 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_2094)) (.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_2048) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-28 04:51:44,298 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:44,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211714405] [2024-11-28 04:51:44,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211714405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:44,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1289601601] [2024-11-28 04:51:44,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:44,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:51:44,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:51:44,300 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:51:44,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-28 04:51:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:48,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-28 04:51:48,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:48,161 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-28 04:51:48,162 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 14 treesize of output 20 [2024-11-28 04:51:48,718 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-11-28 04:51:48,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 43 [2024-11-28 04:51:48,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 04:51:49,115 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 34 treesize of output 16 [2024-11-28 04:51:51,172 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:51:51,173 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 54 treesize of output 51 [2024-11-28 04:51:51,459 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:51:51,459 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 54 treesize of output 51 [2024-11-28 04:51:51,515 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 43 treesize of output 19 [2024-11-28 04:51:51,636 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 04:51:51,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:51,758 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2500 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2500) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:51:52,336 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2546 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2500 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_2546))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2500)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:51:52,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1289601601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:52,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:51:52,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 19 [2024-11-28 04:51:52,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571884980] [2024-11-28 04:51:52,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:52,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:51:52,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:52,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:51:52,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=407, Unknown=20, NotChecked=180, Total=702 [2024-11-28 04:51:52,341 INFO L87 Difference]: Start difference. First operand 1651 states and 1977 transitions. Second operand has 20 states, 17 states have (on average 8.352941176470589) internal successors, (142), 20 states have internal predecessors, (142), 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 04:52:11,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:11,569 INFO L93 Difference]: Finished difference Result 2924 states and 3410 transitions. [2024-11-28 04:52:11,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:52:11,570 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.352941176470589) internal successors, (142), 20 states have internal predecessors, (142), 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 115 [2024-11-28 04:52:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:11,578 INFO L225 Difference]: With dead ends: 2924 [2024-11-28 04:52:11,579 INFO L226 Difference]: Without dead ends: 2924 [2024-11-28 04:52:11,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=168, Invalid=815, Unknown=25, NotChecked=252, Total=1260 [2024-11-28 04:52:11,580 INFO L435 NwaCegarLoop]: 652 mSDtfsCounter, 2773 mSDsluCounter, 6602 mSDsCounter, 0 mSdLazyCounter, 7314 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2807 SdHoareTripleChecker+Valid, 7254 SdHoareTripleChecker+Invalid, 7400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 7314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:11,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2807 Valid, 7254 Invalid, 7400 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 7314 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2024-11-28 04:52:11,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2024-11-28 04:52:11,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2229. [2024-11-28 04:52:11,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 1723 states have (on average 1.636099825885084) internal successors, (2819), 2208 states have internal predecessors, (2819), 25 states have call successors, (25), 7 states have call predecessors, (25), 9 states have return successors, (30), 14 states have call predecessors, (30), 25 states have call successors, (30) [2024-11-28 04:52:11,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 2874 transitions. [2024-11-28 04:52:11,636 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 2874 transitions. Word has length 115 [2024-11-28 04:52:11,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:11,636 INFO L471 AbstractCegarLoop]: Abstraction has 2229 states and 2874 transitions. [2024-11-28 04:52:11,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.352941176470589) internal successors, (142), 20 states have internal predecessors, (142), 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 04:52:11,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 2874 transitions. [2024-11-28 04:52:11,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 04:52:11,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:11,640 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] [2024-11-28 04:52:11,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-28 04:52:11,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:52:12,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:12,041 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr75REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:52:12,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:12,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1337454902, now seen corresponding path program 1 times [2024-11-28 04:52:12,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:52:12,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1577807647] [2024-11-28 04:52:12,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:12,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:12,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:12,045 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:12,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:52:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:12,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 111 conjuncts are in the unsatisfiable core [2024-11-28 04:52:12,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:12,759 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 04:52:12,901 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 04:52:12,919 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:52:12,920 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 04:52:12,952 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 04:52:12,960 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 04:52:13,131 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 04:52:13,138 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 04:52:14,115 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:14,116 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 04:52:14,134 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 04:52:14,301 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:14,302 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 04:52:14,315 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 04:52:14,359 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 04:52:14,370 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 04:52:14,409 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 04:52:14,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:14,601 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_2998 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_2998) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_2998 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2999 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_2998) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_2999) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:52:14,637 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_2998 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_2998) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_2998 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2999 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_2998) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_2999) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:52:16,392 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3091 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3090 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2998 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2999 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3090))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3091) .cse0 v_ArrVal_2998) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_2999) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_3091 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3090 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2998 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3091) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3090) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2998) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3)))))) is different from false [2024-11-28 04:52:16,401 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:52:16,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577807647] [2024-11-28 04:52:16,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577807647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:16,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1465332732] [2024-11-28 04:52:16,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:16,402 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:52:16,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:52:16,404 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:52:16,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-28 04:52:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:20,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-28 04:52:20,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:20,336 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 04:52:20,489 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 04:52:20,511 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:52:20,511 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 04:52:20,527 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 04:52:20,538 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 04:52:20,614 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 04:52:20,622 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 04:52:21,566 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:21,566 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 04:52:21,576 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 04:52:21,662 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:21,662 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 04:52:21,673 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 04:52:21,704 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 04:52:21,712 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 04:52:21,714 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 04:52:21,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:21,785 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3543 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3543) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3544 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3543 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3543) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3544) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:52:21,816 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3543 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_3543) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3544 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3543 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_3543) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_3544) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:52:23,560 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3636 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3635 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3543 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3636) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3635) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3543) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3636 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3544 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3635 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3543 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3635))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3636) .cse2 v_ArrVal_3543) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_3544) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 04:52:23,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1465332732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:23,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:52:23,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2024-11-28 04:52:23,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082814398] [2024-11-28 04:52:23,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:23,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:52:23,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:52:23,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:52:23,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=110, Unknown=6, NotChecked=150, Total=306 [2024-11-28 04:52:23,572 INFO L87 Difference]: Start difference. First operand 2229 states and 2874 transitions. Second operand has 10 states, 8 states have (on average 8.875) internal successors, (71), 10 states have internal predecessors, (71), 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 04:52:36,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:36,646 INFO L93 Difference]: Finished difference Result 2228 states and 2871 transitions. [2024-11-28 04:52:36,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:52:36,648 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.875) internal successors, (71), 10 states have internal predecessors, (71), 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 115 [2024-11-28 04:52:36,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:36,656 INFO L225 Difference]: With dead ends: 2228 [2024-11-28 04:52:36,656 INFO L226 Difference]: Without dead ends: 2228 [2024-11-28 04:52:36,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 223 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=219, Unknown=6, NotChecked=210, Total=506 [2024-11-28 04:52:36,658 INFO L435 NwaCegarLoop]: 764 mSDtfsCounter, 921 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 4615 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 4626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:36,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 3150 Invalid, 4626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 4615 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2024-11-28 04:52:36,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2024-11-28 04:52:36,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2228. [2024-11-28 04:52:36,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 1723 states have (on average 1.6343586767266396) internal successors, (2816), 2207 states have internal predecessors, (2816), 25 states have call successors, (25), 7 states have call predecessors, (25), 9 states have return successors, (30), 14 states have call predecessors, (30), 25 states have call successors, (30) [2024-11-28 04:52:36,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2871 transitions. [2024-11-28 04:52:36,702 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2871 transitions. Word has length 115 [2024-11-28 04:52:36,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:36,702 INFO L471 AbstractCegarLoop]: Abstraction has 2228 states and 2871 transitions. [2024-11-28 04:52:36,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.875) internal successors, (71), 10 states have internal predecessors, (71), 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 04:52:36,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2871 transitions. [2024-11-28 04:52:36,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 04:52:36,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:36,704 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] [2024-11-28 04:52:36,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-28 04:52:36,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 04:52:37,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:37,105 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:52:37,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:37,106 INFO L85 PathProgramCache]: Analyzing trace with hash 292886661, now seen corresponding path program 1 times [2024-11-28 04:52:37,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:52:37,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24434528] [2024-11-28 04:52:37,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:37,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:37,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:37,109 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:37,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:52:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:37,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-28 04:52:37,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:37,875 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 04:52:38,016 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:52:38,016 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 04:52:38,036 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 04:52:38,672 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:38,673 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 04:52:38,795 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:38,796 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 04:52:38,889 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:38,889 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 04:52:38,914 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 04:52:38,941 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 04:52:38,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:38,987 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4057 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_4057) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (_ bv0 1))) is different from false [2024-11-28 04:52:39,001 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4057 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_4057) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:52:39,019 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4057 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4056 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_4056))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4057)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:52:39,032 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4057 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4056 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4056))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4057)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:52:39,640 INFO L349 Elim1Store]: treesize reduction 7, result has 87.3 percent of original size [2024-11-28 04:52:39,640 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 61 treesize of output 60 [2024-11-28 04:52:39,653 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4057 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4103 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4056 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem32#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_4103))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4056)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4057)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-28 04:52:39,657 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:52:39,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24434528] [2024-11-28 04:52:39,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24434528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:39,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [767867157] [2024-11-28 04:52:39,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:39,657 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:52:39,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:52:39,659 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:52:39,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-28 04:52:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:54,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-28 04:52:54,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:54,569 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-28 04:52:54,570 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 14 treesize of output 20 [2024-11-28 04:52:54,972 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-11-28 04:52:54,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 43 [2024-11-28 04:52:55,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 04:52:55,343 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 34 treesize of output 16 [2024-11-28 04:52:56,947 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:56,947 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 54 treesize of output 51 [2024-11-28 04:52:57,190 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:57,190 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 54 treesize of output 51 [2024-11-28 04:52:57,368 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:57,369 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 54 treesize of output 51 [2024-11-28 04:52:57,422 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 43 treesize of output 19 [2024-11-28 04:52:57,511 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 04:52:57,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:57,623 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4525 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_4525) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (_ bv0 1))) is different from false [2024-11-28 04:52:57,639 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4524 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4525 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_4524))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4525)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:52:57,652 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4524 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4525 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4524))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4525)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:52:58,175 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4524 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4525 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4571 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_4571))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4524)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4525)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:52:58,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [767867157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:58,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:52:58,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 22 [2024-11-28 04:52:58,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819373839] [2024-11-28 04:52:58,179 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:58,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:52:58,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:52:58,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:52:58,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=501, Unknown=15, NotChecked=486, Total=1122 [2024-11-28 04:52:58,181 INFO L87 Difference]: Start difference. First operand 2228 states and 2871 transitions. Second operand has 23 states, 20 states have (on average 7.4) internal successors, (148), 22 states have internal predecessors, (148), 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 04:53:19,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:19,665 INFO L93 Difference]: Finished difference Result 2920 states and 3404 transitions. [2024-11-28 04:53:19,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 04:53:19,667 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 7.4) internal successors, (148), 22 states have internal predecessors, (148), 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 118 [2024-11-28 04:53:19,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:19,675 INFO L225 Difference]: With dead ends: 2920 [2024-11-28 04:53:19,675 INFO L226 Difference]: Without dead ends: 2920 [2024-11-28 04:53:19,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 221 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=241, Invalid=1259, Unknown=18, NotChecked=738, Total=2256 [2024-11-28 04:53:19,676 INFO L435 NwaCegarLoop]: 650 mSDtfsCounter, 3550 mSDsluCounter, 7295 mSDsCounter, 0 mSdLazyCounter, 8140 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 7945 SdHoareTripleChecker+Invalid, 8249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 8140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:19,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3584 Valid, 7945 Invalid, 8249 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [109 Valid, 8140 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2024-11-28 04:53:19,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2024-11-28 04:53:19,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 2227. [2024-11-28 04:53:19,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1723 states have (on average 1.6326175275681951) internal successors, (2813), 2206 states have internal predecessors, (2813), 25 states have call successors, (25), 7 states have call predecessors, (25), 9 states have return successors, (30), 14 states have call predecessors, (30), 25 states have call successors, (30) [2024-11-28 04:53:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 2868 transitions. [2024-11-28 04:53:19,716 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 2868 transitions. Word has length 118 [2024-11-28 04:53:19,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:19,717 INFO L471 AbstractCegarLoop]: Abstraction has 2227 states and 2868 transitions. [2024-11-28 04:53:19,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 7.4) internal successors, (148), 22 states have internal predecessors, (148), 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 04:53:19,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 2868 transitions. [2024-11-28 04:53:19,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 04:53:19,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:19,719 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] [2024-11-28 04:53:19,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:19,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-28 04:53:20,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:53:20,120 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:53:20,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:20,121 INFO L85 PathProgramCache]: Analyzing trace with hash 292886662, now seen corresponding path program 1 times [2024-11-28 04:53:20,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:53:20,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167419818] [2024-11-28 04:53:20,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:20,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:20,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:20,126 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:20,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:53:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:20,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-28 04:53:20,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:20,993 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 04:53:21,128 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 04:53:21,152 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:53:21,152 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 04:53:21,197 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 04:53:21,204 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 04:53:21,374 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 04:53:21,381 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 04:53:22,260 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:53:22,260 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 04:53:22,271 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 04:53:22,402 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:53:22,402 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 04:53:22,416 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 04:53:22,527 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:53:22,527 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 04:53:22,537 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 04:53:22,567 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 04:53:22,575 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 04:53:22,609 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 04:53:22,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:22,776 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5040 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5041 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_5040 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd (_ bv12 32) .cse1)))))) is different from false [2024-11-28 04:53:22,805 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_5040 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5041 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_5040 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5040) |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 04:53:22,868 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5040 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5039))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5038) .cse0 v_ArrVal_5040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_5041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_5040 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5038) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5039) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5040) |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 04:53:22,925 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5040 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5038) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_5039) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_5040 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_5039))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5038) .cse3 v_ArrVal_5040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_5041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-28 04:53:24,917 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:53:24,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167419818] [2024-11-28 04:53:24,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167419818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:24,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2092190622] [2024-11-28 04:53:24,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:24,917 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:53:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:53:24,919 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:53:24,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-28 04:53:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:40,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-28 04:53:40,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:40,435 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 04:53:40,616 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 04:53:40,631 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:53:40,631 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 04:53:40,656 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 04:53:40,674 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 04:53:40,764 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 04:53:40,769 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 04:53:41,592 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:53:41,593 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 04:53:41,607 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 04:53:41,681 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:53:41,681 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 04:53:41,691 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 04:53:41,790 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:53:41,790 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 04:53:41,800 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 04:53:41,829 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 04:53:41,837 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 04:53:41,841 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 04:53:41,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:42,150 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5603 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5602 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5603 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_5602) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:53:42,194 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5601 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5600 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5600) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5601) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5601 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5602 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5600 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5601))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5600) .cse2 v_ArrVal_5603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_5602) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 04:53:42,235 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5601 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5602 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5600 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5601))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5600) .cse1 v_ArrVal_5603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5602) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_5601 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5600 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5600) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5601) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5603) |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 04:53:43,944 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5601 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5600 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5694 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5695 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5695))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5694) .cse1 v_ArrVal_5600) (select (select (store .cse2 .cse1 v_ArrVal_5601) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_5603))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_5601 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5602 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5600 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5694 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5695 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5695))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_5601))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5694) .cse4 v_ArrVal_5600) .cse5 v_ArrVal_5603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv12 32)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_5602) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-28 04:53:43,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2092190622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:43,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:53:43,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2024-11-28 04:53:43,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196927629] [2024-11-28 04:53:43,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:43,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:53:43,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:53:43,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:53:43,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=164, Unknown=24, NotChecked=264, Total=506 [2024-11-28 04:53:43,955 INFO L87 Difference]: Start difference. First operand 2227 states and 2868 transitions. Second operand has 11 states, 9 states have (on average 8.222222222222221) internal successors, (74), 11 states have internal predecessors, (74), 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 04:53:58,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:58,009 INFO L93 Difference]: Finished difference Result 2226 states and 2865 transitions. [2024-11-28 04:53:58,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:53:58,010 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.222222222222221) internal successors, (74), 11 states have internal predecessors, (74), 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 118 [2024-11-28 04:53:58,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:58,017 INFO L225 Difference]: With dead ends: 2226 [2024-11-28 04:53:58,018 INFO L226 Difference]: Without dead ends: 2226 [2024-11-28 04:53:58,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 230 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=94, Invalid=331, Unknown=27, NotChecked=360, Total=812 [2024-11-28 04:53:58,019 INFO L435 NwaCegarLoop]: 763 mSDtfsCounter, 919 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 4607 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 4618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:58,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 3169 Invalid, 4618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 4607 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2024-11-28 04:53:58,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2024-11-28 04:53:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2226. [2024-11-28 04:53:58,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 1723 states have (on average 1.6308763784097504) internal successors, (2810), 2205 states have internal predecessors, (2810), 25 states have call successors, (25), 7 states have call predecessors, (25), 9 states have return successors, (30), 14 states have call predecessors, (30), 25 states have call successors, (30) [2024-11-28 04:53:58,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 2865 transitions. [2024-11-28 04:53:58,056 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 2865 transitions. Word has length 118 [2024-11-28 04:53:58,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:58,057 INFO L471 AbstractCegarLoop]: Abstraction has 2226 states and 2865 transitions. [2024-11-28 04:53:58,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.222222222222221) internal successors, (74), 11 states have internal predecessors, (74), 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 04:53:58,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 2865 transitions. [2024-11-28 04:53:58,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:58,059 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:58,059 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] [2024-11-28 04:53:58,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:58,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-28 04:53:58,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:53:58,460 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:53:58,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1986723728, now seen corresponding path program 1 times [2024-11-28 04:53:58,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:53:58,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908520314] [2024-11-28 04:53:58,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:58,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:58,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:58,465 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:58,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:53:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:59,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-28 04:53:59,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:59,587 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:53:59,588 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 04:53:59,610 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 04:54:00,209 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:00,210 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 04:54:00,330 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:00,330 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 04:54:00,424 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:00,424 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 04:54:00,518 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:00,519 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 04:54:00,538 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 04:54:00,568 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 04:54:00,568 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:00,683 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_6131) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:54:00,699 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6130))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:54:00,711 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6130))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:54:00,730 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6129 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6129))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6130)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:54:00,745 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6129 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6129))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6130)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:54:01,327 INFO L349 Elim1Store]: treesize reduction 7, result has 93.2 percent of original size [2024-11-28 04:54:01,328 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 109 treesize of output 108 [2024-11-28 04:54:01,345 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6129 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6177 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_6177))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6129)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6130)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem32#1.base|)) is different from false [2024-11-28 04:54:01,349 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:54:01,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908520314] [2024-11-28 04:54:01,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908520314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:01,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1076714986] [2024-11-28 04:54:01,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:01,349 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:54:01,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:54:01,351 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:54:01,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-28 04:54:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:21,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-28 04:54:21,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:21,803 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-28 04:54:21,804 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 14 treesize of output 20 [2024-11-28 04:54:22,146 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-11-28 04:54:22,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 43 [2024-11-28 04:54:22,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 04:54:22,465 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 34 treesize of output 16 [2024-11-28 04:54:24,172 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:24,172 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 54 treesize of output 51 [2024-11-28 04:54:24,433 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:24,433 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 54 treesize of output 51 [2024-11-28 04:54:24,592 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:24,592 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 54 treesize of output 51 [2024-11-28 04:54:24,756 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:24,757 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 54 treesize of output 51 [2024-11-28 04:54:24,801 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 43 treesize of output 19 [2024-11-28 04:54:24,884 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 04:54:24,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:24,969 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6614))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:54:24,979 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6614))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:54:24,998 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6613 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6613))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6614)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:54:25,012 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6613 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6613))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6614)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:54:25,449 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6613 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6661 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_6661))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6613)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6614)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:54:25,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1076714986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:25,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:54:25,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 24 [2024-11-28 04:54:25,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422850753] [2024-11-28 04:54:25,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:25,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:54:25,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:54:25,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:54:25,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=589, Unknown=18, NotChecked=660, Total=1406 [2024-11-28 04:54:25,456 INFO L87 Difference]: Start difference. First operand 2226 states and 2865 transitions. Second operand has 25 states, 22 states have (on average 7.0) internal successors, (154), 24 states have internal predecessors, (154), 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 04:54:45,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:45,685 INFO L93 Difference]: Finished difference Result 2916 states and 3398 transitions. [2024-11-28 04:54:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 04:54:45,686 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 7.0) internal successors, (154), 24 states have internal predecessors, (154), 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 121 [2024-11-28 04:54:45,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:45,693 INFO L225 Difference]: With dead ends: 2916 [2024-11-28 04:54:45,694 INFO L226 Difference]: Without dead ends: 2916 [2024-11-28 04:54:45,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 228 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=272, Invalid=1472, Unknown=22, NotChecked=990, Total=2756 [2024-11-28 04:54:45,695 INFO L435 NwaCegarLoop]: 649 mSDtfsCounter, 1950 mSDsluCounter, 7988 mSDsCounter, 0 mSdLazyCounter, 8871 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 8637 SdHoareTripleChecker+Invalid, 8937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 8871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:45,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1984 Valid, 8637 Invalid, 8937 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 8871 Invalid, 0 Unknown, 0 Unchecked, 19.5s Time] [2024-11-28 04:54:45,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2024-11-28 04:54:45,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 2225. [2024-11-28 04:54:45,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 1723 states have (on average 1.629135229251306) internal successors, (2807), 2204 states have internal predecessors, (2807), 25 states have call successors, (25), 7 states have call predecessors, (25), 9 states have return successors, (30), 14 states have call predecessors, (30), 25 states have call successors, (30) [2024-11-28 04:54:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2862 transitions. [2024-11-28 04:54:45,735 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2862 transitions. Word has length 121 [2024-11-28 04:54:45,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:45,736 INFO L471 AbstractCegarLoop]: Abstraction has 2225 states and 2862 transitions. [2024-11-28 04:54:45,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 7.0) internal successors, (154), 24 states have internal predecessors, (154), 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 04:54:45,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2862 transitions. [2024-11-28 04:54:45,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:54:45,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:45,741 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] [2024-11-28 04:54:45,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2024-11-28 04:54:45,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:46,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:46,142 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:54:46,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:46,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1986723727, now seen corresponding path program 1 times [2024-11-28 04:54:46,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:54:46,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039671523] [2024-11-28 04:54:46,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:46,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:46,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:46,146 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:46,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:54:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:46,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-28 04:54:46,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:47,098 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:54:47,098 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 04:54:47,107 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 04:54:47,132 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 04:54:47,140 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 04:54:47,250 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 04:54:47,254 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 04:54:48,008 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:48,009 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 04:54:48,022 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 04:54:48,137 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:48,137 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 04:54:48,147 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 04:54:48,250 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:48,250 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 04:54:48,259 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 04:54:48,368 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:48,368 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 04:54:48,377 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 04:54:48,407 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 04:54:48,415 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 04:54:48,447 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 04:54:48,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:48,604 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7147 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7146) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7147) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7146) |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 04:54:48,634 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7146) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7147 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7146) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7147) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:54:48,743 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7147 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7144))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7145) .cse0 v_ArrVal_7146) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_7147) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_7144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7145) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7144) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7146) |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 04:54:48,830 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7147 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7144))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7145) .cse1 v_ArrVal_7146) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7147) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_7144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7145) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7144) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7146) |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 04:54:49,332 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7142 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7143 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7142))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7143) .cse1 v_ArrVal_7145) (select (select (store .cse2 .cse1 v_ArrVal_7144) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7146))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7142 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7143 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7147 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7142))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_7144))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7143) .cse4 v_ArrVal_7145) .cse5 v_ArrVal_7146) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_7147) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-28 04:54:49,831 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_7142 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7143 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7142))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7143) .cse2 v_ArrVal_7145) (select (select (store .cse3 .cse2 v_ArrVal_7144) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_7146))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_7142 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7143 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7147 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7142))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_7144))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7143) .cse5 v_ArrVal_7145) .cse6 v_ArrVal_7146) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) (_ bv24 32)) (select |c_#length| (select (select (store .cse7 .cse6 v_ArrVal_7147) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) is different from false [2024-11-28 04:54:56,309 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7142 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7143 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7238 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7239 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_7239))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_7142))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_7238) .cse1 v_ArrVal_7143) .cse2 v_ArrVal_7145) (select (select (store .cse3 .cse2 v_ArrVal_7144) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_7146))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7142 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7143 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7238 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7239 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7146 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7147 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_7239))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_7142))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_7144))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_7238) .cse6 v_ArrVal_7143) .cse7 v_ArrVal_7145) .cse8 v_ArrVal_7146) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_7147) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2024-11-28 04:54:56,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:54:56,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039671523] [2024-11-28 04:54:56,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039671523] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:56,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [365272665] [2024-11-28 04:54:56,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:56,332 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:54:56,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:54:56,335 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:54:56,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-28 04:55:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:14,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 119 conjuncts are in the unsatisfiable core [2024-11-28 04:55:14,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:14,529 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 04:55:16,272 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:55:16,273 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 04:55:16,337 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 04:55:16,435 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 04:55:16,532 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 04:55:17,027 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 04:55:17,060 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 04:55:23,540 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:23,540 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 04:55:23,635 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 04:55:24,301 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:24,301 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 04:55:24,368 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 04:55:24,859 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:24,860 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 04:55:24,925 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 04:55:25,418 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:25,418 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 04:55:25,483 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 04:55:25,712 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 04:55:25,776 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 04:55:25,778 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 04:55:25,778 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:55:26,105 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7725 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7726) |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 04:55:26,226 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7725 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:55:26,438 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7725 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7724 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7723 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7723))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7724) .cse0 v_ArrVal_7726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_7725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7724 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7723 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7724) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7723) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse3 (_ bv20 32)) (bvadd .cse3 (_ bv24 32))))))) is different from false [2024-11-28 04:55:26,568 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7725 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7724 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7723 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7723))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7724) .cse1 v_ArrVal_7726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7724 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7723 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7724) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7723) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7726) |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 04:55:26,780 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7724 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7723 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7722 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7721 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7721))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7722) .cse1 v_ArrVal_7724) (select (select (store .cse2 .cse1 v_ArrVal_7723) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7726))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7725 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7724 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7723 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7722 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7721 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7721))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_7723))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7722) .cse4 v_ArrVal_7724) .cse5 v_ArrVal_7726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_7725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-28 04:55:26,933 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7724 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7723 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7722 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7721 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7721))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7722) .cse2 v_ArrVal_7724) (select (select (store .cse3 .cse2 v_ArrVal_7723) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_7726))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7725 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7724 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7723 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7722 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7721 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7721))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_7723))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7722) .cse5 v_ArrVal_7724) .cse6 v_ArrVal_7726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse7 .cse6 v_ArrVal_7725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) is different from false [2024-11-28 04:55:36,079 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7818 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7817 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7724 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7723 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7722 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7721 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_7818))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_7721))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_7817) .cse1 v_ArrVal_7722) .cse2 v_ArrVal_7724) (select (select (store .cse3 .cse2 v_ArrVal_7723) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_7726))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_7818 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7817 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7725 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7724 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7723 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7722 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7721 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_7818))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_7721))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_7723))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_7817) .cse6 v_ArrVal_7722) .cse7 v_ArrVal_7724) .cse8 v_ArrVal_7726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) (_ bv24 32)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_7725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2024-11-28 04:55:36,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [365272665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:55:36,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:55:36,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2024-11-28 04:55:36,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207000705] [2024-11-28 04:55:36,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:55:36,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:55:36,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:55:36,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:55:36,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=160, Unknown=14, NotChecked=518, Total=756 [2024-11-28 04:55:36,127 INFO L87 Difference]: Start difference. First operand 2225 states and 2862 transitions. Second operand has 12 states, 10 states have (on average 8.0) internal successors, (80), 12 states have internal predecessors, (80), 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 04:57:39,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:39,376 INFO L93 Difference]: Finished difference Result 2224 states and 2859 transitions. [2024-11-28 04:57:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:57:39,377 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 12 states have internal predecessors, (80), 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 121 [2024-11-28 04:57:39,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:39,383 INFO L225 Difference]: With dead ends: 2224 [2024-11-28 04:57:39,383 INFO L226 Difference]: Without dead ends: 2224 [2024-11-28 04:57:39,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 237 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=14, NotChecked=714, Total=1190 [2024-11-28 04:57:39,384 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 917 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 4615 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 4626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:39,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 3158 Invalid, 4626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 4615 Invalid, 0 Unknown, 0 Unchecked, 119.7s Time] [2024-11-28 04:57:39,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2024-11-28 04:57:39,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2224. [2024-11-28 04:57:39,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2224 states, 1723 states have (on average 1.6273940800928612) internal successors, (2804), 2203 states have internal predecessors, (2804), 25 states have call successors, (25), 7 states have call predecessors, (25), 9 states have return successors, (30), 14 states have call predecessors, (30), 25 states have call successors, (30) [2024-11-28 04:57:39,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 2859 transitions. [2024-11-28 04:57:39,418 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 2859 transitions. Word has length 121 [2024-11-28 04:57:39,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:39,418 INFO L471 AbstractCegarLoop]: Abstraction has 2224 states and 2859 transitions. [2024-11-28 04:57:39,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 12 states have internal predecessors, (80), 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 04:57:39,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 2859 transitions. [2024-11-28 04:57:39,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 04:57:39,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:39,420 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 04:57:39,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-11-28 04:57:39,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 04:57:39,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:39,822 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr86REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-28 04:57:39,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:39,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1110289678, now seen corresponding path program 1 times [2024-11-28 04:57:39,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:57:39,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900328261] [2024-11-28 04:57:39,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:39,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:39,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:39,826 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:39,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:57:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:40,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 04:57:40,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:43,534 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:57:43,534 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 04:57:43,847 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 04:57:51,697 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:57:51,698 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 04:57:53,245 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:57:53,245 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 04:57:54,421 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:57:54,421 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 04:57:55,643 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:57:55,643 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 04:57:56,912 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:57:56,912 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 04:57:57,151 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 04:57:58,188 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 04:57:58,188 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 04:57:58,238 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 04:57:58,238 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:00,575 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_8272) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:58:00,733 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8271))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:58:00,843 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8271))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:58:01,004 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8270 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_8270))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8271)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:58:01,123 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8270 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8270))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8271)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:58:01,292 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8270 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8269 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8269))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8270)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8271)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:58:01,411 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8270 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8269 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8269))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8270)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8271)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:58:04,747 INFO L349 Elim1Store]: treesize reduction 7, result has 96.5 percent of original size [2024-11-28 04:58:04,748 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 04:58:04,850 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8319 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8270 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8269 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_8319))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8269)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8270)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8271)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem32#1.base|)) is different from false [2024-11-28 04:58:04,877 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:58:04,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900328261] [2024-11-28 04:58:04,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900328261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:04,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1607247088] [2024-11-28 04:58:04,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:04,877 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:58:04,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:58:04,879 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:58:04,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b38669fe-5aed-4f2a-8cef-dbcf2a516582/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-28 04:58:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:16,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-28 04:58:16,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:17,239 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-28 04:58:17,239 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 14 treesize of output 20 [2024-11-28 04:58:23,809 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-11-28 04:58:23,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 43 [2024-11-28 04:58:24,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 04:58:28,215 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 34 treesize of output 16 [2024-11-28 04:58:49,511 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:58:49,511 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 54 treesize of output 51 [2024-11-28 04:58:52,564 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:58:52,564 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 54 treesize of output 51 [2024-11-28 04:58:54,716 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:58:54,717 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 54 treesize of output 51 [2024-11-28 04:58:56,816 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:58:56,817 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 54 treesize of output 51 [2024-11-28 04:58:59,083 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:58:59,084 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 54 treesize of output 51 [2024-11-28 04:58:59,685 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 43 treesize of output 19 [2024-11-28 04:59:02,452 INFO L349 Elim1Store]: treesize reduction 82, result has 29.3 percent of original size [2024-11-28 04:59:02,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 35 treesize of output 52 [2024-11-28 04:59:02,650 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 04:59:02,650 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:04,724 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8774 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8774))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:59:04,836 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8774 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8774))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:59:05,000 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8773 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_8773))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8774)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 04:59:05,132 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8773 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8773))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8774)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:59:05,309 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8772 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8772))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8773)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8774)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:59:05,429 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8772 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8772))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8773)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8774)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8272)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 04:59:09,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1607247088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:09,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:59:09,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 27 [2024-11-28 04:59:09,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263760747] [2024-11-28 04:59:09,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:59:09,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:59:09,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:09,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:59:09,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=791, Unknown=23, NotChecked=994, Total=1980 [2024-11-28 04:59:09,590 INFO L87 Difference]: Start difference. First operand 2224 states and 2859 transitions. Second operand has 28 states, 25 states have (on average 6.48) internal successors, (162), 26 states have internal predecessors, (162), 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)