./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.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_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/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_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/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_b53cad43-c28b-4921-88d2-d6f21526e221/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 da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:28:42,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:28:42,772 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 23:28:42,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:28:42,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:28:42,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:28:42,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:28:42,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:28:42,830 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:28:42,830 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:28:42,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:28:42,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:28:42,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:28:42,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:28:42,832 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:28:42,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:28:42,833 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:28:42,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:28:42,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:28:42,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:28:42,833 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 23:28:42,833 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 23:28:42,833 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 23:28:42,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:28:42,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:28:42,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:28:42,834 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:28:42,835 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:28:42,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:28:42,835 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:28:42,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:28:42,836 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:28:42,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:28:42,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:42,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:28:42,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:28:42,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:28:42,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:28:42,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:42,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:28:42,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:28:42,837 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:28:42,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:28:42,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:28:42,838 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:28:42,838 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:28:42,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:28:42,838 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_b53cad43-c28b-4921-88d2-d6f21526e221/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 -> da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 [2024-11-27 23:28:43,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:28:43,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:28:43,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:28:43,198 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:28:43,199 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:28:43,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2024-11-27 23:28:46,643 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/data/ca6f539d3/6387c34774ed401a8f61a3619e10aafa/FLAG0969e23fe [2024-11-27 23:28:47,123 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:28:47,123 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2024-11-27 23:28:47,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/data/ca6f539d3/6387c34774ed401a8f61a3619e10aafa/FLAG0969e23fe [2024-11-27 23:28:47,167 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/data/ca6f539d3/6387c34774ed401a8f61a3619e10aafa [2024-11-27 23:28:47,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:28:47,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:28:47,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:28:47,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:28:47,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:28:47,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:28:47" (1/1) ... [2024-11-27 23:28:47,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce91d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:47, skipping insertion in model container [2024-11-27 23:28:47,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:28:47" (1/1) ... [2024-11-27 23:28:47,255 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:28:47,912 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:47,982 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:47,987 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:47,993 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,002 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,046 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,046 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,050 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,050 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,053 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,056 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,058 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,060 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,061 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,067 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:48,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:28:48,091 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) [2024-11-27 23:28:48,091 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1223bfcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:48, skipping insertion in model container [2024-11-27 23:28:48,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:28:48,092 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-27 23:28:48,095 INFO L158 Benchmark]: Toolchain (without parser) took 921.67ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 70.5MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:28:48,095 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 100.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:28:48,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 918.61ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 70.5MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:28:48,099 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 100.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 918.61ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 70.5MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 833]: 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_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/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_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/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_b53cad43-c28b-4921-88d2-d6f21526e221/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 da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:28:51,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:28:51,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-27 23:28:51,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:28:51,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:28:51,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:28:51,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:28:51,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:28:51,264 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:28:51,264 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:28:51,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:28:51,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:28:51,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:28:51,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:28:51,265 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:28:51,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:28:51,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:28:51,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:28:51,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:28:51,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:28:51,266 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 23:28:51,266 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 23:28:51,266 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 23:28:51,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:28:51,267 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:28:51,267 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 23:28:51,267 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 23:28:51,267 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:28:51,267 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:28:51,267 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:28:51,271 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:28:51,272 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:28:51,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:28:51,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:28:51,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:28:51,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:51,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:28:51,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:28:51,273 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:28:51,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:28:51,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:51,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:28:51,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:28:51,273 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 23:28:51,273 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 23:28:51,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:28:51,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:28:51,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:28:51,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:28:51,274 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_b53cad43-c28b-4921-88d2-d6f21526e221/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 -> da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 [2024-11-27 23:28:51,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:28:51,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:28:51,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:28:51,617 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:28:51,618 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:28:51,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2024-11-27 23:28:55,046 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/data/d527f13a3/211b8396afa044a5bc1f60a4166cf4c2/FLAGc21658428 [2024-11-27 23:28:55,593 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:28:55,598 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2024-11-27 23:28:55,626 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/data/d527f13a3/211b8396afa044a5bc1f60a4166cf4c2/FLAGc21658428 [2024-11-27 23:28:55,655 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/data/d527f13a3/211b8396afa044a5bc1f60a4166cf4c2 [2024-11-27 23:28:55,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:28:55,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:28:55,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:28:55,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:28:55,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:28:55,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:28:55" (1/1) ... [2024-11-27 23:28:55,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae0ab88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:55, skipping insertion in model container [2024-11-27 23:28:55,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:28:55" (1/1) ... [2024-11-27 23:28:55,757 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:28:56,370 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,422 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,434 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,449 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,459 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,507 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,507 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,512 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,512 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,515 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,519 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,521 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,523 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,524 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,531 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:28:56,557 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-27 23:28:56,581 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:28:56,640 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,664 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,667 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,671 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,680 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,757 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,760 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,764 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,767 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,770 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,780 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,782 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,783 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,784 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,793 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:28:56,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:28:56,813 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:28:56,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:28:57,020 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:28:57,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57 WrapperNode [2024-11-27 23:28:57,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:28:57,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:28:57,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:28:57,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:28:57,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,148 INFO L138 Inliner]: procedures = 211, calls = 280, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1047 [2024-11-27 23:28:57,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:28:57,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:28:57,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:28:57,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:28:57,167 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,188 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,315 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [2, 220, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-27 23:28:57,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,414 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:28:57,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:28:57,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:28:57,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:28:57,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (1/1) ... [2024-11-27 23:28:57,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:57,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:57,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:28:57,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:28:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-27 23:28:57,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-27 23:28:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-27 23:28:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-27 23:28:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-27 23:28:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-27 23:28:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-27 23:28:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-27 23:28:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-27 23:28:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-27 23:28:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-27 23:28:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-27 23:28:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-27 23:28:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-27 23:28:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:28:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 23:28:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 23:28:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 23:28:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:28:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-27 23:28:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-27 23:28:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-27 23:28:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 23:28:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 23:28:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-27 23:28:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:28:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:28:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:28:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:28:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 23:28:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 23:28:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 23:28:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:28:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:28:57,821 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:28:57,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:28:57,849 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 23:28:57,889 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 23:28:57,927 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 23:29:04,241 INFO L? ?]: Removed 1100 outVars from TransFormulas that were not future-live. [2024-11-27 23:29:04,241 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:29:04,290 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:29:04,290 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-27 23:29:04,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:29:04 BoogieIcfgContainer [2024-11-27 23:29:04,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:29:04,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:29:04,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:29:04,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:29:04,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:28:55" (1/3) ... [2024-11-27 23:29:04,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a28d59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:29:04, skipping insertion in model container [2024-11-27 23:29:04,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:57" (2/3) ... [2024-11-27 23:29:04,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a28d59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:29:04, skipping insertion in model container [2024-11-27 23:29:04,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:29:04" (3/3) ... [2024-11-27 23:29:04,303 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test2-2.i [2024-11-27 23:29:04,321 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:29:04,324 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test2-2.i that has 6 procedures, 1093 locations, 1 initial locations, 38 loop locations, and 529 error locations. [2024-11-27 23:29:04,391 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:29:04,406 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;@7e7c1e82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:29:04,406 INFO L334 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2024-11-27 23:29:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 1083 states, 543 states have (on average 2.2099447513812156) internal successors, (1200), 1076 states have internal predecessors, (1200), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 23:29:04,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-27 23:29:04,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:04,423 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-27 23:29:04,424 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:04,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:04,433 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-27 23:29:04,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:04,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1904153810] [2024-11-27 23:29:04,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:04,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:04,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:04,451 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:04,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:29:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:04,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:29:04,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:04,720 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 [2024-11-27 23:29:04,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:04,748 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:04,749 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:04,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904153810] [2024-11-27 23:29:04,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904153810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:04,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:04,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:04,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63998856] [2024-11-27 23:29:04,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:04,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:04,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:04,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:04,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:04,805 INFO L87 Difference]: Start difference. First operand has 1083 states, 543 states have (on average 2.2099447513812156) internal successors, (1200), 1076 states have internal predecessors, (1200), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:07,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:07,474 INFO L93 Difference]: Finished difference Result 1248 states and 1325 transitions. [2024-11-27 23:29:07,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:07,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-27 23:29:07,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:07,500 INFO L225 Difference]: With dead ends: 1248 [2024-11-27 23:29:07,500 INFO L226 Difference]: Without dead ends: 1246 [2024-11-27 23:29:07,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:07,506 INFO L435 NwaCegarLoop]: 660 mSDtfsCounter, 984 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:07,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 815 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 23:29:07,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2024-11-27 23:29:07,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1067. [2024-11-27 23:29:07,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 545 states have (on average 2.0495412844036696) internal successors, (1117), 1060 states have internal predecessors, (1117), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 23:29:07,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1135 transitions. [2024-11-27 23:29:07,598 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1135 transitions. Word has length 3 [2024-11-27 23:29:07,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:07,599 INFO L471 AbstractCegarLoop]: Abstraction has 1067 states and 1135 transitions. [2024-11-27 23:29:07,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:07,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1135 transitions. [2024-11-27 23:29:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-27 23:29:07,600 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:07,600 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-27 23:29:07,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:29:07,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:07,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:07,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:07,802 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-27 23:29:07,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:07,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963711831] [2024-11-27 23:29:07,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:07,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:07,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:07,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:07,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:29:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:07,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:29:07,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:07,971 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 [2024-11-27 23:29:07,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:07,988 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:07,988 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:07,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963711831] [2024-11-27 23:29:07,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963711831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:07,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:07,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:07,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060912138] [2024-11-27 23:29:07,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:07,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:07,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:07,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:07,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:07,993 INFO L87 Difference]: Start difference. First operand 1067 states and 1135 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:11,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:11,407 INFO L93 Difference]: Finished difference Result 1494 states and 1605 transitions. [2024-11-27 23:29:11,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:11,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-27 23:29:11,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:11,415 INFO L225 Difference]: With dead ends: 1494 [2024-11-27 23:29:11,415 INFO L226 Difference]: Without dead ends: 1494 [2024-11-27 23:29:11,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:11,418 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 459 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:11,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1535 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-27 23:29:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2024-11-27 23:29:11,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1205. [2024-11-27 23:29:11,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 679 states have (on average 2.007363770250368) internal successors, (1363), 1198 states have internal predecessors, (1363), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:29:11,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1391 transitions. [2024-11-27 23:29:11,543 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1391 transitions. Word has length 3 [2024-11-27 23:29:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:11,543 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1391 transitions. [2024-11-27 23:29:11,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:11,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1391 transitions. [2024-11-27 23:29:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-27 23:29:11,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:11,544 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:11,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:29:11,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:11,748 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:11,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:11,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1329215633, now seen corresponding path program 1 times [2024-11-27 23:29:11,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:11,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552903943] [2024-11-27 23:29:11,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:11,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:11,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:11,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:11,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:29:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:11,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:29:11,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:11,919 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 [2024-11-27 23:29:12,027 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-27 23:29:12,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2024-11-27 23:29:12,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:12,160 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:12,161 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:12,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552903943] [2024-11-27 23:29:12,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552903943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:12,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:12,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:29:12,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182143335] [2024-11-27 23:29:12,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:12,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:12,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:12,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:12,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:12,163 INFO L87 Difference]: Start difference. First operand 1205 states and 1391 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:18,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:18,121 INFO L93 Difference]: Finished difference Result 2207 states and 2377 transitions. [2024-11-27 23:29:18,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:18,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-27 23:29:18,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:18,131 INFO L225 Difference]: With dead ends: 2207 [2024-11-27 23:29:18,131 INFO L226 Difference]: Without dead ends: 2207 [2024-11-27 23:29:18,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:18,134 INFO L435 NwaCegarLoop]: 1074 mSDtfsCounter, 1212 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:18,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 2268 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-27 23:29:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2024-11-27 23:29:18,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 1354. [2024-11-27 23:29:18,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 828 states have (on average 1.9927536231884058) internal successors, (1650), 1347 states have internal predecessors, (1650), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:29:18,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1678 transitions. [2024-11-27 23:29:18,187 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1678 transitions. Word has length 8 [2024-11-27 23:29:18,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:18,188 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 1678 transitions. [2024-11-27 23:29:18,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:18,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1678 transitions. [2024-11-27 23:29:18,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 23:29:18,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:18,189 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:18,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:18,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:18,389 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:18,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:18,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988334, now seen corresponding path program 1 times [2024-11-27 23:29:18,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:18,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195114273] [2024-11-27 23:29:18,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:18,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:18,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:18,394 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:18,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:29:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:18,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:29:18,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:18,550 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 [2024-11-27 23:29:18,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:18,571 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:18,572 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:18,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195114273] [2024-11-27 23:29:18,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195114273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:18,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:18,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:18,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192133737] [2024-11-27 23:29:18,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:18,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:18,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:18,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:18,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:18,575 INFO L87 Difference]: Start difference. First operand 1354 states and 1678 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:20,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:20,830 INFO L93 Difference]: Finished difference Result 1535 states and 1880 transitions. [2024-11-27 23:29:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:20,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 23:29:20,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:20,838 INFO L225 Difference]: With dead ends: 1535 [2024-11-27 23:29:20,838 INFO L226 Difference]: Without dead ends: 1535 [2024-11-27 23:29:20,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:20,841 INFO L435 NwaCegarLoop]: 930 mSDtfsCounter, 776 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:20,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1210 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 23:29:20,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-11-27 23:29:20,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1307. [2024-11-27 23:29:20,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 828 states have (on average 1.922705314009662) internal successors, (1592), 1300 states have internal predecessors, (1592), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:29:20,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1620 transitions. [2024-11-27 23:29:20,884 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1620 transitions. Word has length 9 [2024-11-27 23:29:20,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:20,884 INFO L471 AbstractCegarLoop]: Abstraction has 1307 states and 1620 transitions. [2024-11-27 23:29:20,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:20,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1620 transitions. [2024-11-27 23:29:20,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 23:29:20,885 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:20,885 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:20,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:29:21,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:21,086 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:21,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:21,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988333, now seen corresponding path program 1 times [2024-11-27 23:29:21,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:21,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204915384] [2024-11-27 23:29:21,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:21,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:21,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:21,089 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:21,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:29:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:21,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:29:21,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:21,237 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 [2024-11-27 23:29:21,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:21,273 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:21,273 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:21,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204915384] [2024-11-27 23:29:21,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204915384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:21,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:21,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:21,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100995233] [2024-11-27 23:29:21,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:21,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:21,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:21,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:21,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:21,275 INFO L87 Difference]: Start difference. First operand 1307 states and 1620 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:24,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:24,073 INFO L93 Difference]: Finished difference Result 1759 states and 2214 transitions. [2024-11-27 23:29:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:24,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 23:29:24,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:24,080 INFO L225 Difference]: With dead ends: 1759 [2024-11-27 23:29:24,080 INFO L226 Difference]: Without dead ends: 1759 [2024-11-27 23:29:24,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:24,081 INFO L435 NwaCegarLoop]: 1105 mSDtfsCounter, 527 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:24,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1554 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-27 23:29:24,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2024-11-27 23:29:24,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1334. [2024-11-27 23:29:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 865 states have (on average 1.9017341040462428) internal successors, (1645), 1327 states have internal predecessors, (1645), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:29:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1673 transitions. [2024-11-27 23:29:24,121 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1673 transitions. Word has length 9 [2024-11-27 23:29:24,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:24,122 INFO L471 AbstractCegarLoop]: Abstraction has 1334 states and 1673 transitions. [2024-11-27 23:29:24,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1673 transitions. [2024-11-27 23:29:24,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-27 23:29:24,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:24,122 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:24,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 23:29:24,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:24,323 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr422REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:24,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:24,323 INFO L85 PathProgramCache]: Analyzing trace with hash 2051350030, now seen corresponding path program 1 times [2024-11-27 23:29:24,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:24,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852741224] [2024-11-27 23:29:24,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:24,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:24,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:24,325 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:24,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:29:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:24,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:29:24,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:24,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:24,537 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:24,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:24,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852741224] [2024-11-27 23:29:24,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852741224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:24,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:24,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:29:24,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744174565] [2024-11-27 23:29:24,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:24,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:24,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:24,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:24,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:24,540 INFO L87 Difference]: Start difference. First operand 1334 states and 1673 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) 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) [2024-11-27 23:29:24,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:24,899 INFO L93 Difference]: Finished difference Result 1602 states and 1847 transitions. [2024-11-27 23:29:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:24,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) 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 [2024-11-27 23:29:24,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:24,905 INFO L225 Difference]: With dead ends: 1602 [2024-11-27 23:29:24,905 INFO L226 Difference]: Without dead ends: 1602 [2024-11-27 23:29:24,906 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 [2024-11-27 23:29:24,906 INFO L435 NwaCegarLoop]: 1137 mSDtfsCounter, 484 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:24,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 2121 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:29:24,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2024-11-27 23:29:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1332. [2024-11-27 23:29:24,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 858 states have (on average 1.8752913752913754) internal successors, (1609), 1325 states have internal predecessors, (1609), 20 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 6 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-27 23:29:24,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1647 transitions. [2024-11-27 23:29:24,937 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1647 transitions. Word has length 11 [2024-11-27 23:29:24,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:24,938 INFO L471 AbstractCegarLoop]: Abstraction has 1332 states and 1647 transitions. [2024-11-27 23:29:24,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) 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) [2024-11-27 23:29:24,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1647 transitions. [2024-11-27 23:29:24,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-27 23:29:24,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:24,939 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:24,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:29:25,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:25,146 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:25,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:25,147 INFO L85 PathProgramCache]: Analyzing trace with hash -549267329, now seen corresponding path program 1 times [2024-11-27 23:29:25,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:25,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175544720] [2024-11-27 23:29:25,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:25,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:25,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:25,150 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:25,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:29:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:25,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:29:25,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:25,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:25,356 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:25,357 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:25,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175544720] [2024-11-27 23:29:25,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175544720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:25,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:25,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:29:25,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085485075] [2024-11-27 23:29:25,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:25,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:25,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:25,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:25,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:25,358 INFO L87 Difference]: Start difference. First operand 1332 states and 1647 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-27 23:29:28,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:28,384 INFO L93 Difference]: Finished difference Result 1500 states and 1778 transitions. [2024-11-27 23:29:28,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:28,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-11-27 23:29:28,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:28,388 INFO L225 Difference]: With dead ends: 1500 [2024-11-27 23:29:28,389 INFO L226 Difference]: Without dead ends: 1500 [2024-11-27 23:29:28,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:28,389 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 982 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:28,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 1273 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 23:29:28,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2024-11-27 23:29:28,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1309. [2024-11-27 23:29:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 858 states have (on average 1.794871794871795) internal successors, (1540), 1302 states have internal predecessors, (1540), 20 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 6 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-27 23:29:28,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1578 transitions. [2024-11-27 23:29:28,419 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1578 transitions. Word has length 13 [2024-11-27 23:29:28,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:28,419 INFO L471 AbstractCegarLoop]: Abstraction has 1309 states and 1578 transitions. [2024-11-27 23:29:28,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-27 23:29:28,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1578 transitions. [2024-11-27 23:29:28,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-27 23:29:28,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:28,420 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:28,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:28,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:28,621 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr331REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:28,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:28,621 INFO L85 PathProgramCache]: Analyzing trace with hash -549267328, now seen corresponding path program 1 times [2024-11-27 23:29:28,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:28,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878466768] [2024-11-27 23:29:28,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:28,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:28,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:28,626 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:28,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:29:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:28,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:29:28,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:28,801 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 [2024-11-27 23:29:28,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:28,932 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:28,932 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:28,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878466768] [2024-11-27 23:29:28,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878466768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:28,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:28,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:29:28,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761740040] [2024-11-27 23:29:28,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:28,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:28,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:28,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:28,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:28,935 INFO L87 Difference]: Start difference. First operand 1309 states and 1578 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-27 23:29:32,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:32,677 INFO L93 Difference]: Finished difference Result 1504 states and 1748 transitions. [2024-11-27 23:29:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:32,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-11-27 23:29:32,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:32,682 INFO L225 Difference]: With dead ends: 1504 [2024-11-27 23:29:32,683 INFO L226 Difference]: Without dead ends: 1504 [2024-11-27 23:29:32,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:32,684 INFO L435 NwaCegarLoop]: 922 mSDtfsCounter, 352 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:32,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1981 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-27 23:29:32,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2024-11-27 23:29:32,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1290. [2024-11-27 23:29:32,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 839 states have (on average 1.7854588796185935) internal successors, (1498), 1283 states have internal predecessors, (1498), 20 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 6 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-27 23:29:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1536 transitions. [2024-11-27 23:29:32,715 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1536 transitions. Word has length 13 [2024-11-27 23:29:32,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:32,715 INFO L471 AbstractCegarLoop]: Abstraction has 1290 states and 1536 transitions. [2024-11-27 23:29:32,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-27 23:29:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1536 transitions. [2024-11-27 23:29:32,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 23:29:32,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:32,717 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:32,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 23:29:32,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:32,921 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr527ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:32,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1313719467, now seen corresponding path program 1 times [2024-11-27 23:29:32,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:32,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905424547] [2024-11-27 23:29:32,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:32,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:32,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:32,924 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:32,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:29:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:33,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:29:33,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:33,083 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 23:29:33,084 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 23:29:33,084 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 23:29:33,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-27 23:29:33,159 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:29:33,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-27 23:29:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:33,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:33,179 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:33,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905424547] [2024-11-27 23:29:33,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905424547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:33,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:33,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:29:33,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70838] [2024-11-27 23:29:33,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:33,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:33,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:33,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:33,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:33,181 INFO L87 Difference]: Start difference. First operand 1290 states and 1536 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-27 23:29:33,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:33,874 INFO L93 Difference]: Finished difference Result 2059 states and 2310 transitions. [2024-11-27 23:29:33,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:33,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-27 23:29:33,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:33,881 INFO L225 Difference]: With dead ends: 2059 [2024-11-27 23:29:33,882 INFO L226 Difference]: Without dead ends: 2059 [2024-11-27 23:29:33,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:33,882 INFO L435 NwaCegarLoop]: 1002 mSDtfsCounter, 954 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 2987 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:33,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 2987 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:29:33,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2024-11-27 23:29:33,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 1210. [2024-11-27 23:29:33,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 764 states have (on average 1.831151832460733) internal successors, (1399), 1203 states have internal predecessors, (1399), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:29:33,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1427 transitions. [2024-11-27 23:29:33,910 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1427 transitions. Word has length 14 [2024-11-27 23:29:33,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:33,910 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 1427 transitions. [2024-11-27 23:29:33,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-27 23:29:33,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1427 transitions. [2024-11-27 23:29:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 23:29:33,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:33,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:33,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:34,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:34,112 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:34,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:34,113 INFO L85 PathProgramCache]: Analyzing trace with hash 495195041, now seen corresponding path program 1 times [2024-11-27 23:29:34,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:34,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1944948876] [2024-11-27 23:29:34,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:34,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:34,116 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:34,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:29:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:34,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:29:34,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:34,298 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 [2024-11-27 23:29:34,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:34,356 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:34,357 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:34,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944948876] [2024-11-27 23:29:34,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944948876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:34,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:34,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:29:34,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430864106] [2024-11-27 23:29:34,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:34,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:34,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:34,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:34,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:34,358 INFO L87 Difference]: Start difference. First operand 1210 states and 1427 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:36,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:36,824 INFO L93 Difference]: Finished difference Result 1195 states and 1389 transitions. [2024-11-27 23:29:36,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:36,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 23:29:36,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:36,826 INFO L225 Difference]: With dead ends: 1195 [2024-11-27 23:29:36,826 INFO L226 Difference]: Without dead ends: 1195 [2024-11-27 23:29:36,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:36,827 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 800 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:36,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1237 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 23:29:36,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2024-11-27 23:29:36,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1187. [2024-11-27 23:29:36,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 764 states have (on average 1.7709424083769634) internal successors, (1353), 1180 states have internal predecessors, (1353), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:29:36,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1381 transitions. [2024-11-27 23:29:36,846 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1381 transitions. Word has length 19 [2024-11-27 23:29:36,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:36,846 INFO L471 AbstractCegarLoop]: Abstraction has 1187 states and 1381 transitions. [2024-11-27 23:29:36,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:36,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1381 transitions. [2024-11-27 23:29:36,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 23:29:36,847 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:36,847 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:36,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:37,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:37,048 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:37,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash 495195042, now seen corresponding path program 1 times [2024-11-27 23:29:37,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:37,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825201155] [2024-11-27 23:29:37,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:37,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:37,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:37,051 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:37,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:29:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:37,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:29:37,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:37,241 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 [2024-11-27 23:29:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:37,378 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:37,378 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:37,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825201155] [2024-11-27 23:29:37,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825201155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:37,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:37,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:29:37,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202305595] [2024-11-27 23:29:37,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:37,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:37,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:37,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:37,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:37,380 INFO L87 Difference]: Start difference. First operand 1187 states and 1381 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:41,620 INFO L93 Difference]: Finished difference Result 1680 states and 1950 transitions. [2024-11-27 23:29:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:41,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 23:29:41,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:41,625 INFO L225 Difference]: With dead ends: 1680 [2024-11-27 23:29:41,625 INFO L226 Difference]: Without dead ends: 1680 [2024-11-27 23:29:41,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:41,626 INFO L435 NwaCegarLoop]: 1125 mSDtfsCounter, 625 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:41,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2244 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-27 23:29:41,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2024-11-27 23:29:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1303. [2024-11-27 23:29:41,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 880 states have (on average 1.696590909090909) internal successors, (1493), 1296 states have internal predecessors, (1493), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:29:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1521 transitions. [2024-11-27 23:29:41,649 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1521 transitions. Word has length 19 [2024-11-27 23:29:41,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:41,649 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1521 transitions. [2024-11-27 23:29:41,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:41,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1521 transitions. [2024-11-27 23:29:41,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 23:29:41,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:41,651 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:41,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 23:29:41,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:41,852 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:41,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:41,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1991006148, now seen corresponding path program 1 times [2024-11-27 23:29:41,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:41,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1746973468] [2024-11-27 23:29:41,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:41,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:41,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:41,855 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:41,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 23:29:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:42,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:29:42,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:42,137 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 [2024-11-27 23:29:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:42,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:43,200 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:43,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746973468] [2024-11-27 23:29:43,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746973468] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:43,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:29:43,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-27 23:29:43,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161989032] [2024-11-27 23:29:43,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:43,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:29:43,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:43,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:29:43,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:43,202 INFO L87 Difference]: Start difference. First operand 1303 states and 1521 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:54,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:54,848 INFO L93 Difference]: Finished difference Result 2042 states and 2446 transitions. [2024-11-27 23:29:54,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:29:54,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-27 23:29:54,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:54,855 INFO L225 Difference]: With dead ends: 2042 [2024-11-27 23:29:54,855 INFO L226 Difference]: Without dead ends: 2042 [2024-11-27 23:29:54,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:29:54,856 INFO L435 NwaCegarLoop]: 1152 mSDtfsCounter, 1283 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 2538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:54,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 3472 Invalid, 2538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2024-11-27 23:29:54,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2024-11-27 23:29:54,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 1469. [2024-11-27 23:29:54,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1046 states have (on average 1.6510516252390057) internal successors, (1727), 1462 states have internal predecessors, (1727), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:29:54,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1755 transitions. [2024-11-27 23:29:54,885 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1755 transitions. Word has length 38 [2024-11-27 23:29:54,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:54,886 INFO L471 AbstractCegarLoop]: Abstraction has 1469 states and 1755 transitions. [2024-11-27 23:29:54,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:54,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1755 transitions. [2024-11-27 23:29:54,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-27 23:29:54,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:54,887 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:54,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:55,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:55,088 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:55,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:55,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1728836185, now seen corresponding path program 1 times [2024-11-27 23:29:55,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:55,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230736755] [2024-11-27 23:29:55,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:55,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:55,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:55,091 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:55,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 23:29:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:55,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:29:55,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:55,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:55,412 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:55,412 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:55,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230736755] [2024-11-27 23:29:55,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230736755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:55,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:55,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:29:55,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372615471] [2024-11-27 23:29:55,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:55,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:55,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:55,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:55,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:55,413 INFO L87 Difference]: Start difference. First operand 1469 states and 1755 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:55,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:55,550 INFO L93 Difference]: Finished difference Result 1154 states and 1315 transitions. [2024-11-27 23:29:55,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:29:55,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-27 23:29:55,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:55,555 INFO L225 Difference]: With dead ends: 1154 [2024-11-27 23:29:55,555 INFO L226 Difference]: Without dead ends: 1154 [2024-11-27 23:29:55,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:55,556 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 56 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2807 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 [2024-11-27 23:29:55,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2807 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:55,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2024-11-27 23:29:55,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1152. [2024-11-27 23:29:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 752 states have (on average 1.7087765957446808) internal successors, (1285), 1145 states have internal predecessors, (1285), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:29:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1313 transitions. [2024-11-27 23:29:55,575 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1313 transitions. Word has length 54 [2024-11-27 23:29:55,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:55,575 INFO L471 AbstractCegarLoop]: Abstraction has 1152 states and 1313 transitions. [2024-11-27 23:29:55,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:55,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1313 transitions. [2024-11-27 23:29:55,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-27 23:29:55,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:55,577 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:55,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 23:29:55,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:55,778 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:29:55,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:55,778 INFO L85 PathProgramCache]: Analyzing trace with hash 199933403, now seen corresponding path program 1 times [2024-11-27 23:29:55,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:29:55,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41489239] [2024-11-27 23:29:55,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:55,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:55,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:55,781 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:55,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 23:29:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:56,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:29:56,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:56,105 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 [2024-11-27 23:29:56,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:29:56,852 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 [2024-11-27 23:29:56,873 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:29:56,873 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 [2024-11-27 23:29:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:56,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:56,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:56,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41489239] [2024-11-27 23:29:56,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41489239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:56,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:56,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:29:56,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771640345] [2024-11-27 23:29:56,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:56,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:29:56,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:56,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:29:56,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:56,884 INFO L87 Difference]: Start difference. First operand 1152 states and 1313 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:00,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:00,022 INFO L93 Difference]: Finished difference Result 1114 states and 1275 transitions. [2024-11-27 23:30:00,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:00,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-27 23:30:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:00,026 INFO L225 Difference]: With dead ends: 1114 [2024-11-27 23:30:00,026 INFO L226 Difference]: Without dead ends: 1114 [2024-11-27 23:30:00,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:00,026 INFO L435 NwaCegarLoop]: 501 mSDtfsCounter, 1327 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:00,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 832 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-27 23:30:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2024-11-27 23:30:00,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1077. [2024-11-27 23:30:00,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 715 states have (on average 1.6405594405594406) internal successors, (1173), 1070 states have internal predecessors, (1173), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:30:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1201 transitions. [2024-11-27 23:30:00,044 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1201 transitions. Word has length 62 [2024-11-27 23:30:00,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:00,044 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1201 transitions. [2024-11-27 23:30:00,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:00,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1201 transitions. [2024-11-27 23:30:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 23:30:00,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:00,046 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:00,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 23:30:00,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:00,246 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:30:00,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:00,247 INFO L85 PathProgramCache]: Analyzing trace with hash -543313183, now seen corresponding path program 1 times [2024-11-27 23:30:00,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:30:00,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698758856] [2024-11-27 23:30:00,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:00,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:00,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:00,249 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:00,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 23:30:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:00,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:30:00,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:00,539 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 [2024-11-27 23:30:00,581 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 [2024-11-27 23:30:00,615 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 [2024-11-27 23:30:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:00,633 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:00,633 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:30:00,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698758856] [2024-11-27 23:30:00,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698758856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:00,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:00,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:30:00,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440190425] [2024-11-27 23:30:00,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:00,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:00,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:30:00,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:00,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:00,634 INFO L87 Difference]: Start difference. First operand 1077 states and 1201 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:03,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:03,678 INFO L93 Difference]: Finished difference Result 1076 states and 1200 transitions. [2024-11-27 23:30:03,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:30:03,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-27 23:30:03,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:03,681 INFO L225 Difference]: With dead ends: 1076 [2024-11-27 23:30:03,682 INFO L226 Difference]: Without dead ends: 1076 [2024-11-27 23:30:03,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:03,683 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 2 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:03,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2498 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 23:30:03,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-11-27 23:30:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1076. [2024-11-27 23:30:03,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 715 states have (on average 1.6391608391608392) internal successors, (1172), 1069 states have internal predecessors, (1172), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:30:03,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1200 transitions. [2024-11-27 23:30:03,694 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1200 transitions. Word has length 67 [2024-11-27 23:30:03,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:03,695 INFO L471 AbstractCegarLoop]: Abstraction has 1076 states and 1200 transitions. [2024-11-27 23:30:03,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:03,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1200 transitions. [2024-11-27 23:30:03,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 23:30:03,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:03,698 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:03,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 23:30:03,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:03,898 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:30:03,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:03,899 INFO L85 PathProgramCache]: Analyzing trace with hash -543313182, now seen corresponding path program 1 times [2024-11-27 23:30:03,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:30:03,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305331945] [2024-11-27 23:30:03,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:03,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:03,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:03,901 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:03,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 23:30:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:04,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:30:04,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:04,221 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 [2024-11-27 23:30:04,246 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 [2024-11-27 23:30:04,253 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 [2024-11-27 23:30:04,324 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 [2024-11-27 23:30:04,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:04,354 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:04,355 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:30:04,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305331945] [2024-11-27 23:30:04,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305331945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:04,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:04,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:30:04,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825716568] [2024-11-27 23:30:04,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:04,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:04,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:30:04,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:04,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:04,357 INFO L87 Difference]: Start difference. First operand 1076 states and 1200 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:08,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:08,367 INFO L93 Difference]: Finished difference Result 1075 states and 1199 transitions. [2024-11-27 23:30:08,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:30:08,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-27 23:30:08,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:08,371 INFO L225 Difference]: With dead ends: 1075 [2024-11-27 23:30:08,371 INFO L226 Difference]: Without dead ends: 1075 [2024-11-27 23:30:08,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:08,372 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 1 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:08,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2429 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-27 23:30:08,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2024-11-27 23:30:08,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1075. [2024-11-27 23:30:08,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 714 states have (on average 1.6400560224089635) internal successors, (1171), 1068 states have internal predecessors, (1171), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:30:08,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1199 transitions. [2024-11-27 23:30:08,387 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1199 transitions. Word has length 67 [2024-11-27 23:30:08,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:08,387 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1199 transitions. [2024-11-27 23:30:08,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:08,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1199 transitions. [2024-11-27 23:30:08,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 23:30:08,388 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:08,388 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:08,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 23:30:08,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:08,588 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:30:08,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1357033752, now seen corresponding path program 1 times [2024-11-27 23:30:08,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:30:08,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623649704] [2024-11-27 23:30:08,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:08,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:08,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:08,594 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:08,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 23:30:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:08,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:30:08,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:08,918 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 [2024-11-27 23:30:09,035 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 [2024-11-27 23:30:09,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:09,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:09,058 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:30:09,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623649704] [2024-11-27 23:30:09,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623649704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:09,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:09,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:30:09,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967662734] [2024-11-27 23:30:09,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:09,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:30:09,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:30:09,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:30:09,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:09,062 INFO L87 Difference]: Start difference. First operand 1075 states and 1199 transitions. Second operand has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:30:13,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:13,309 INFO L93 Difference]: Finished difference Result 1087 states and 1214 transitions. [2024-11-27 23:30:13,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:30:13,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-27 23:30:13,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:13,315 INFO L225 Difference]: With dead ends: 1087 [2024-11-27 23:30:13,315 INFO L226 Difference]: Without dead ends: 1087 [2024-11-27 23:30:13,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:30:13,316 INFO L435 NwaCegarLoop]: 918 mSDtfsCounter, 13 mSDsluCounter, 3017 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:13,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3935 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 23:30:13,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-27 23:30:13,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1081. [2024-11-27 23:30:13,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 719 states have (on average 1.6383866481223923) internal successors, (1178), 1073 states have internal predecessors, (1178), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (16), 6 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-27 23:30:13,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1209 transitions. [2024-11-27 23:30:13,331 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1209 transitions. Word has length 75 [2024-11-27 23:30:13,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:13,332 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1209 transitions. [2024-11-27 23:30:13,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:30:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1209 transitions. [2024-11-27 23:30:13,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 23:30:13,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:13,332 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:13,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-27 23:30:13,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:13,533 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:30:13,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:13,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1357033751, now seen corresponding path program 1 times [2024-11-27 23:30:13,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:30:13,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [244221035] [2024-11-27 23:30:13,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:13,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:13,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:13,536 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:13,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 23:30:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:13,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:30:13,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:13,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:13,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:13,896 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:30:13,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244221035] [2024-11-27 23:30:13,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244221035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:13,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:13,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:30:13,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561737254] [2024-11-27 23:30:13,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:13,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:30:13,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:30:13,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:30:13,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:30:13,898 INFO L87 Difference]: Start difference. First operand 1081 states and 1209 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:30:13,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:13,947 INFO L93 Difference]: Finished difference Result 1078 states and 1203 transitions. [2024-11-27 23:30:13,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:30:13,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-27 23:30:13,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:13,953 INFO L225 Difference]: With dead ends: 1078 [2024-11-27 23:30:13,953 INFO L226 Difference]: Without dead ends: 1078 [2024-11-27 23:30:13,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:30:13,954 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 0 mSDsluCounter, 1861 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:13,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2794 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2024-11-27 23:30:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1078. [2024-11-27 23:30:13,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 716 states have (on average 1.6396648044692737) internal successors, (1174), 1071 states have internal predecessors, (1174), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:30:13,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1203 transitions. [2024-11-27 23:30:13,976 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1203 transitions. Word has length 75 [2024-11-27 23:30:13,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:13,977 INFO L471 AbstractCegarLoop]: Abstraction has 1078 states and 1203 transitions. [2024-11-27 23:30:13,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:30:13,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1203 transitions. [2024-11-27 23:30:13,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-27 23:30:13,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:13,978 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:13,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:14,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:14,178 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:30:14,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:14,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1796327608, now seen corresponding path program 1 times [2024-11-27 23:30:14,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:30:14,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725273304] [2024-11-27 23:30:14,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:14,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:14,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:14,184 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:14,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 23:30:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:14,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:30:14,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:14,521 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:14,645 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:30:14,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725273304] [2024-11-27 23:30:14,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725273304] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:14,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:30:14,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 23:30:14,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495928205] [2024-11-27 23:30:14,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:14,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:30:14,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:30:14,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:30:14,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:14,648 INFO L87 Difference]: Start difference. First operand 1078 states and 1203 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:30:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:14,849 INFO L93 Difference]: Finished difference Result 1090 states and 1220 transitions. [2024-11-27 23:30:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:30:14,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2024-11-27 23:30:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:14,853 INFO L225 Difference]: With dead ends: 1090 [2024-11-27 23:30:14,853 INFO L226 Difference]: Without dead ends: 1090 [2024-11-27 23:30:14,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:30:14,854 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 7 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:14,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2797 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-11-27 23:30:14,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1088. [2024-11-27 23:30:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 725 states have (on average 1.64) internal successors, (1189), 1080 states have internal predecessors, (1189), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:30:14,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1218 transitions. [2024-11-27 23:30:14,878 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1218 transitions. Word has length 76 [2024-11-27 23:30:14,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:14,879 INFO L471 AbstractCegarLoop]: Abstraction has 1088 states and 1218 transitions. [2024-11-27 23:30:14,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:30:14,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1218 transitions. [2024-11-27 23:30:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-27 23:30:14,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:14,880 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:14,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:15,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:15,081 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:30:15,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:15,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1163215592, now seen corresponding path program 2 times [2024-11-27 23:30:15,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:30:15,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [996241604] [2024-11-27 23:30:15,082 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:15,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:15,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:15,086 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:15,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 23:30:34,805 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:34,805 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:34,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:30:34,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:35,015 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:30:35,016 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 [2024-11-27 23:30:35,052 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 [2024-11-27 23:30:35,336 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:30:35,336 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 [2024-11-27 23:30:35,403 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 [2024-11-27 23:30:35,437 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 23:30:35,438 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:35,558 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-27 23:30:35,558 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 [2024-11-27 23:30:35,630 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:30:35,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996241604] [2024-11-27 23:30:35,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996241604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:35,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1299451060] [2024-11-27 23:30:35,631 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:35,631 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:30:35,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:30:35,638 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:30:35,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-27 23:30:37,319 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:37,319 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:37,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:30:37,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:37,634 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:38,017 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:38,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1299451060] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:38,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:38,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-11-27 23:30:38,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150964274] [2024-11-27 23:30:38,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:38,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 23:30:38,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:30:38,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 23:30:38,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=552, Unknown=7, NotChecked=0, Total=650 [2024-11-27 23:30:38,019 INFO L87 Difference]: Start difference. First operand 1088 states and 1218 transitions. Second operand has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 23:30:49,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:49,606 INFO L93 Difference]: Finished difference Result 1104 states and 1241 transitions. [2024-11-27 23:30:49,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-27 23:30:49,607 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 79 [2024-11-27 23:30:49,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:49,610 INFO L225 Difference]: With dead ends: 1104 [2024-11-27 23:30:49,610 INFO L226 Difference]: Without dead ends: 1100 [2024-11-27 23:30:49,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=416, Invalid=2332, Unknown=8, NotChecked=0, Total=2756 [2024-11-27 23:30:49,611 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 718 mSDsluCounter, 7117 mSDsCounter, 0 mSdLazyCounter, 4894 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 7743 SdHoareTripleChecker+Invalid, 4928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 4894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:49,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 7743 Invalid, 4928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 4894 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-27 23:30:49,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2024-11-27 23:30:49,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1096. [2024-11-27 23:30:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 734 states have (on average 1.6348773841961852) internal successors, (1200), 1088 states have internal predecessors, (1200), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:30:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1229 transitions. [2024-11-27 23:30:49,632 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1229 transitions. Word has length 79 [2024-11-27 23:30:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:49,633 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1229 transitions. [2024-11-27 23:30:49,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 23:30:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1229 transitions. [2024-11-27 23:30:49,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 23:30:49,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:49,634 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:49,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:49,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-27 23:30:50,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:30:50,035 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:30:50,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:50,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1462268137, now seen corresponding path program 1 times [2024-11-27 23:30:50,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:30:50,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344297088] [2024-11-27 23:30:50,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:50,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:50,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:50,038 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:50,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 23:30:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:50,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:30:50,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:50,597 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:50,597 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:51,382 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:51,382 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:30:51,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344297088] [2024-11-27 23:30:51,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344297088] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:51,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:30:51,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-27 23:30:51,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454951229] [2024-11-27 23:30:51,383 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:51,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 23:30:51,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:30:51,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 23:30:51,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:30:51,384 INFO L87 Difference]: Start difference. First operand 1096 states and 1229 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:30:53,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:53,943 INFO L93 Difference]: Finished difference Result 1120 states and 1268 transitions. [2024-11-27 23:30:53,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-27 23:30:53,944 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2024-11-27 23:30:53,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:53,947 INFO L225 Difference]: With dead ends: 1120 [2024-11-27 23:30:53,947 INFO L226 Difference]: Without dead ends: 1114 [2024-11-27 23:30:53,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 23:30:53,949 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 22 mSDsluCounter, 13012 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 13945 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:53,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 13945 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:30:53,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2024-11-27 23:30:53,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1114. [2024-11-27 23:30:53,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 752 states have (on average 1.6263297872340425) internal successors, (1223), 1106 states have internal predecessors, (1223), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:30:53,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1252 transitions. [2024-11-27 23:30:53,972 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1252 transitions. Word has length 85 [2024-11-27 23:30:53,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:53,972 INFO L471 AbstractCegarLoop]: Abstraction has 1114 states and 1252 transitions. [2024-11-27 23:30:53,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:30:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1252 transitions. [2024-11-27 23:30:53,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 23:30:53,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:53,978 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:53,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:54,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:54,178 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:30:54,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:54,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1440697577, now seen corresponding path program 2 times [2024-11-27 23:30:54,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:30:54,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068738487] [2024-11-27 23:30:54,180 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:54,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:54,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:54,181 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:54,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 23:31:15,019 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:15,020 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:15,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-27 23:31:15,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:15,187 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 [2024-11-27 23:31:15,205 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:31:15,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-27 23:31:15,240 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 [2024-11-27 23:31:15,254 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 [2024-11-27 23:31:15,398 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 [2024-11-27 23:31:15,403 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 [2024-11-27 23:31:16,056 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:31:16,057 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 [2024-11-27 23:31:16,075 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 [2024-11-27 23:31:16,139 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 [2024-11-27 23:31:16,149 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 [2024-11-27 23:31:16,190 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 23:31:16,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:16,873 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1859 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1859) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_ArrVal_1858 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1859 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1859) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1858) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:31:16,878 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:31:16,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068738487] [2024-11-27 23:31:16,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068738487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:16,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1109103148] [2024-11-27 23:31:16,879 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:16,879 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:31:16,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:31:16,881 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:31:16,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-27 23:31:18,762 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:18,763 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:18,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 23:31:18,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:19,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:22,829 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:22,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1109103148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:22,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:31:22,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58 [2024-11-27 23:31:22,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560926703] [2024-11-27 23:31:22,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:22,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-27 23:31:22,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:31:22,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-27 23:31:22,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=699, Invalid=2844, Unknown=1, NotChecked=116, Total=3660 [2024-11-27 23:31:22,833 INFO L87 Difference]: Start difference. First operand 1114 states and 1252 transitions. Second operand has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 23:32:03,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:03,528 INFO L93 Difference]: Finished difference Result 1157 states and 1325 transitions. [2024-11-27 23:32:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-27 23:32:03,528 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 97 [2024-11-27 23:32:03,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:03,536 INFO L225 Difference]: With dead ends: 1157 [2024-11-27 23:32:03,536 INFO L226 Difference]: Without dead ends: 1149 [2024-11-27 23:32:03,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3089 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=3106, Invalid=14987, Unknown=1, NotChecked=266, Total=18360 [2024-11-27 23:32:03,541 INFO L435 NwaCegarLoop]: 633 mSDtfsCounter, 736 mSDsluCounter, 18344 mSDsCounter, 0 mSdLazyCounter, 13505 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 18977 SdHoareTripleChecker+Invalid, 13576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 13505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:03,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 18977 Invalid, 13576 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 13505 Invalid, 0 Unknown, 0 Unchecked, 30.6s Time] [2024-11-27 23:32:03,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2024-11-27 23:32:03,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1147. [2024-11-27 23:32:03,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 786 states have (on average 1.6081424936386768) internal successors, (1264), 1139 states have internal predecessors, (1264), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:32:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1293 transitions. [2024-11-27 23:32:03,561 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1293 transitions. Word has length 97 [2024-11-27 23:32:03,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:03,561 INFO L471 AbstractCegarLoop]: Abstraction has 1147 states and 1293 transitions. [2024-11-27 23:32:03,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 23:32:03,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1293 transitions. [2024-11-27 23:32:03,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 23:32:03,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:03,563 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:03,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-27 23:32:03,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-27 23:32:03,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:03,964 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:32:03,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1905483938, now seen corresponding path program 1 times [2024-11-27 23:32:03,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:32:03,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739240300] [2024-11-27 23:32:03,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:03,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:03,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:03,968 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:03,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 23:32:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:04,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-27 23:32:04,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:04,706 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:32:04,707 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 [2024-11-27 23:32:04,737 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 [2024-11-27 23:32:05,467 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:05,468 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 [2024-11-27 23:32:05,647 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:05,648 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 [2024-11-27 23:32:05,675 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 [2024-11-27 23:32:05,714 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:32:05,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:05,881 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2518 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2518) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 23:32:06,394 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-27 23:32:06,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2024-11-27 23:32:06,407 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2518 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2564 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem36#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2564))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2518)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-27 23:32:06,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:32:06,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739240300] [2024-11-27 23:32:06,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739240300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:06,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [21379475] [2024-11-27 23:32:06,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:06,410 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:32:06,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:32:06,414 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:32:06,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-27 23:32:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:09,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-27 23:32:09,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:09,774 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 [2024-11-27 23:32:09,916 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-27 23:32:09,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-27 23:32:09,982 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 [2024-11-27 23:32:10,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-27 23:32:11,490 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:11,490 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 [2024-11-27 23:32:11,737 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:11,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-27 23:32:11,773 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 [2024-11-27 23:32:11,864 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:32:11,864 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:11,887 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2988 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_2988) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-27 23:32:11,925 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2988 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2988) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (_ bv0 1))) is different from false [2024-11-27 23:32:12,377 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3034 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2988 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3034))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2988)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:32:12,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [21379475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:12,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:32:12,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2024-11-27 23:32:12,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837439048] [2024-11-27 23:32:12,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:12,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 23:32:12,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:32:12,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 23:32:12,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=388, Unknown=12, NotChecked=220, Total=702 [2024-11-27 23:32:12,382 INFO L87 Difference]: Start difference. First operand 1147 states and 1293 transitions. Second operand has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:32:25,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:25,775 INFO L93 Difference]: Finished difference Result 1148 states and 1294 transitions. [2024-11-27 23:32:25,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:32:25,775 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 122 [2024-11-27 23:32:25,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:25,778 INFO L225 Difference]: With dead ends: 1148 [2024-11-27 23:32:25,778 INFO L226 Difference]: Without dead ends: 1148 [2024-11-27 23:32:25,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=551, Unknown=12, NotChecked=260, Total=930 [2024-11-27 23:32:25,779 INFO L435 NwaCegarLoop]: 625 mSDtfsCounter, 662 mSDsluCounter, 6878 mSDsCounter, 0 mSdLazyCounter, 5775 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 7503 SdHoareTripleChecker+Invalid, 5788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 5775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:25,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 7503 Invalid, 5788 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 5775 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2024-11-27 23:32:25,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2024-11-27 23:32:25,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1146. [2024-11-27 23:32:25,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 786 states have (on average 1.6068702290076335) internal successors, (1263), 1138 states have internal predecessors, (1263), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:32:25,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1292 transitions. [2024-11-27 23:32:25,796 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1292 transitions. Word has length 122 [2024-11-27 23:32:25,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:25,797 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1292 transitions. [2024-11-27 23:32:25,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:32:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1292 transitions. [2024-11-27 23:32:25,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 23:32:25,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:25,798 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:25,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:26,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:26,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:32:26,199 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:32:26,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:26,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1905483939, now seen corresponding path program 1 times [2024-11-27 23:32:26,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:32:26,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504228557] [2024-11-27 23:32:26,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:26,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:26,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:26,202 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:26,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 23:32:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:26,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-27 23:32:26,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:26,917 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 [2024-11-27 23:32:26,934 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:32:26,935 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 [2024-11-27 23:32:26,968 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 [2024-11-27 23:32:26,977 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 [2024-11-27 23:32:27,119 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 [2024-11-27 23:32:27,124 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 [2024-11-27 23:32:28,121 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:28,121 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 [2024-11-27 23:32:28,139 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 [2024-11-27 23:32:28,311 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:28,312 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 [2024-11-27 23:32:28,324 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 [2024-11-27 23:32:28,364 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 [2024-11-27 23:32:28,376 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 [2024-11-27 23:32:28,424 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:32:28,424 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:28,659 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3504 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3503 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3503) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3504) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3503 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3503) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv4 32) .cse1) (bvadd (_ bv8 32) .cse1)))))) is different from false [2024-11-27 23:32:28,700 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3503 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_3503) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3504 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3503 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_3503) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_3504) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-27 23:32:30,183 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3503 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3596 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3595) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3596) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3503) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_3504 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3503 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3596 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3596))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3595) .cse2 v_ArrVal_3503) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_3504) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-27 23:32:30,190 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:32:30,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504228557] [2024-11-27 23:32:30,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504228557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:30,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1574926510] [2024-11-27 23:32:30,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:30,190 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:32:30,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:32:30,192 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:32:30,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-27 23:32:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:33,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-27 23:32:33,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:33,929 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 [2024-11-27 23:32:34,089 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 [2024-11-27 23:32:34,105 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:32:34,105 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 [2024-11-27 23:32:34,121 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 [2024-11-27 23:32:34,130 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 [2024-11-27 23:32:34,201 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 [2024-11-27 23:32:34,206 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 [2024-11-27 23:32:35,156 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:35,156 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 [2024-11-27 23:32:35,165 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 [2024-11-27 23:32:35,257 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:35,257 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 [2024-11-27 23:32:35,270 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 [2024-11-27 23:32:35,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-27 23:32:35,322 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 [2024-11-27 23:32:35,327 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:32:35,327 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:35,379 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4068 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4067 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4067) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_4068 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv4 32)) (bvadd .cse1 (_ bv8 32))))))) is different from false [2024-11-27 23:32:35,408 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_4068 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_4068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_4068 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4067 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_4068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_4067) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-27 23:32:36,900 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4160 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4068 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4159 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4067 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4159))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4160) .cse0 v_ArrVal_4068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_4067) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_4160 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4068 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4159 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4160) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4159) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3)))))) is different from false [2024-11-27 23:32:36,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1574926510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:36,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:32:36,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2024-11-27 23:32:36,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100115480] [2024-11-27 23:32:36,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:36,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:32:36,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:32:36,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:32:36,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=132, Unknown=6, NotChecked=162, Total=342 [2024-11-27 23:32:36,908 INFO L87 Difference]: Start difference. First operand 1146 states and 1292 transitions. Second operand has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:32:46,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:46,547 INFO L93 Difference]: Finished difference Result 1145 states and 1291 transitions. [2024-11-27 23:32:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:32:46,548 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2024-11-27 23:32:46,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:46,551 INFO L225 Difference]: With dead ends: 1145 [2024-11-27 23:32:46,551 INFO L226 Difference]: Without dead ends: 1145 [2024-11-27 23:32:46,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 236 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=283, Unknown=6, NotChecked=234, Total=600 [2024-11-27 23:32:46,552 INFO L435 NwaCegarLoop]: 633 mSDtfsCounter, 660 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 3504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 3235 SdHoareTripleChecker+Invalid, 3510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:46,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 3235 Invalid, 3510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3504 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-27 23:32:46,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-11-27 23:32:46,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1145. [2024-11-27 23:32:46,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 786 states have (on average 1.6055979643765903) internal successors, (1262), 1137 states have internal predecessors, (1262), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:32:46,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1291 transitions. [2024-11-27 23:32:46,569 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1291 transitions. Word has length 122 [2024-11-27 23:32:46,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:46,569 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1291 transitions. [2024-11-27 23:32:46,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:32:46,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1291 transitions. [2024-11-27 23:32:46,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-27 23:32:46,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:46,571 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] [2024-11-27 23:32:46,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-27 23:32:46,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-27 23:32:46,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:46,972 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:32:46,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:46,972 INFO L85 PathProgramCache]: Analyzing trace with hash -310422577, now seen corresponding path program 1 times [2024-11-27 23:32:46,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:32:46,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552625176] [2024-11-27 23:32:46,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:46,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:46,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:46,974 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:46,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 23:32:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:47,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-27 23:32:47,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:47,731 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:32:47,731 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 [2024-11-27 23:32:47,749 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 [2024-11-27 23:32:48,096 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:48,097 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 [2024-11-27 23:32:48,178 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:48,178 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 [2024-11-27 23:32:48,244 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:32:48,245 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 [2024-11-27 23:32:48,314 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 [2024-11-27 23:32:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:32:48,345 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:48,402 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-27 23:32:48,402 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 [2024-11-27 23:32:48,409 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4598 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_4598) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem39#1.base|)) is different from false [2024-11-27 23:32:48,420 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4598 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_4598) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-27 23:32:48,435 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4597 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4598 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4597)) (.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_4598) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-27 23:32:48,446 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4597 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4598 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4597))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4598) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-27 23:32:48,887 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4597 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4598 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4644))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4597)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4598) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-27 23:32:48,889 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:32:48,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552625176] [2024-11-27 23:32:48,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552625176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:48,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [168285564] [2024-11-27 23:32:48,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:48,890 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:32:48,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:32:48,893 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:32:48,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-27 23:33:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:01,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-27 23:33:01,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:01,317 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 [2024-11-27 23:33:01,480 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-27 23:33:01,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-27 23:33:01,543 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 [2024-11-27 23:33:01,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-27 23:33:02,845 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:02,846 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 [2024-11-27 23:33:03,065 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:03,065 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 [2024-11-27 23:33:03,199 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:03,199 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 [2024-11-27 23:33:03,226 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 [2024-11-27 23:33:03,292 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:33:03,292 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:03,403 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5085 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5085) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 23:33:03,418 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5084 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5085 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5084))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5085)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:33:03,428 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5084 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5085 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5084))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5085)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:33:03,866 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5084 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5085 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5131))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5084)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5085)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:33:03,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [168285564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:03,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:33:03,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2024-11-27 23:33:03,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916700250] [2024-11-27 23:33:03,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:03,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 23:33:03,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:03,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 23:33:03,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=425, Unknown=20, NotChecked=450, Total=992 [2024-11-27 23:33:03,870 INFO L87 Difference]: Start difference. First operand 1145 states and 1291 transitions. Second operand has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:33:12,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:12,288 INFO L93 Difference]: Finished difference Result 1146 states and 1292 transitions. [2024-11-27 23:33:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:33:12,289 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 125 [2024-11-27 23:33:12,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:12,291 INFO L225 Difference]: With dead ends: 1146 [2024-11-27 23:33:12,291 INFO L226 Difference]: Without dead ends: 1146 [2024-11-27 23:33:12,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=506, Unknown=20, NotChecked=486, Total=1122 [2024-11-27 23:33:12,292 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 657 mSDsluCounter, 4972 mSDsCounter, 0 mSdLazyCounter, 3933 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 5598 SdHoareTripleChecker+Invalid, 3946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:12,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 5598 Invalid, 3946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3933 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-27 23:33:12,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2024-11-27 23:33:12,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1144. [2024-11-27 23:33:12,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 786 states have (on average 1.604325699745547) internal successors, (1261), 1136 states have internal predecessors, (1261), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:33:12,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1290 transitions. [2024-11-27 23:33:12,310 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1290 transitions. Word has length 125 [2024-11-27 23:33:12,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:12,310 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1290 transitions. [2024-11-27 23:33:12,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:33:12,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1290 transitions. [2024-11-27 23:33:12,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-27 23:33:12,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:12,313 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] [2024-11-27 23:33:12,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-27 23:33:12,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:12,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:33:12,713 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:33:12,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:12,714 INFO L85 PathProgramCache]: Analyzing trace with hash -310422576, now seen corresponding path program 1 times [2024-11-27 23:33:12,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:12,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785032620] [2024-11-27 23:33:12,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:12,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:12,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:12,716 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:12,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 23:33:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:13,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 115 conjuncts are in the unsatisfiable core [2024-11-27 23:33:13,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:13,583 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:33:13,583 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 [2024-11-27 23:33:13,590 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 [2024-11-27 23:33:13,619 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 [2024-11-27 23:33:13,632 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 [2024-11-27 23:33:13,786 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 [2024-11-27 23:33:13,792 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 [2024-11-27 23:33:14,590 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:14,590 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 [2024-11-27 23:33:14,599 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 [2024-11-27 23:33:14,713 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:14,713 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 [2024-11-27 23:33:14,722 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 [2024-11-27 23:33:14,823 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:14,823 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 [2024-11-27 23:33:14,835 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 [2024-11-27 23:33:14,874 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 [2024-11-27 23:33:14,883 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 [2024-11-27 23:33:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:33:14,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:15,099 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5618) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5618) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv8 32)) (bvadd .cse1 (_ bv12 32))))))) is different from false [2024-11-27 23:33:15,132 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5618) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5618) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_5617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-27 23:33:15,238 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5615 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5616) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5615) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5618) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5615 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5615))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5616) .cse2 v_ArrVal_5618) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_5617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-27 23:33:15,311 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5615 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5615))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5616) .cse1 v_ArrVal_5618) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_5616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5615 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5616) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5615) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5618) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd (_ bv12 32) .cse4))))))) is different from false [2024-11-27 23:33:16,805 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5709 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5709))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_5615))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5710) .cse0 v_ArrVal_5616) .cse1 v_ArrVal_5618) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_5616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5709 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5709))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5710) .cse6 v_ArrVal_5616) (select (select (store .cse7 .cse6 v_ArrVal_5615) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5618))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse5) (bvadd (_ bv12 32) .cse5)))))) is different from false [2024-11-27 23:33:16,815 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:16,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785032620] [2024-11-27 23:33:16,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785032620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:16,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [254245971] [2024-11-27 23:33:16,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:16,816 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:33:16,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:33:16,818 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:33:16,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-27 23:33:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:30,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-27 23:33:30,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:30,580 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 [2024-11-27 23:33:30,697 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 [2024-11-27 23:33:30,709 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:33:30,710 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 [2024-11-27 23:33:30,722 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 [2024-11-27 23:33:30,726 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 [2024-11-27 23:33:30,787 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 [2024-11-27 23:33:30,791 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 [2024-11-27 23:33:31,564 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:31,564 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 62 treesize of output 57 [2024-11-27 23:33:31,577 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 [2024-11-27 23:33:31,648 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:31,648 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 [2024-11-27 23:33:31,657 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 [2024-11-27 23:33:31,718 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:31,718 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 [2024-11-27 23:33:31,727 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 [2024-11-27 23:33:31,756 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 [2024-11-27 23:33:31,763 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 [2024-11-27 23:33:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:33:31,766 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:31,981 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6198) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6199 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6198) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_6199) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-27 23:33:32,043 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6196 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6199 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6197))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6196) .cse0 v_ArrVal_6198) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6199) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6196 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6196) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6197) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6198) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false [2024-11-27 23:33:32,143 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6196 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6199 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6197))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6196) .cse1 v_ArrVal_6198) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6199) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_6196 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6196) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6197) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6198) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd (_ bv12 32) .cse4))))))) is different from false [2024-11-27 23:33:33,857 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6196 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6290 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6291 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6290))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6291) .cse1 v_ArrVal_6196) (select (select (store .cse2 .cse1 v_ArrVal_6197) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_6198))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_6196 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6290 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6291 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6199 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6290))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_6197))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6291) .cse4 v_ArrVal_6196) .cse5 v_ArrVal_6198) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv12 32)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_6199) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-27 23:33:33,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [254245971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:33,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:33:33,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 11 [2024-11-27 23:33:33,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713518509] [2024-11-27 23:33:33,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:33,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:33:33,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:33,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:33:33,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=174, Unknown=17, NotChecked=306, Total=552 [2024-11-27 23:33:33,869 INFO L87 Difference]: Start difference. First operand 1144 states and 1290 transitions. Second operand has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:33:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:52,343 INFO L93 Difference]: Finished difference Result 1143 states and 1289 transitions. [2024-11-27 23:33:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:33:52,343 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2024-11-27 23:33:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:52,346 INFO L225 Difference]: With dead ends: 1143 [2024-11-27 23:33:52,346 INFO L226 Difference]: Without dead ends: 1143 [2024-11-27 23:33:52,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 243 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=98, Invalid=382, Unknown=18, NotChecked=432, Total=930 [2024-11-27 23:33:52,346 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 658 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 4592 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 3977 SdHoareTripleChecker+Invalid, 4598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:52,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 3977 Invalid, 4598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4592 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time] [2024-11-27 23:33:52,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2024-11-27 23:33:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1143. [2024-11-27 23:33:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 786 states have (on average 1.6030534351145038) internal successors, (1260), 1135 states have internal predecessors, (1260), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:33:52,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1289 transitions. [2024-11-27 23:33:52,358 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1289 transitions. Word has length 125 [2024-11-27 23:33:52,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:52,359 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1289 transitions. [2024-11-27 23:33:52,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:33:52,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1289 transitions. [2024-11-27 23:33:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 23:33:52,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:52,360 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:52,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-27 23:33:52,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2024-11-27 23:33:52,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:33:52,761 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:33:52,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:52,761 INFO L85 PathProgramCache]: Analyzing trace with hash -734064471, now seen corresponding path program 1 times [2024-11-27 23:33:52,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:52,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660498953] [2024-11-27 23:33:52,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:52,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:52,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:52,763 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:52,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 23:33:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:53,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-27 23:33:53,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:53,942 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:33:53,943 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 [2024-11-27 23:33:53,997 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 [2024-11-27 23:33:54,716 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:54,716 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 [2024-11-27 23:33:54,845 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:54,846 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 [2024-11-27 23:33:54,985 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:54,985 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 [2024-11-27 23:33:55,246 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:33:55,246 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 [2024-11-27 23:33:55,292 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 [2024-11-27 23:33:55,375 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:33:55,375 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:55,604 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_6745) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (_ bv0 1))) is different from false [2024-11-27 23:33:55,648 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-27 23:33:55,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2024-11-27 23:33:55,663 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6744 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem39#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6744))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6745)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-27 23:33:55,681 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6744 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6744))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6745)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-27 23:33:55,710 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6743 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6744 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6743)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_6744))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6745)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-27 23:33:55,732 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6743 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6744 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6743))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_6744))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6745)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-27 23:33:56,351 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6791 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6743 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6744 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6791))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6743)))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_6744))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6745)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-27 23:33:56,354 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:56,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660498953] [2024-11-27 23:33:56,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660498953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:56,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [545112143] [2024-11-27 23:33:56,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:56,355 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:33:56,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:33:56,357 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:33:56,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-27 23:34:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:12,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-27 23:34:12,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:12,692 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 [2024-11-27 23:34:13,096 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-27 23:34:13,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-27 23:34:13,264 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 [2024-11-27 23:34:13,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-27 23:34:15,497 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:34:15,497 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 [2024-11-27 23:34:15,813 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:34:15,813 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 [2024-11-27 23:34:16,039 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:34:16,039 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 [2024-11-27 23:34:16,266 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:34:16,266 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 [2024-11-27 23:34:16,313 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 [2024-11-27 23:34:16,440 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:34:16,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:16,471 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7248 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7248) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-27 23:34:16,487 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7248 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_7248) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 23:34:16,519 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7248 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7247))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7248)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:34:16,541 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7248 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7247))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7248)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:34:16,567 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7248 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7246 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7246))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7247)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7248)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:34:16,588 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7248 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7246 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7246))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7247)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7248)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:34:17,214 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7294 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7248 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7246 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7294))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7246)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7247)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7248)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:34:17,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [545112143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:17,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:17,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2024-11-27 23:34:17,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171276217] [2024-11-27 23:34:17,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:17,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 23:34:17,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:17,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 23:34:17,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=509, Unknown=24, NotChecked=754, Total=1406 [2024-11-27 23:34:17,221 INFO L87 Difference]: Start difference. First operand 1143 states and 1289 transitions. Second operand has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:34:32,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:32,507 INFO L93 Difference]: Finished difference Result 1144 states and 1290 transitions. [2024-11-27 23:34:32,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:34:32,508 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 128 [2024-11-27 23:34:32,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:32,510 INFO L225 Difference]: With dead ends: 1144 [2024-11-27 23:34:32,510 INFO L226 Difference]: Without dead ends: 1144 [2024-11-27 23:34:32,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=132, Invalid=597, Unknown=25, NotChecked=806, Total=1560 [2024-11-27 23:34:32,511 INFO L435 NwaCegarLoop]: 625 mSDtfsCounter, 652 mSDsluCounter, 5046 mSDsCounter, 0 mSdLazyCounter, 3876 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 5671 SdHoareTripleChecker+Invalid, 3888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:32,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 5671 Invalid, 3888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3876 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2024-11-27 23:34:32,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2024-11-27 23:34:32,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1142. [2024-11-27 23:34:32,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 786 states have (on average 1.6017811704834606) internal successors, (1259), 1134 states have internal predecessors, (1259), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:34:32,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1288 transitions. [2024-11-27 23:34:32,525 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1288 transitions. Word has length 128 [2024-11-27 23:34:32,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:32,525 INFO L471 AbstractCegarLoop]: Abstraction has 1142 states and 1288 transitions. [2024-11-27 23:34:32,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:34:32,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1288 transitions. [2024-11-27 23:34:32,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 23:34:32,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:32,526 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:32,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-27 23:34:32,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-11-27 23:34:32,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:34:32,927 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:34:32,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:32,927 INFO L85 PathProgramCache]: Analyzing trace with hash -734064470, now seen corresponding path program 1 times [2024-11-27 23:34:32,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:32,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132688292] [2024-11-27 23:34:32,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:32,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:32,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:32,929 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:32,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-27 23:34:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:33,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-27 23:34:33,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:34,137 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 [2024-11-27 23:34:34,181 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:34:34,182 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 [2024-11-27 23:34:34,261 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 [2024-11-27 23:34:34,290 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 [2024-11-27 23:34:34,530 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 [2024-11-27 23:34:34,537 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 [2024-11-27 23:34:35,971 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:34:35,971 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 [2024-11-27 23:34:35,986 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 [2024-11-27 23:34:36,220 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:34:36,220 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 [2024-11-27 23:34:36,240 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 [2024-11-27 23:34:36,447 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:34:36,448 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 [2024-11-27 23:34:36,463 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 [2024-11-27 23:34:36,660 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:34:36,660 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 [2024-11-27 23:34:36,675 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 [2024-11-27 23:34:36,725 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 [2024-11-27 23:34:36,732 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 [2024-11-27 23:34:36,803 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:34:36,803 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:37,061 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7798 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7798) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv20 32) .cse1) (bvadd (_ bv24 32) .cse1)))))) is different from false [2024-11-27 23:34:37,099 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_7798 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7798) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse2) (bvadd (_ bv24 32) .cse2))))))) is different from false [2024-11-27 23:34:37,168 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7798 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7795))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7796) .cse0 v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_7798) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7796) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7795) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse3 (_ bv20 32)) (bvadd .cse3 (_ bv24 32))))))) is different from false [2024-11-27 23:34:37,233 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7798 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7795))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7796) .cse1 v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7798) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7796) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7795) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv20 32)) (bvadd .cse4 (_ bv24 32)))))))) is different from false [2024-11-27 23:34:37,396 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7798 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7794))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_7795))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7793) .cse0 v_ArrVal_7796) .cse1 v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7798) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7794))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7793) .cse6 v_ArrVal_7796) (select (select (store .cse7 .cse6 v_ArrVal_7795) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7797))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse5) (bvadd (_ bv24 32) .cse5)))))) is different from false [2024-11-27 23:34:37,589 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((v_ArrVal_7798 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7794))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_7795))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7793) .cse1 v_ArrVal_7796) .cse2 v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_7798) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7794))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7793) .cse7 v_ArrVal_7796) (select (select (store .cse8 .cse7 v_ArrVal_7795) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7797))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse6) (bvadd (_ bv24 32) .cse6))))))) is different from false [2024-11-27 23:34:43,782 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7889 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7889))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_7794))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7890) .cse1 v_ArrVal_7793) .cse2 v_ArrVal_7796) (select (select (store .cse3 .cse2 v_ArrVal_7795) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_7797))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7889 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7798 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7797 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7889))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_7794))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_7795))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7890) .cse6 v_ArrVal_7793) .cse7 v_ArrVal_7796) .cse8 v_ArrVal_7797) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_7798) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2024-11-27 23:34:43,822 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:43,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132688292] [2024-11-27 23:34:43,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132688292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:43,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [666610404] [2024-11-27 23:34:43,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:43,823 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:34:43,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:34:43,825 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:34:43,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-27 23:35:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:00,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 120 conjuncts are in the unsatisfiable core [2024-11-27 23:35:00,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:00,978 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 [2024-11-27 23:35:03,374 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 [2024-11-27 23:35:03,607 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:35:03,607 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 [2024-11-27 23:35:03,741 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 [2024-11-27 23:35:03,786 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 [2024-11-27 23:35:04,530 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 [2024-11-27 23:35:04,574 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 [2024-11-27 23:35:13,341 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:35:13,342 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 [2024-11-27 23:35:13,430 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 [2024-11-27 23:35:14,331 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:35:14,331 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 [2024-11-27 23:35:14,419 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 [2024-11-27 23:35:15,079 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:35:15,079 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 [2024-11-27 23:35:15,167 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 [2024-11-27 23:35:15,819 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:35:15,819 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 [2024-11-27 23:35:15,949 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 [2024-11-27 23:35:16,212 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 [2024-11-27 23:35:16,256 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 [2024-11-27 23:35:16,300 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:35:16,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:35:16,723 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8396 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8396) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv20 32) .cse1) (bvadd (_ bv24 32) .cse1)))))) is different from false [2024-11-27 23:35:16,880 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8396 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8396) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-27 23:35:17,170 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8394 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8393 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8394) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8393) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8396 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8394 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8393 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8393))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8394) .cse2 v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_8396) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-27 23:35:17,367 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8396 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8394 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8393 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8393))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8394) .cse1 v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8396) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8394 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8393 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8394) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8393) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv20 32)) (bvadd .cse4 (_ bv24 32)))))))) is different from false [2024-11-27 23:35:18,029 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8396 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8394 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8393 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8392))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_8393))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8391) .cse0 v_ArrVal_8394) .cse1 v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8396) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8394 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8393 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8392))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8391) .cse6 v_ArrVal_8394) (select (select (store .cse7 .cse6 v_ArrVal_8393) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8395))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse5) (bvadd (_ bv24 32) .cse5)))))) is different from false [2024-11-27 23:35:18,393 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((v_ArrVal_8396 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8394 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8393 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8392))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_8393))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8391) .cse1 v_ArrVal_8394) .cse2 v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv24 32)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_8396) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8394 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8393 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8392))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8391) .cse7 v_ArrVal_8394) (select (select (store .cse8 .cse7 v_ArrVal_8393) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8395))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse6 (_ bv20 32)) (bvadd .cse6 (_ bv24 32)))))))) is different from false [2024-11-27 23:35:23,599 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-27 23:35:25,355 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8396 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8394 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8393 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8488 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8487 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8488))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_8392))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_8393))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8487) .cse0 v_ArrVal_8391) .cse1 v_ArrVal_8394) .cse2 v_ArrVal_8395) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv24 32)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_8396) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_8395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8394 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8393 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8488 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8487 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8488))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_8392))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8487) .cse8 v_ArrVal_8391) .cse9 v_ArrVal_8394) (select (select (store .cse10 .cse9 v_ArrVal_8393) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8395))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse7 (_ bv20 32)) (bvadd .cse7 (_ bv24 32))))))) is different from false [2024-11-27 23:35:25,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [666610404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:25,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:35:25,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 12 [2024-11-27 23:35:25,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288310106] [2024-11-27 23:35:25,391 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:35:25,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:35:25,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:35:25,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:35:25,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=186, Unknown=14, NotChecked=546, Total=812 [2024-11-27 23:35:25,393 INFO L87 Difference]: Start difference. First operand 1142 states and 1288 transitions. Second operand has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:37:02,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:02,292 INFO L93 Difference]: Finished difference Result 1141 states and 1287 transitions. [2024-11-27 23:37:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:37:02,292 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2024-11-27 23:37:02,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:02,294 INFO L225 Difference]: With dead ends: 1141 [2024-11-27 23:37:02,294 INFO L226 Difference]: Without dead ends: 1141 [2024-11-27 23:37:02,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 250 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=115, Invalid=433, Unknown=14, NotChecked=770, Total=1332 [2024-11-27 23:37:02,295 INFO L435 NwaCegarLoop]: 631 mSDtfsCounter, 656 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 4048 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 4054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:02,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 3615 Invalid, 4054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4048 Invalid, 0 Unknown, 0 Unchecked, 93.2s Time] [2024-11-27 23:37:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2024-11-27 23:37:02,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1141. [2024-11-27 23:37:02,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 786 states have (on average 1.6005089058524173) internal successors, (1258), 1133 states have internal predecessors, (1258), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:37:02,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1287 transitions. [2024-11-27 23:37:02,306 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1287 transitions. Word has length 128 [2024-11-27 23:37:02,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:02,306 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1287 transitions. [2024-11-27 23:37:02,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:37:02,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1287 transitions. [2024-11-27 23:37:02,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:37:02,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:02,307 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:02,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-27 23:37:02,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2024-11-27 23:37:02,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:37:02,708 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:37:02,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:02,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2010640533, now seen corresponding path program 1 times [2024-11-27 23:37:02,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:37:02,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682085515] [2024-11-27 23:37:02,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:02,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:02,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:37:02,713 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:37:02,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-27 23:37:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:03,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-27 23:37:03,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:37:05,974 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:37:05,974 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 [2024-11-27 23:37:06,277 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 [2024-11-27 23:37:10,940 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:10,940 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 [2024-11-27 23:37:11,773 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:11,773 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 [2024-11-27 23:37:12,641 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:12,641 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 [2024-11-27 23:37:13,571 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:13,571 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 [2024-11-27 23:37:15,293 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:15,294 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 [2024-11-27 23:37:15,510 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 [2024-11-27 23:37:16,465 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-27 23:37:16,465 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 [2024-11-27 23:37:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:37:16,509 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:37:18,865 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_8960) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 23:37:19,175 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-27 23:37:19,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2024-11-27 23:37:19,254 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8959 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8959))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem40#1.base|)) is different from false [2024-11-27 23:37:19,356 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8959 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| .cse2 v_ArrVal_8959))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse2)))) is different from false [2024-11-27 23:37:19,503 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8959 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8958 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8958)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_8959))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-27 23:37:19,611 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8959 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8958 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8958))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_8959))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-27 23:37:19,769 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8959 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8958 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8957 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8957))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8958)))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_8959))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-27 23:37:19,877 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8959 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8958 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8957 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8957))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8958)))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_8959))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-27 23:37:22,713 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8959 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8958 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8957 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9007 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9007))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8957)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8958)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_8959))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-27 23:37:22,738 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:37:22,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682085515] [2024-11-27 23:37:22,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682085515] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:22,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1842309805] [2024-11-27 23:37:22,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:22,738 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:37:22,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:37:22,740 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:37:22,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-11-27 23:37:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:31,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-27 23:37:31,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:37:31,547 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 [2024-11-27 23:37:34,406 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-27 23:37:34,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-27 23:37:35,236 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 [2024-11-27 23:37:37,538 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 24 treesize of output 12 [2024-11-27 23:37:52,168 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:52,169 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 [2024-11-27 23:37:54,560 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:54,560 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 [2024-11-27 23:37:56,157 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:56,157 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 [2024-11-27 23:37:57,769 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:57,769 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 [2024-11-27 23:37:59,421 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:59,421 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 [2024-11-27 23:37:59,731 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 [2024-11-27 23:38:01,545 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-27 23:38:01,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-27 23:38:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:38:01,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:03,705 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9480 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_9480))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:38:03,806 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9480 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9480))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:38:03,963 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9480 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9479 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_9479))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9480)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:38:04,083 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9480 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9479 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9479))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9480)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:38:04,244 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9480 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9479 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9478 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9478))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9479)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9480)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:38:04,360 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9480 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9479 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9478 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8960 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9478))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9479)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9480)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8960)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 23:38:08,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1842309805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:08,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:38:08,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2024-11-27 23:38:08,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502549422] [2024-11-27 23:38:08,188 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:08,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 23:38:08,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:38:08,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 23:38:08,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=702, Unknown=25, NotChecked=938, Total=1806 [2024-11-27 23:38:08,190 INFO L87 Difference]: Start difference. First operand 1141 states and 1287 transitions. Second operand has 26 states, 23 states have (on average 6.3478260869565215) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:39:32,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:32,843 INFO L93 Difference]: Finished difference Result 1142 states and 1288 transitions. [2024-11-27 23:39:32,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:39:32,844 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 6.3478260869565215) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 132 [2024-11-27 23:39:32,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:32,846 INFO L225 Difference]: With dead ends: 1142 [2024-11-27 23:39:32,846 INFO L226 Difference]: Without dead ends: 1142 [2024-11-27 23:39:32,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 251 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=154, Invalid=807, Unknown=25, NotChecked=994, Total=1980 [2024-11-27 23:39:32,847 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 655 mSDsluCounter, 4416 mSDsCounter, 0 mSdLazyCounter, 3657 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 5040 SdHoareTripleChecker+Invalid, 3681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:32,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 5040 Invalid, 3681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3657 Invalid, 0 Unknown, 0 Unchecked, 83.7s Time] [2024-11-27 23:39:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2024-11-27 23:39:32,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1140. [2024-11-27 23:39:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 786 states have (on average 1.599236641221374) internal successors, (1257), 1132 states have internal predecessors, (1257), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 23:39:32,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1286 transitions. [2024-11-27 23:39:32,863 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1286 transitions. Word has length 132 [2024-11-27 23:39:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:32,864 INFO L471 AbstractCegarLoop]: Abstraction has 1140 states and 1286 transitions. [2024-11-27 23:39:32,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 6.3478260869565215) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:39:32,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1286 transitions. [2024-11-27 23:39:32,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:39:32,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:32,865 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:39:32,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-27 23:39:33,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2024-11-27 23:39:33,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:39:33,266 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 23:39:33,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:33,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2010640532, now seen corresponding path program 1 times [2024-11-27 23:39:33,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:39:33,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802384901] [2024-11-27 23:39:33,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:33,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:39:33,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:39:33,269 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:39:33,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-27 23:39:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:34,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-11-27 23:39:34,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:39:36,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:39:36,692 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:39:36,693 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 [2024-11-27 23:39:37,085 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 [2024-11-27 23:39:37,222 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 [2024-11-27 23:39:38,587 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 [2024-11-27 23:39:38,633 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 [2024-11-27 23:39:50,809 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:50,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-27 23:39:50,901 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 [2024-11-27 23:39:53,046 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:53,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-27 23:39:53,137 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 [2024-11-27 23:39:54,824 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:54,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-27 23:39:54,917 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 [2024-11-27 23:39:56,775 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:56,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-27 23:39:56,865 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 [2024-11-27 23:39:58,573 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:58,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-27 23:39:58,710 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 [2024-11-27 23:39:59,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2024-11-27 23:39:59,263 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 [2024-11-27 23:40:00,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:40:00,436 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-27 23:40:00,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 21 [2024-11-27 23:40:00,722 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 23:40:00,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-27 23:40:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:40:01,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:40:11,132 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10050 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10052 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_10051) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10052) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_10050) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (or (forall ((v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_10051) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule .cse2 (bvadd (_ bv4 32) .cse2)))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))))))) is different from false [2024-11-27 23:40:11,669 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (or (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))) (forall ((v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10048) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10049) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_10051) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule .cse0 (bvadd (_ bv4 32) .cse0))))) (forall ((v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10050 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))) (forall ((v_ArrVal_10052 (_ BitVec 32))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10049))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10048) .cse2 v_ArrVal_10051) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10052) (select (select (store .cse3 .cse2 v_ArrVal_10050) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))))) is different from false [2024-11-27 23:40:12,000 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10050 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10052 (_ BitVec 32))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_10049))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_10048) .cse1 v_ArrVal_10051) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10052) (select (select (store .cse3 .cse1 v_ArrVal_10050) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (or (forall ((v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_10048) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_10049) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_10051) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse4 (bvadd (_ bv4 32) .cse4)))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))))))) is different from false [2024-11-27 23:40:12,595 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10047 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10046 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10050 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10052 (_ BitVec 32))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10047))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_10049))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10046) .cse0 v_ArrVal_10048) .cse1 v_ArrVal_10051) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10052) (select (select (store .cse3 .cse1 v_ArrVal_10050) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (or (forall ((v_ArrVal_10047 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10046 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10047))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10046) .cse6 v_ArrVal_10048) (select (select (store .cse7 .cse6 v_ArrVal_10049) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_10051))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse5 (bvadd .cse5 (_ bv4 32))))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))))) is different from false [2024-11-27 23:40:12,918 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (or (forall ((v_ArrVal_10047 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10046 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10047))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10046) .cse2 v_ArrVal_10048) (select (select (store .cse3 .cse2 v_ArrVal_10049) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_10051))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule .cse0 (bvadd .cse0 (_ bv4 32))))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (forall ((v_ArrVal_10047 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10046 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10050 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))) (forall ((v_ArrVal_10052 (_ BitVec 32))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10047))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_10049))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10046) .cse5 v_ArrVal_10048) .cse6 v_ArrVal_10051) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10052) (select (select (store .cse7 .cse6 v_ArrVal_10050) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))))) is different from false [2024-11-27 23:40:14,186 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10044 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10047 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10045 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10046 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10050 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))) (forall ((v_ArrVal_10052 (_ BitVec 32))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10045))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_10047))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_10049))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10044) .cse0 v_ArrVal_10046) .cse1 v_ArrVal_10048) .cse2 v_ArrVal_10051) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10052) (select (select (store .cse4 .cse2 v_ArrVal_10050) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))) (forall ((v_ArrVal_10044 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10047 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10045 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10046 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10045))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_10047))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10044) .cse8 v_ArrVal_10046) .cse9 v_ArrVal_10048) (select (select (store .cse10 .cse9 v_ArrVal_10049) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_10051))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule .cse7 (bvadd (_ bv4 32) .cse7))))))) is different from false [2024-11-27 23:40:14,569 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_10044 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10047 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10045 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10046 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10050 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10052 (_ BitVec 32))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_10045))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse6 (store .cse7 .cse1 v_ArrVal_10047))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse5 (store .cse6 .cse2 v_ArrVal_10049))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_10044) .cse1 v_ArrVal_10046) .cse2 v_ArrVal_10048) .cse3 v_ArrVal_10051) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10052) (select (select (store .cse5 .cse3 v_ArrVal_10050) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))) (forall ((v_ArrVal_10044 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10047 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10045 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10046 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (select (select (let ((.cse12 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_10045))) (let ((.cse9 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse11 (store .cse12 .cse9 v_ArrVal_10047))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_10044) .cse9 v_ArrVal_10046) .cse10 v_ArrVal_10048) (select (select (store .cse11 .cse10 v_ArrVal_10049) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_10051))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule .cse8 (bvadd .cse8 (_ bv4 32))))))))) is different from false [2024-11-27 23:40:20,235 WARN L286 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 362 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-27 23:40:21,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:40:21,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 795 treesize of output 819 [2024-11-27 23:40:27,373 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10143 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10044 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10047 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10048 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10045 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10046 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10049 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10051 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_10143))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse6 (store .cse7 .cse1 v_ArrVal_10045))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse4 (store .cse6 .cse2 v_ArrVal_10047))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_10144) .cse1 v_ArrVal_10044) .cse2 v_ArrVal_10046) .cse3 v_ArrVal_10048) (select (select (store .cse4 .cse3 v_ArrVal_10049) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_10051))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule .cse0 (bvadd .cse0 (_ bv4 32))))) (forall ((v_prenex_39 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_40 (_ BitVec 32)) (v_prenex_37 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_38 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_35 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_36 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_33 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_34 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_32 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10052 (_ BitVec 32)) (v_prenex_41 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10050 (Array (_ BitVec 32) (_ BitVec 32)))) (or (let ((.cse15 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_prenex_32))) (let ((.cse8 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse14 (store .cse15 .cse8 v_prenex_37))) (let ((.cse9 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse13 (store .cse14 .cse9 v_prenex_34))) (let ((.cse10 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse12 (store .cse13 .cse10 v_prenex_39))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_prenex_36) .cse8 v_prenex_33) .cse9 v_prenex_38) .cse10 v_prenex_35) .cse11 v_prenex_41) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (select (store |c_#length| v_prenex_40 v_ArrVal_10052) (select (select (store .cse12 .cse11 v_ArrVal_10050) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))))))))))) (= v_prenex_40 |c_ULTIMATE.start_main_#t~mem36#1.base|))))) is different from false [2024-11-27 23:40:27,442 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:40:27,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802384901] [2024-11-27 23:40:27,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802384901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:40:27,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1150655746] [2024-11-27 23:40:27,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:40:27,443 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:40:27,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:40:27,445 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:40:27,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53cad43-c28b-4921-88d2-d6f21526e221/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2024-11-27 23:42:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:42:07,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 126 conjuncts are in the unsatisfiable core [2024-11-27 23:42:07,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:42:07,176 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 [2024-11-27 23:42:13,883 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-27 23:42:13,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-27 23:42:14,291 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 [2024-11-27 23:42:16,431 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 [2024-11-27 23:42:16,539 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 [2024-11-27 23:42:23,764 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 35 treesize of output 17 [2024-11-27 23:42:23,872 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 [2024-11-27 23:43:03,765 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:43:03,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-27 23:43:03,968 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 [2024-11-27 23:43:10,593 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:43:10,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-27 23:43:10,885 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 [2024-11-27 23:43:15,553 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:43:15,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-27 23:43:15,762 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 [2024-11-27 23:43:20,414 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:43:20,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-27 23:43:20,622 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 [2024-11-27 23:43:25,365 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:43:25,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-27 23:43:25,578 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