./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd --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 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:52:58,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:52:58,540 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 15:52:58,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:52:58,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:52:58,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:52:58,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:52:58,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:52:58,593 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:52:58,593 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:52:58,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:52:58,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:52:58,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:52:58,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:52:58,596 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:52:58,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:52:58,596 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:52:58,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:52:58,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:52:58,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:52:58,597 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:52:58,597 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:52:58,598 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 15:52:58,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:52:58,598 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:52:58,598 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:52:58,598 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:52:58,598 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:52:58,599 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:52:58,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:52:58,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:52:58,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:52:58,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:52:58,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:52:58,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:52:58,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:52:58,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:52:58,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:52:58,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:52:58,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:52:58,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:52:58,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:52:58,602 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_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd 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 -> 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd [2024-11-13 15:52:59,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:52:59,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:52:59,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:52:59,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:52:59,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:52:59,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i Unable to find full path for "g++" [2024-11-13 15:53:01,189 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:53:01,764 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:53:01,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i [2024-11-13 15:53:01,804 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/data/09e77fb41/c1d35ac86c49463db577e17eb93e80d4/FLAG1728b9d6a [2024-11-13 15:53:01,828 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/data/09e77fb41/c1d35ac86c49463db577e17eb93e80d4 [2024-11-13 15:53:01,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:53:01,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:53:01,837 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:53:01,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:53:01,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:53:01,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:53:01" (1/1) ... [2024-11-13 15:53:01,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5423220b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:01, skipping insertion in model container [2024-11-13 15:53:01,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:53:01" (1/1) ... [2024-11-13 15:53:01,930 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:53:02,744 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,783 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,789 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,802 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,812 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,860 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,863 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,866 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,866 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,872 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,876 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,879 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,880 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,881 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,885 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:02,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:53:02,912 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) [2024-11-13 15:53:02,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@148c5988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:02, skipping insertion in model container [2024-11-13 15:53:02,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:53:02,913 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-13 15:53:02,917 INFO L158 Benchmark]: Toolchain (without parser) took 1080.24ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 83.7MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 15:53:02,920 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:53:02,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1076.37ms. Allocated memory is still 142.6MB. Free memory was 114.8MB in the beginning and 83.7MB in the end (delta: 31.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 15:53:02,922 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1076.37ms. Allocated memory is still 142.6MB. Free memory was 114.8MB in the beginning and 83.7MB in the end (delta: 31.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2239]: 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_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd --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 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:53:05,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:53:06,112 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-13 15:53:06,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:53:06,124 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:53:06,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:53:06,152 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:53:06,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:53:06,153 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:53:06,153 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:53:06,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:53:06,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:53:06,154 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:53:06,154 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:53:06,154 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:53:06,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:53:06,155 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:53:06,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:53:06,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:53:06,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:53:06,156 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:53:06,156 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:53:06,156 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 15:53:06,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:53:06,156 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:53:06,156 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:53:06,157 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:53:06,157 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:53:06,157 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:53:06,157 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:53:06,157 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:53:06,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:53:06,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:53:06,158 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:53:06,158 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:53:06,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:53:06,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:53:06,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:53:06,159 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:53:06,159 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:53:06,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:53:06,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:53:06,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:53:06,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:53:06,159 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_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd 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 -> 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd [2024-11-13 15:53:06,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:53:06,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:53:06,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:53:06,559 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:53:06,559 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:53:06,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i Unable to find full path for "g++" [2024-11-13 15:53:08,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:53:09,377 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:53:09,378 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i [2024-11-13 15:53:09,411 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/data/c7a98efeb/88fd6000bf1540f7a579abc06c037fb0/FLAG75572d0d8 [2024-11-13 15:53:09,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/data/c7a98efeb/88fd6000bf1540f7a579abc06c037fb0 [2024-11-13 15:53:09,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:53:09,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:53:09,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:53:09,934 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:53:09,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:53:09,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:53:09" (1/1) ... [2024-11-13 15:53:09,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ca651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:09, skipping insertion in model container [2024-11-13 15:53:09,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:53:09" (1/1) ... [2024-11-13 15:53:10,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:53:10,954 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:10,983 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:10,990 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,000 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,010 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,050 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,050 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,053 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,053 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,056 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,059 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,060 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,061 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,062 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,070 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:53:11,090 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-13 15:53:11,123 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:53:11,217 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,232 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,234 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,237 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,243 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,263 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,264 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,266 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,266 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,268 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,270 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,271 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,271 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,272 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,275 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:53:11,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:53:11,282 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:53:11,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:53:11,548 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:53:11,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11 WrapperNode [2024-11-13 15:53:11,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:53:11,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:53:11,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:53:11,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:53:11,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:11,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:11,805 INFO L138 Inliner]: procedures = 180, calls = 775, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3027 [2024-11-13 15:53:11,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:53:11,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:53:11,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:53:11,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:53:11,817 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:11,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:11,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:11,998 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]. [2024-11-13 15:53:11,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:11,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:12,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:12,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:12,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:12,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:12,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:53:12,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:53:12,221 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:53:12,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:53:12,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (1/1) ... [2024-11-13 15:53:12,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:53:12,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:53:12,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:53:12,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:53:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-13 15:53:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-13 15:53:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 15:53:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 15:53:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-13 15:53:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 15:53:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 15:53:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 15:53:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:53:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:53:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 15:53:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 15:53:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 15:53:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 15:53:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 15:53:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 15:53:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:53:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:53:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 15:53:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 15:53:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 15:53:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:53:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 15:53:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 15:53:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 15:53:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:53:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 15:53:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 15:53:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 15:53:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:53:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 15:53:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 15:53:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:53:12,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:53:12,679 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:53:12,682 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:53:12,708 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 15:53:12,786 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 15:53:12,837 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 15:53:21,180 INFO L? ?]: Removed 1595 outVars from TransFormulas that were not future-live. [2024-11-13 15:53:21,180 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:53:21,269 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:53:21,269 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-13 15:53:21,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:53:21 BoogieIcfgContainer [2024-11-13 15:53:21,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:53:21,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:53:21,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:53:21,284 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:53:21,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:53:09" (1/3) ... [2024-11-13 15:53:21,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272bad49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:53:21, skipping insertion in model container [2024-11-13 15:53:21,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:11" (2/3) ... [2024-11-13 15:53:21,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272bad49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:53:21, skipping insertion in model container [2024-11-13 15:53:21,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:53:21" (3/3) ... [2024-11-13 15:53:21,288 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test9-2.i [2024-11-13 15:53:21,302 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:53:21,303 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test9-2.i that has 6 procedures, 2082 locations, 1 initial locations, 38 loop locations, and 529 error locations. [2024-11-13 15:53:21,389 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:53:21,404 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;@244646f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:53:21,404 INFO L334 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2024-11-13 15:53:21,415 INFO L276 IsEmpty]: Start isEmpty. Operand has 2072 states, 1037 states have (on average 2.110896817743491) internal successors, (2189), 2065 states have internal predecessors, (2189), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-13 15:53:21,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 15:53:21,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:53:21,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 15:53:21,423 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)] === [2024-11-13 15:53:21,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:53:21,429 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-13 15:53:21,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:53:21,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [495736901] [2024-11-13 15:53:21,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:53:21,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:53:21,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:53:21,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:53:21,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:53:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:53:21,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:53:21,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:53:21,744 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 [2024-11-13 15:53:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:53:21,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:53:21,775 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:53:21,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495736901] [2024-11-13 15:53:21,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495736901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:53:21,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:53:21,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:53:21,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272365447] [2024-11-13 15:53:21,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:53:21,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:53:21,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:53:21,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:53:21,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:53:21,823 INFO L87 Difference]: Start difference. First operand has 2072 states, 1037 states have (on average 2.110896817743491) internal successors, (2189), 2065 states have internal predecessors, (2189), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) 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) [2024-11-13 15:53:26,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:53:26,090 INFO L93 Difference]: Finished difference Result 2237 states and 3304 transitions. [2024-11-13 15:53:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:53:26,094 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 [2024-11-13 15:53:26,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:53:26,154 INFO L225 Difference]: With dead ends: 2237 [2024-11-13 15:53:26,154 INFO L226 Difference]: Without dead ends: 2235 [2024-11-13 15:53:26,158 INFO L431 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 [2024-11-13 15:53:26,163 INFO L432 NwaCegarLoop]: 2639 mSDtfsCounter, 1973 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2476 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:53:26,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2476 Valid, 2794 Invalid, 1156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 15:53:26,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2024-11-13 15:53:26,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2056. [2024-11-13 15:53:26,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 1039 states have (on average 2.026948989412897) internal successors, (2106), 2049 states have internal predecessors, (2106), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-13 15:53:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 3114 transitions. [2024-11-13 15:53:27,002 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 3114 transitions. Word has length 3 [2024-11-13 15:53:27,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:53:27,002 INFO L471 AbstractCegarLoop]: Abstraction has 2056 states and 3114 transitions. [2024-11-13 15:53:27,002 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) [2024-11-13 15:53:27,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 3114 transitions. [2024-11-13 15:53:27,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 15:53:27,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:53:27,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 15:53:27,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:53:27,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:53:27,208 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)] === [2024-11-13 15:53:27,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:53:27,209 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-13 15:53:27,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:53:27,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975534956] [2024-11-13 15:53:27,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:53:27,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:53:27,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:53:27,212 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:53:27,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:53:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:53:27,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:53:27,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:53:27,398 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 [2024-11-13 15:53:27,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:53:27,416 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:53:27,416 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:53:27,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975534956] [2024-11-13 15:53:27,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975534956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:53:27,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:53:27,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:53:27,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585422856] [2024-11-13 15:53:27,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:53:27,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:53:27,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:53:27,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:53:27,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:53:27,420 INFO L87 Difference]: Start difference. First operand 2056 states and 3114 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) [2024-11-13 15:53:32,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:53:32,783 INFO L93 Difference]: Finished difference Result 3472 states and 5563 transitions. [2024-11-13 15:53:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:53:32,784 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 [2024-11-13 15:53:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:53:32,808 INFO L225 Difference]: With dead ends: 3472 [2024-11-13 15:53:32,808 INFO L226 Difference]: Without dead ends: 3472 [2024-11-13 15:53:32,809 INFO L431 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 [2024-11-13 15:53:32,809 INFO L432 NwaCegarLoop]: 3015 mSDtfsCounter, 1448 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1948 SdHoareTripleChecker+Valid, 5101 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:53:32,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1948 Valid, 5101 Invalid, 1215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 15:53:32,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2024-11-13 15:53:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 3184. [2024-11-13 15:53:33,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 1668 states have (on average 2.0035971223021583) internal successors, (3342), 3177 states have internal predecessors, (3342), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:53:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 5350 transitions. [2024-11-13 15:53:33,282 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 5350 transitions. Word has length 3 [2024-11-13 15:53:33,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:53:33,282 INFO L471 AbstractCegarLoop]: Abstraction has 3184 states and 5350 transitions. [2024-11-13 15:53:33,282 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) [2024-11-13 15:53:33,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 5350 transitions. [2024-11-13 15:53:33,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:53:33,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:53:33,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:53:33,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:53:33,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:53:33,484 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)] === [2024-11-13 15:53:33,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:53:33,485 INFO L85 PathProgramCache]: Analyzing trace with hash 458521935, now seen corresponding path program 1 times [2024-11-13 15:53:33,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:53:33,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933504837] [2024-11-13 15:53:33,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:53:33,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:53:33,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:53:33,491 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:53:33,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:53:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:53:33,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 15:53:33,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:53:33,691 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 [2024-11-13 15:53:33,783 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-13 15:53:33,784 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 [2024-11-13 15:53:33,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:53:33,930 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:53:33,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:53:33,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933504837] [2024-11-13 15:53:33,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933504837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:53:33,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:53:33,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:53:33,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049948071] [2024-11-13 15:53:33,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:53:33,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:53:33,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:53:33,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:53:33,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:53:33,932 INFO L87 Difference]: Start difference. First operand 3184 states and 5350 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:53:51,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:53:51,176 INFO L93 Difference]: Finished difference Result 5174 states and 8314 transitions. [2024-11-13 15:53:51,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:53:51,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 15:53:51,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:53:51,203 INFO L225 Difference]: With dead ends: 5174 [2024-11-13 15:53:51,203 INFO L226 Difference]: Without dead ends: 5174 [2024-11-13 15:53:51,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:53:51,207 INFO L432 NwaCegarLoop]: 5032 mSDtfsCounter, 3191 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 4561 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4191 SdHoareTripleChecker+Valid, 8204 SdHoareTripleChecker+Invalid, 4572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:53:51,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4191 Valid, 8204 Invalid, 4572 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 4561 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2024-11-13 15:53:51,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5174 states. [2024-11-13 15:53:51,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5174 to 3332. [2024-11-13 15:53:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 1816 states have (on average 1.997797356828194) internal successors, (3628), 3325 states have internal predecessors, (3628), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:53:51,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 5636 transitions. [2024-11-13 15:53:51,646 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 5636 transitions. Word has length 7 [2024-11-13 15:53:51,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:53:51,647 INFO L471 AbstractCegarLoop]: Abstraction has 3332 states and 5636 transitions. [2024-11-13 15:53:51,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:53:51,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 5636 transitions. [2024-11-13 15:53:51,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 15:53:51,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:53:51,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:53:51,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:53:51,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:53:51,852 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:53:51,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:53:51,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278099, now seen corresponding path program 1 times [2024-11-13 15:53:51,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:53:51,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369946582] [2024-11-13 15:53:51,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:53:51,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:53:51,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:53:51,856 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:53:51,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:53:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:53:52,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:53:52,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:53:52,044 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 [2024-11-13 15:53:52,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:53:52,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:53:52,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:53:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369946582] [2024-11-13 15:53:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369946582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:53:52,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:53:52,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:53:52,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432315055] [2024-11-13 15:53:52,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:53:52,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:53:52,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:53:52,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:53:52,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:53:52,087 INFO L87 Difference]: Start difference. First operand 3332 states and 5636 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:53:57,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:53:57,002 INFO L93 Difference]: Finished difference Result 5762 states and 10192 transitions. [2024-11-13 15:53:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:53:57,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-13 15:53:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:53:57,038 INFO L225 Difference]: With dead ends: 5762 [2024-11-13 15:53:57,038 INFO L226 Difference]: Without dead ends: 5762 [2024-11-13 15:53:57,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:53:57,040 INFO L432 NwaCegarLoop]: 5022 mSDtfsCounter, 1516 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 7450 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:53:57,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 7450 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-13 15:53:57,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2024-11-13 15:53:57,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 3359. [2024-11-13 15:53:57,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3359 states, 1853 states have (on average 1.988667026443605) internal successors, (3685), 3352 states have internal predecessors, (3685), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:53:57,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 5693 transitions. [2024-11-13 15:53:57,712 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 5693 transitions. Word has length 8 [2024-11-13 15:53:57,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:53:57,712 INFO L471 AbstractCegarLoop]: Abstraction has 3359 states and 5693 transitions. [2024-11-13 15:53:57,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:53:57,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 5693 transitions. [2024-11-13 15:53:57,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 15:53:57,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:53:57,713 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:53:57,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:53:57,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:53:57,917 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:53:57,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:53:57,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278098, now seen corresponding path program 1 times [2024-11-13 15:53:57,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:53:57,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726925284] [2024-11-13 15:53:57,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:53:57,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:53:57,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:53:57,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:53:57,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:53:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:53:58,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:53:58,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:53:58,104 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 [2024-11-13 15:53:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:53:58,125 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:53:58,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:53:58,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726925284] [2024-11-13 15:53:58,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726925284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:53:58,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:53:58,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:53:58,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857074654] [2024-11-13 15:53:58,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:53:58,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:53:58,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:53:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:53:58,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:53:58,127 INFO L87 Difference]: Start difference. First operand 3359 states and 5693 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:54:01,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:01,579 INFO L93 Difference]: Finished difference Result 4529 states and 7870 transitions. [2024-11-13 15:54:01,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:54:01,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-13 15:54:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:01,605 INFO L225 Difference]: With dead ends: 4529 [2024-11-13 15:54:01,605 INFO L226 Difference]: Without dead ends: 4529 [2024-11-13 15:54:01,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:54:01,606 INFO L432 NwaCegarLoop]: 4786 mSDtfsCounter, 1765 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 7045 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:01,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 7045 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 15:54:01,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2024-11-13 15:54:02,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 3312. [2024-11-13 15:54:02,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 1853 states have (on average 1.9552077711818672) internal successors, (3623), 3305 states have internal predecessors, (3623), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:54:02,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 5631 transitions. [2024-11-13 15:54:02,154 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 5631 transitions. Word has length 8 [2024-11-13 15:54:02,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:02,154 INFO L471 AbstractCegarLoop]: Abstraction has 3312 states and 5631 transitions. [2024-11-13 15:54:02,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:54:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 5631 transitions. [2024-11-13 15:54:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 15:54:02,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:02,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:54:02,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:54:02,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:02,356 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)] === [2024-11-13 15:54:02,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:02,357 INFO L85 PathProgramCache]: Analyzing trace with hash -637876686, now seen corresponding path program 1 times [2024-11-13 15:54:02,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:02,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764556603] [2024-11-13 15:54:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:02,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:02,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:02,360 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:02,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:54:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:02,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:54:02,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:02,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:02,659 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:02,659 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:02,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764556603] [2024-11-13 15:54:02,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764556603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:02,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:02,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:54:02,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334816773] [2024-11-13 15:54:02,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:02,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:54:02,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:02,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:54:02,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:54:02,661 INFO L87 Difference]: Start difference. First operand 3312 states and 5631 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) [2024-11-13 15:54:03,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:03,119 INFO L93 Difference]: Finished difference Result 4570 states and 7785 transitions. [2024-11-13 15:54:03,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:54:03,120 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 [2024-11-13 15:54:03,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:03,143 INFO L225 Difference]: With dead ends: 4570 [2024-11-13 15:54:03,143 INFO L226 Difference]: Without dead ends: 4570 [2024-11-13 15:54:03,144 INFO L431 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 [2024-11-13 15:54:03,145 INFO L432 NwaCegarLoop]: 3116 mSDtfsCounter, 1473 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:03,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 6079 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:54:03,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2024-11-13 15:54:03,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4300. [2024-11-13 15:54:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 2341 states have (on average 1.9551473729175566) internal successors, (4577), 4293 states have internal predecessors, (4577), 1505 states have call successors, (1505), 3 states have call predecessors, (1505), 2 states have return successors, (1503), 6 states have call predecessors, (1503), 1503 states have call successors, (1503) [2024-11-13 15:54:03,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 7585 transitions. [2024-11-13 15:54:03,886 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 7585 transitions. Word has length 11 [2024-11-13 15:54:03,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:03,886 INFO L471 AbstractCegarLoop]: Abstraction has 4300 states and 7585 transitions. [2024-11-13 15:54:03,887 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) [2024-11-13 15:54:03,887 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 7585 transitions. [2024-11-13 15:54:03,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 15:54:03,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:03,887 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:54:03,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:54:04,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:04,088 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)] === [2024-11-13 15:54:04,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:04,089 INFO L85 PathProgramCache]: Analyzing trace with hash -2024510344, now seen corresponding path program 1 times [2024-11-13 15:54:04,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:04,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409928126] [2024-11-13 15:54:04,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:04,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:04,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:04,096 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:04,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:54:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:04,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:54:04,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:04,345 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:04,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:04,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409928126] [2024-11-13 15:54:04,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409928126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:04,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:04,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:54:04,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94332096] [2024-11-13 15:54:04,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:04,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:54:04,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:04,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:54:04,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:54:04,347 INFO L87 Difference]: Start difference. First operand 4300 states and 7585 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) [2024-11-13 15:54:11,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:11,116 INFO L93 Difference]: Finished difference Result 4468 states and 7716 transitions. [2024-11-13 15:54:11,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:54:11,117 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 [2024-11-13 15:54:11,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:11,135 INFO L225 Difference]: With dead ends: 4468 [2024-11-13 15:54:11,135 INFO L226 Difference]: Without dead ends: 4468 [2024-11-13 15:54:11,136 INFO L431 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 [2024-11-13 15:54:11,136 INFO L432 NwaCegarLoop]: 2595 mSDtfsCounter, 1971 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2474 SdHoareTripleChecker+Valid, 4241 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:11,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2474 Valid, 4241 Invalid, 2586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-13 15:54:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4468 states. [2024-11-13 15:54:11,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4468 to 4277. [2024-11-13 15:54:11,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 2341 states have (on average 1.9256727894062367) internal successors, (4508), 4270 states have internal predecessors, (4508), 1505 states have call successors, (1505), 3 states have call predecessors, (1505), 2 states have return successors, (1503), 6 states have call predecessors, (1503), 1503 states have call successors, (1503) [2024-11-13 15:54:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 7516 transitions. [2024-11-13 15:54:11,653 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 7516 transitions. Word has length 13 [2024-11-13 15:54:11,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:11,654 INFO L471 AbstractCegarLoop]: Abstraction has 4277 states and 7516 transitions. [2024-11-13 15:54:11,655 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) [2024-11-13 15:54:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 7516 transitions. [2024-11-13 15:54:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 15:54:11,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:11,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:54:11,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 15:54:11,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:11,860 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)] === [2024-11-13 15:54:11,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:11,861 INFO L85 PathProgramCache]: Analyzing trace with hash -2024510343, now seen corresponding path program 1 times [2024-11-13 15:54:11,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:11,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761704118] [2024-11-13 15:54:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:11,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:11,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:11,865 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:11,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:54:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:12,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:54:12,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:12,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:12,070 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:12,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761704118] [2024-11-13 15:54:12,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761704118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:12,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:12,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:54:12,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510539792] [2024-11-13 15:54:12,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:12,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:54:12,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:12,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:54:12,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:54:12,072 INFO L87 Difference]: Start difference. First operand 4277 states and 7516 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2024-11-13 15:54:12,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:12,148 INFO L93 Difference]: Finished difference Result 4211 states and 7423 transitions. [2024-11-13 15:54:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:54:12,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2024-11-13 15:54:12,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:12,167 INFO L225 Difference]: With dead ends: 4211 [2024-11-13 15:54:12,167 INFO L226 Difference]: Without dead ends: 4211 [2024-11-13 15:54:12,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:54:12,168 INFO L432 NwaCegarLoop]: 2981 mSDtfsCounter, 61 mSDsluCounter, 2928 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5909 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:12,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5909 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:54:12,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4211 states. [2024-11-13 15:54:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4211 to 4211. [2024-11-13 15:54:12,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4211 states, 2287 states have (on average 1.930476606908614) internal successors, (4415), 4204 states have internal predecessors, (4415), 1505 states have call successors, (1505), 3 states have call predecessors, (1505), 2 states have return successors, (1503), 6 states have call predecessors, (1503), 1503 states have call successors, (1503) [2024-11-13 15:54:12,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4211 states to 4211 states and 7423 transitions. [2024-11-13 15:54:12,579 INFO L78 Accepts]: Start accepts. Automaton has 4211 states and 7423 transitions. Word has length 13 [2024-11-13 15:54:12,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:12,579 INFO L471 AbstractCegarLoop]: Abstraction has 4211 states and 7423 transitions. [2024-11-13 15:54:12,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2024-11-13 15:54:12,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4211 states and 7423 transitions. [2024-11-13 15:54:12,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 15:54:12,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:12,580 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:54:12,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 15:54:12,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:12,780 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)] === [2024-11-13 15:54:12,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:12,781 INFO L85 PathProgramCache]: Analyzing trace with hash -2038949132, now seen corresponding path program 1 times [2024-11-13 15:54:12,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:12,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [709319311] [2024-11-13 15:54:12,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:12,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:12,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:12,786 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:12,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 15:54:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:12,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:54:12,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:12,996 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 15:54:12,997 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 15:54:13,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2024-11-13 15:54:13,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:54:13,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 22 [2024-11-13 15:54:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:13,096 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:13,096 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:13,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709319311] [2024-11-13 15:54:13,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709319311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:13,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:13,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:54:13,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528115293] [2024-11-13 15:54:13,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:13,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:54:13,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:13,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:54:13,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:54:13,097 INFO L87 Difference]: Start difference. First operand 4211 states and 7423 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) [2024-11-13 15:54:15,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:15,731 INFO L93 Difference]: Finished difference Result 5939 states and 10135 transitions. [2024-11-13 15:54:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:54:15,732 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 [2024-11-13 15:54:15,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:15,760 INFO L225 Difference]: With dead ends: 5939 [2024-11-13 15:54:15,760 INFO L226 Difference]: Without dead ends: 5939 [2024-11-13 15:54:15,760 INFO L431 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 [2024-11-13 15:54:15,761 INFO L432 NwaCegarLoop]: 3237 mSDtfsCounter, 1912 mSDsluCounter, 5685 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 8922 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:15,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 8922 Invalid, 608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 15:54:15,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2024-11-13 15:54:16,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 3140. [2024-11-13 15:54:16,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 1716 states have (on average 1.9318181818181819) internal successors, (3315), 3133 states have internal predecessors, (3315), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:54:16,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 5323 transitions. [2024-11-13 15:54:16,551 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 5323 transitions. Word has length 14 [2024-11-13 15:54:16,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:16,552 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 5323 transitions. [2024-11-13 15:54:16,552 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) [2024-11-13 15:54:16,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 5323 transitions. [2024-11-13 15:54:16,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 15:54:16,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:16,553 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:54:16,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 15:54:16,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:16,753 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)] === [2024-11-13 15:54:16,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:16,754 INFO L85 PathProgramCache]: Analyzing trace with hash 183846302, now seen corresponding path program 1 times [2024-11-13 15:54:16,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:16,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965256414] [2024-11-13 15:54:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:16,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:16,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:16,758 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:16,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 15:54:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:16,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:54:16,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:16,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 15:54:17,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:17,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:17,067 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:17,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965256414] [2024-11-13 15:54:17,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965256414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:17,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:17,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:54:17,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535677249] [2024-11-13 15:54:17,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:17,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:54:17,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:17,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:54:17,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:54:17,070 INFO L87 Difference]: Start difference. First operand 3140 states and 5323 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-13 15:54:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:23,289 INFO L93 Difference]: Finished difference Result 3125 states and 5285 transitions. [2024-11-13 15:54:23,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:54:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2024-11-13 15:54:23,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:23,302 INFO L225 Difference]: With dead ends: 3125 [2024-11-13 15:54:23,302 INFO L226 Difference]: Without dead ends: 3125 [2024-11-13 15:54:23,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:54:23,303 INFO L432 NwaCegarLoop]: 2610 mSDtfsCounter, 1758 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 4164 SdHoareTripleChecker+Invalid, 2506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:23,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 4164 Invalid, 2506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-13 15:54:23,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3125 states. [2024-11-13 15:54:23,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3125 to 3117. [2024-11-13 15:54:23,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 1716 states have (on average 1.905011655011655) internal successors, (3269), 3110 states have internal predecessors, (3269), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:54:23,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 5277 transitions. [2024-11-13 15:54:23,641 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 5277 transitions. Word has length 18 [2024-11-13 15:54:23,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:23,641 INFO L471 AbstractCegarLoop]: Abstraction has 3117 states and 5277 transitions. [2024-11-13 15:54:23,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-13 15:54:23,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 5277 transitions. [2024-11-13 15:54:23,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 15:54:23,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:23,642 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:54:23,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 15:54:23,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:23,844 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)] === [2024-11-13 15:54:23,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:23,846 INFO L85 PathProgramCache]: Analyzing trace with hash 183846303, now seen corresponding path program 1 times [2024-11-13 15:54:23,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:23,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1734031171] [2024-11-13 15:54:23,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:23,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:23,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:23,848 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:23,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 15:54:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:24,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:54:24,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:24,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:24,080 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:24,081 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:24,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734031171] [2024-11-13 15:54:24,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734031171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:24,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:24,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:54:24,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463158768] [2024-11-13 15:54:24,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:24,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:54:24,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:24,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:54:24,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:54:24,082 INFO L87 Difference]: Start difference. First operand 3117 states and 5277 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-13 15:54:24,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:24,149 INFO L93 Difference]: Finished difference Result 3069 states and 5215 transitions. [2024-11-13 15:54:24,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:54:24,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2024-11-13 15:54:24,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:24,161 INFO L225 Difference]: With dead ends: 3069 [2024-11-13 15:54:24,161 INFO L226 Difference]: Without dead ends: 3069 [2024-11-13 15:54:24,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:54:24,162 INFO L432 NwaCegarLoop]: 2927 mSDtfsCounter, 61 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5801 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:24,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5801 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:54:24,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2024-11-13 15:54:24,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 3069. [2024-11-13 15:54:24,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 1680 states have (on average 1.9089285714285715) internal successors, (3207), 3062 states have internal predecessors, (3207), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:54:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 5215 transitions. [2024-11-13 15:54:24,600 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 5215 transitions. Word has length 18 [2024-11-13 15:54:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:24,601 INFO L471 AbstractCegarLoop]: Abstraction has 3069 states and 5215 transitions. [2024-11-13 15:54:24,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-13 15:54:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 5215 transitions. [2024-11-13 15:54:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 15:54:24,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:24,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:54:24,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 15:54:24,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:24,806 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:54:24,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 582633304, now seen corresponding path program 1 times [2024-11-13 15:54:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:24,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102831056] [2024-11-13 15:54:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:24,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:24,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:24,811 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:24,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 15:54:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:25,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:54:25,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:25,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:25,059 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:25,060 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:25,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102831056] [2024-11-13 15:54:25,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102831056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:25,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:25,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:54:25,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328561960] [2024-11-13 15:54:25,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:25,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:54:25,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:25,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:54:25,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:54:25,061 INFO L87 Difference]: Start difference. First operand 3069 states and 5215 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-13 15:54:25,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:25,217 INFO L93 Difference]: Finished difference Result 3046 states and 5171 transitions. [2024-11-13 15:54:25,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:54:25,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-11-13 15:54:25,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:25,230 INFO L225 Difference]: With dead ends: 3046 [2024-11-13 15:54:25,230 INFO L226 Difference]: Without dead ends: 3046 [2024-11-13 15:54:25,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:54:25,231 INFO L432 NwaCegarLoop]: 2889 mSDtfsCounter, 45 mSDsluCounter, 5755 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 8644 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:25,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 8644 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:54:25,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2024-11-13 15:54:25,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 3046. [2024-11-13 15:54:25,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 1664 states have (on average 1.9008413461538463) internal successors, (3163), 3039 states have internal predecessors, (3163), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:54:25,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 5171 transitions. [2024-11-13 15:54:25,640 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 5171 transitions. Word has length 20 [2024-11-13 15:54:25,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:25,640 INFO L471 AbstractCegarLoop]: Abstraction has 3046 states and 5171 transitions. [2024-11-13 15:54:25,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-13 15:54:25,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 5171 transitions. [2024-11-13 15:54:25,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 15:54:25,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:25,641 INFO L215 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] [2024-11-13 15:54:25,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 15:54:25,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:25,842 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:54:25,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:25,842 INFO L85 PathProgramCache]: Analyzing trace with hash -276786842, now seen corresponding path program 1 times [2024-11-13 15:54:25,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:25,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1987474476] [2024-11-13 15:54:25,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:25,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:25,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:25,846 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:25,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 15:54:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:26,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:54:26,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:26,094 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 [2024-11-13 15:54:26,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:26,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:26,438 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:26,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987474476] [2024-11-13 15:54:26,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987474476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:26,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:26,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:54:26,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351031379] [2024-11-13 15:54:26,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:26,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:54:26,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:26,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:54:26,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:54:26,439 INFO L87 Difference]: Start difference. First operand 3046 states and 5171 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-13 15:54:34,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:34,695 INFO L93 Difference]: Finished difference Result 5342 states and 9481 transitions. [2024-11-13 15:54:34,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:54:34,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-13 15:54:34,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:34,716 INFO L225 Difference]: With dead ends: 5342 [2024-11-13 15:54:34,717 INFO L226 Difference]: Without dead ends: 5342 [2024-11-13 15:54:34,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:54:34,718 INFO L432 NwaCegarLoop]: 4921 mSDtfsCounter, 1391 mSDsluCounter, 5891 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 10812 SdHoareTripleChecker+Invalid, 2634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:34,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 10812 Invalid, 2634 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-13 15:54:34,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5342 states. [2024-11-13 15:54:35,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5342 to 3042. [2024-11-13 15:54:35,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 1664 states have (on average 1.8960336538461537) internal successors, (3155), 3035 states have internal predecessors, (3155), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:54:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 5163 transitions. [2024-11-13 15:54:35,581 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 5163 transitions. Word has length 34 [2024-11-13 15:54:35,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:35,581 INFO L471 AbstractCegarLoop]: Abstraction has 3042 states and 5163 transitions. [2024-11-13 15:54:35,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-13 15:54:35,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 5163 transitions. [2024-11-13 15:54:35,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 15:54:35,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:35,586 INFO L215 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] [2024-11-13 15:54:35,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-13 15:54:35,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:35,787 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)] === [2024-11-13 15:54:35,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:35,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1177438047, now seen corresponding path program 1 times [2024-11-13 15:54:35,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:35,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284683668] [2024-11-13 15:54:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:35,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:35,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:35,793 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:35,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 15:54:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:36,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:54:36,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:36,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:36,204 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:36,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284683668] [2024-11-13 15:54:36,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284683668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:36,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:36,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:54:36,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197662354] [2024-11-13 15:54:36,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:36,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:54:36,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:36,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:54:36,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:54:36,205 INFO L87 Difference]: Start difference. First operand 3042 states and 5163 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-13 15:54:36,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:36,295 INFO L93 Difference]: Finished difference Result 3030 states and 5143 transitions. [2024-11-13 15:54:36,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:54:36,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2024-11-13 15:54:36,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:36,302 INFO L225 Difference]: With dead ends: 3030 [2024-11-13 15:54:36,302 INFO L226 Difference]: Without dead ends: 3030 [2024-11-13 15:54:36,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:54:36,303 INFO L432 NwaCegarLoop]: 2887 mSDtfsCounter, 21 mSDsluCounter, 5743 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8630 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:36,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8630 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:54:36,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2024-11-13 15:54:36,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2024-11-13 15:54:36,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 1652 states have (on average 1.8976997578692494) internal successors, (3135), 3023 states have internal predecessors, (3135), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:54:36,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 5143 transitions. [2024-11-13 15:54:36,534 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 5143 transitions. Word has length 53 [2024-11-13 15:54:36,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:36,534 INFO L471 AbstractCegarLoop]: Abstraction has 3030 states and 5143 transitions. [2024-11-13 15:54:36,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-13 15:54:36,535 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 5143 transitions. [2024-11-13 15:54:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 15:54:36,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:36,536 INFO L215 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] [2024-11-13 15:54:36,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 15:54:36,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:36,737 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:54:36,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:36,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1861737045, now seen corresponding path program 1 times [2024-11-13 15:54:36,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:36,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1554427011] [2024-11-13 15:54:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:36,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:36,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:36,743 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:36,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 15:54:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:37,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:54:37,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:37,153 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 [2024-11-13 15:54:38,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 15:54:38,014 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 [2024-11-13 15:54:38,038 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 15:54:38,039 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 [2024-11-13 15:54:38,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:38,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:38,047 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:38,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554427011] [2024-11-13 15:54:38,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554427011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:38,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:38,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:54:38,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481824132] [2024-11-13 15:54:38,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:38,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:54:38,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:38,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:54:38,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:54:38,049 INFO L87 Difference]: Start difference. First operand 3030 states and 5143 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-11-13 15:54:47,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:47,195 INFO L93 Difference]: Finished difference Result 2992 states and 5105 transitions. [2024-11-13 15:54:47,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:54:47,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 61 [2024-11-13 15:54:47,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:47,201 INFO L225 Difference]: With dead ends: 2992 [2024-11-13 15:54:47,201 INFO L226 Difference]: Without dead ends: 2992 [2024-11-13 15:54:47,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:54:47,202 INFO L432 NwaCegarLoop]: 2458 mSDtfsCounter, 1610 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 3221 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2113 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 3263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:47,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2113 Valid, 3952 Invalid, 3263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3221 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-13 15:54:47,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2024-11-13 15:54:47,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2955. [2024-11-13 15:54:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 1615 states have (on average 1.8718266253869968) internal successors, (3023), 2948 states have internal predecessors, (3023), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:54:47,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 5031 transitions. [2024-11-13 15:54:47,605 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 5031 transitions. Word has length 61 [2024-11-13 15:54:47,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:47,606 INFO L471 AbstractCegarLoop]: Abstraction has 2955 states and 5031 transitions. [2024-11-13 15:54:47,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-11-13 15:54:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 5031 transitions. [2024-11-13 15:54:47,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:54:47,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:47,609 INFO L215 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] [2024-11-13 15:54:47,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 15:54:47,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:47,810 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:54:47,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:47,812 INFO L85 PathProgramCache]: Analyzing trace with hash -202300068, now seen corresponding path program 1 times [2024-11-13 15:54:47,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:47,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145856367] [2024-11-13 15:54:47,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:47,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:47,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:47,816 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:47,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 15:54:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:48,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:54:48,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:48,198 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 [2024-11-13 15:54:48,224 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 [2024-11-13 15:54:48,264 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 [2024-11-13 15:54:48,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:48,286 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:48,286 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:48,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145856367] [2024-11-13 15:54:48,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145856367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:48,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:48,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:54:48,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311616658] [2024-11-13 15:54:48,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:48,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:54:48,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:48,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:54:48,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:54:48,290 INFO L87 Difference]: Start difference. First operand 2955 states and 5031 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-13 15:54:51,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:51,895 INFO L93 Difference]: Finished difference Result 2954 states and 5030 transitions. [2024-11-13 15:54:51,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:54:51,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-13 15:54:51,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:51,901 INFO L225 Difference]: With dead ends: 2954 [2024-11-13 15:54:51,901 INFO L226 Difference]: Without dead ends: 2954 [2024-11-13 15:54:51,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:54:51,902 INFO L432 NwaCegarLoop]: 2860 mSDtfsCounter, 2 mSDsluCounter, 7403 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10263 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:51,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10263 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 15:54:51,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2024-11-13 15:54:52,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2954. [2024-11-13 15:54:52,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 1615 states have (on average 1.8712074303405573) internal successors, (3022), 2947 states have internal predecessors, (3022), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:54:52,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 5030 transitions. [2024-11-13 15:54:52,258 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 5030 transitions. Word has length 66 [2024-11-13 15:54:52,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:52,259 INFO L471 AbstractCegarLoop]: Abstraction has 2954 states and 5030 transitions. [2024-11-13 15:54:52,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-13 15:54:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 5030 transitions. [2024-11-13 15:54:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:54:52,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:52,260 INFO L215 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] [2024-11-13 15:54:52,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 15:54:52,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:52,465 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:54:52,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:52,466 INFO L85 PathProgramCache]: Analyzing trace with hash -202300067, now seen corresponding path program 1 times [2024-11-13 15:54:52,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:52,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908566091] [2024-11-13 15:54:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:52,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:52,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:52,492 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:52,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 15:54:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:52,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 15:54:52,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:52,912 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 [2024-11-13 15:54:52,946 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 [2024-11-13 15:54:52,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 15:54:53,035 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 21 treesize of output 9 [2024-11-13 15:54:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:53,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:53,071 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:53,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908566091] [2024-11-13 15:54:53,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908566091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:53,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:53,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:54:53,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819897336] [2024-11-13 15:54:53,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:53,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:54:53,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:53,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:54:53,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:54:53,073 INFO L87 Difference]: Start difference. First operand 2954 states and 5030 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-13 15:54:57,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:57,272 INFO L93 Difference]: Finished difference Result 2953 states and 5029 transitions. [2024-11-13 15:54:57,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:54:57,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-13 15:54:57,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:57,278 INFO L225 Difference]: With dead ends: 2953 [2024-11-13 15:54:57,278 INFO L226 Difference]: Without dead ends: 2953 [2024-11-13 15:54:57,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:54:57,279 INFO L432 NwaCegarLoop]: 2860 mSDtfsCounter, 1 mSDsluCounter, 7370 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10230 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:57,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10230 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 15:54:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2024-11-13 15:54:57,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2024-11-13 15:54:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 1614 states have (on average 1.8717472118959109) internal successors, (3021), 2946 states have internal predecessors, (3021), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:54:57,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 5029 transitions. [2024-11-13 15:54:57,522 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 5029 transitions. Word has length 66 [2024-11-13 15:54:57,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:57,523 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 5029 transitions. [2024-11-13 15:54:57,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-13 15:54:57,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 5029 transitions. [2024-11-13 15:54:57,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-13 15:54:57,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:57,524 INFO L215 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] [2024-11-13 15:54:57,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-13 15:54:57,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:57,729 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:54:57,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:57,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1468241245, now seen corresponding path program 1 times [2024-11-13 15:54:57,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:54:57,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2015570267] [2024-11-13 15:54:57,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:57,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:54:57,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:57,734 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:54:57,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 15:54:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:58,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:54:58,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:58,167 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 [2024-11-13 15:54:58,297 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 [2024-11-13 15:54:58,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:58,319 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:54:58,319 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:54:58,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015570267] [2024-11-13 15:54:58,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015570267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:58,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:58,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:54:58,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107120158] [2024-11-13 15:54:58,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:58,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:54:58,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:54:58,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:54:58,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:54:58,322 INFO L87 Difference]: Start difference. First operand 2953 states and 5029 transitions. Second operand has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-11-13 15:55:11,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:11,422 INFO L93 Difference]: Finished difference Result 2965 states and 5044 transitions. [2024-11-13 15:55:11,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:55:11,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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 74 [2024-11-13 15:55:11,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:11,433 INFO L225 Difference]: With dead ends: 2965 [2024-11-13 15:55:11,433 INFO L226 Difference]: Without dead ends: 2965 [2024-11-13 15:55:11,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:55:11,434 INFO L432 NwaCegarLoop]: 2845 mSDtfsCounter, 13 mSDsluCounter, 9244 mSDsCounter, 0 mSdLazyCounter, 4573 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 12089 SdHoareTripleChecker+Invalid, 5078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 4573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:11,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 12089 Invalid, 5078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [505 Valid, 4573 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2024-11-13 15:55:11,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2024-11-13 15:55:11,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 2959. [2024-11-13 15:55:11,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2959 states, 1619 states have (on average 1.8702903026559605) internal successors, (3028), 2951 states have internal predecessors, (3028), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 3 states have return successors, (1006), 6 states have call predecessors, (1006), 1003 states have call successors, (1006) [2024-11-13 15:55:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 5039 transitions. [2024-11-13 15:55:11,698 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 5039 transitions. Word has length 74 [2024-11-13 15:55:11,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:11,698 INFO L471 AbstractCegarLoop]: Abstraction has 2959 states and 5039 transitions. [2024-11-13 15:55:11,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-11-13 15:55:11,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 5039 transitions. [2024-11-13 15:55:11,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-13 15:55:11,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:11,700 INFO L215 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] [2024-11-13 15:55:11,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 15:55:11,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:55:11,904 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:55:11,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:11,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1468241244, now seen corresponding path program 1 times [2024-11-13 15:55:11,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:55:11,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1567872136] [2024-11-13 15:55:11,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:11,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:55:11,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:55:11,907 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:55:11,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 15:55:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:12,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:55:12,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:55:12,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:12,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:55:12,333 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:55:12,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567872136] [2024-11-13 15:55:12,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567872136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:12,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:12,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:55:12,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494762849] [2024-11-13 15:55:12,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:12,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:55:12,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:55:12,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:55:12,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:55:12,338 INFO L87 Difference]: Start difference. First operand 2959 states and 5039 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-13 15:55:12,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:12,437 INFO L93 Difference]: Finished difference Result 2956 states and 5033 transitions. [2024-11-13 15:55:12,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:55:12,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 74 [2024-11-13 15:55:12,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:12,457 INFO L225 Difference]: With dead ends: 2956 [2024-11-13 15:55:12,457 INFO L226 Difference]: Without dead ends: 2956 [2024-11-13 15:55:12,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:55:12,458 INFO L432 NwaCegarLoop]: 2860 mSDtfsCounter, 0 mSDsluCounter, 5715 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8575 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 [2024-11-13 15:55:12,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8575 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:55:12,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2024-11-13 15:55:12,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2956. [2024-11-13 15:55:12,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 1616 states have (on average 1.8712871287128714) internal successors, (3024), 2949 states have internal predecessors, (3024), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-13 15:55:12,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 5033 transitions. [2024-11-13 15:55:12,770 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 5033 transitions. Word has length 74 [2024-11-13 15:55:12,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:12,770 INFO L471 AbstractCegarLoop]: Abstraction has 2956 states and 5033 transitions. [2024-11-13 15:55:12,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-13 15:55:12,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 5033 transitions. [2024-11-13 15:55:12,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 15:55:12,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:12,772 INFO L215 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] [2024-11-13 15:55:12,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-13 15:55:12,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:55:12,973 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)] === [2024-11-13 15:55:12,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:12,974 INFO L85 PathProgramCache]: Analyzing trace with hash 44329741, now seen corresponding path program 1 times [2024-11-13 15:55:12,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:55:12,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591371226] [2024-11-13 15:55:12,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:12,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:55:12,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:55:12,978 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:55:12,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 15:55:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:13,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:55:13,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:55:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:13,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:55:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:13,547 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:55:13,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591371226] [2024-11-13 15:55:13,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591371226] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:55:13,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:55:13,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-13 15:55:13,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893285233] [2024-11-13 15:55:13,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:55:13,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:55:13,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:55:13,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:55:13,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:55:13,549 INFO L87 Difference]: Start difference. First operand 2956 states and 5033 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2024-11-13 15:55:13,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:13,855 INFO L93 Difference]: Finished difference Result 2968 states and 5050 transitions. [2024-11-13 15:55:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:55:13,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 75 [2024-11-13 15:55:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:13,869 INFO L225 Difference]: With dead ends: 2968 [2024-11-13 15:55:13,870 INFO L226 Difference]: Without dead ends: 2968 [2024-11-13 15:55:13,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:55:13,873 INFO L432 NwaCegarLoop]: 2860 mSDtfsCounter, 8 mSDsluCounter, 5718 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8578 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:13,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8578 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:55:13,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2024-11-13 15:55:14,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2966. [2024-11-13 15:55:14,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 1625 states have (on average 1.870153846153846) internal successors, (3039), 2958 states have internal predecessors, (3039), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-13 15:55:14,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 5048 transitions. [2024-11-13 15:55:14,594 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 5048 transitions. Word has length 75 [2024-11-13 15:55:14,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:14,594 INFO L471 AbstractCegarLoop]: Abstraction has 2966 states and 5048 transitions. [2024-11-13 15:55:14,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2024-11-13 15:55:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 5048 transitions. [2024-11-13 15:55:14,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 15:55:14,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:14,596 INFO L215 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] [2024-11-13 15:55:14,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-13 15:55:14,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:55:14,800 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:55:14,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:14,802 INFO L85 PathProgramCache]: Analyzing trace with hash -223464157, now seen corresponding path program 2 times [2024-11-13 15:55:14,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:55:14,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071002554] [2024-11-13 15:55:14,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:55:14,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:55:14,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:55:14,805 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:55:14,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-13 15:55:54,722 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:55:54,722 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:55:54,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:55:54,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:55:54,949 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 15:55:54,949 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 [2024-11-13 15:55:54,984 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 [2024-11-13 15:55:55,311 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:55:55,311 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 [2024-11-13 15:55:55,387 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 [2024-11-13 15:55:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:55:55,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:55:55,586 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-13 15:55:55,586 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 [2024-11-13 15:55:55,596 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1274 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem36#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1274) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2024-11-13 15:55:55,599 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:55:55,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071002554] [2024-11-13 15:55:55,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071002554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:55:55,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [939330654] [2024-11-13 15:55:55,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:55:55,600 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 15:55:55,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 15:55:55,602 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 15:55:55,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-13 15:55:57,507 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:55:57,507 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:55:57,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 15:55:57,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:55:57,736 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:57,736 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:55:58,098 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:58,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [939330654] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:55:58,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:55:58,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-11-13 15:55:58,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151514567] [2024-11-13 15:55:58,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:55:58,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 15:55:58,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:55:58,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 15:55:58,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2024-11-13 15:55:58,100 INFO L87 Difference]: Start difference. First operand 2966 states and 5048 transitions. Second operand has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 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) [2024-11-13 15:56:27,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:27,511 INFO L93 Difference]: Finished difference Result 2982 states and 5071 transitions. [2024-11-13 15:56:27,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-13 15:56:27,512 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 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 78 [2024-11-13 15:56:27,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:27,522 INFO L225 Difference]: With dead ends: 2982 [2024-11-13 15:56:27,523 INFO L226 Difference]: Without dead ends: 2978 [2024-11-13 15:56:27,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=413, Invalid=2242, Unknown=1, NotChecked=100, Total=2756 [2024-11-13 15:56:27,524 INFO L432 NwaCegarLoop]: 2571 mSDtfsCounter, 1632 mSDsluCounter, 25057 mSDsCounter, 0 mSdLazyCounter, 12945 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 27628 SdHoareTripleChecker+Invalid, 13474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 12945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:27,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 27628 Invalid, 13474 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [529 Valid, 12945 Invalid, 0 Unknown, 0 Unchecked, 27.6s Time] [2024-11-13 15:56:27,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2024-11-13 15:56:27,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2974. [2024-11-13 15:56:27,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 1634 states have (on average 1.8665850673194615) internal successors, (3050), 2966 states have internal predecessors, (3050), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-13 15:56:27,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 5059 transitions. [2024-11-13 15:56:27,888 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 5059 transitions. Word has length 78 [2024-11-13 15:56:27,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:27,888 INFO L471 AbstractCegarLoop]: Abstraction has 2974 states and 5059 transitions. [2024-11-13 15:56:27,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 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) [2024-11-13 15:56:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 5059 transitions. [2024-11-13 15:56:27,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 15:56:27,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:27,892 INFO L215 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] [2024-11-13 15:56:27,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-13 15:56:28,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-13 15:56:28,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:28,293 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)] === [2024-11-13 15:56:28,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:28,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1313501980, now seen corresponding path program 1 times [2024-11-13 15:56:28,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:56:28,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [747117976] [2024-11-13 15:56:28,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:28,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:28,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:56:28,301 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:56:28,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-13 15:56:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:28,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 15:56:28,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:56:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:29,105 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:56:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:29,962 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:56:29,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747117976] [2024-11-13 15:56:29,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747117976] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:56:29,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:56:29,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-13 15:56:29,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219917085] [2024-11-13 15:56:29,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:56:29,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 15:56:29,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:56:29,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 15:56:29,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-13 15:56:29,964 INFO L87 Difference]: Start difference. First operand 2974 states and 5059 transitions. Second operand has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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) [2024-11-13 15:56:32,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:32,989 INFO L93 Difference]: Finished difference Result 2998 states and 5098 transitions. [2024-11-13 15:56:32,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-13 15:56:32,991 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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 84 [2024-11-13 15:56:32,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:33,003 INFO L225 Difference]: With dead ends: 2998 [2024-11-13 15:56:33,003 INFO L226 Difference]: Without dead ends: 2992 [2024-11-13 15:56:33,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-13 15:56:33,006 INFO L432 NwaCegarLoop]: 2860 mSDtfsCounter, 25 mSDsluCounter, 31429 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 34289 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:33,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 34289 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 15:56:33,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2024-11-13 15:56:33,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2992. [2024-11-13 15:56:33,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 1652 states have (on average 1.8601694915254237) internal successors, (3073), 2984 states have internal predecessors, (3073), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-13 15:56:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 5082 transitions. [2024-11-13 15:56:33,269 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 5082 transitions. Word has length 84 [2024-11-13 15:56:33,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:33,269 INFO L471 AbstractCegarLoop]: Abstraction has 2992 states and 5082 transitions. [2024-11-13 15:56:33,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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) [2024-11-13 15:56:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 5082 transitions. [2024-11-13 15:56:33,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 15:56:33,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:33,271 INFO L215 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] [2024-11-13 15:56:33,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-13 15:56:33,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:33,475 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:56:33,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:33,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1873949596, now seen corresponding path program 2 times [2024-11-13 15:56:33,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:56:33,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854640171] [2024-11-13 15:56:33,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:56:33,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:33,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:56:33,479 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:56:33,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-13 15:57:33,340 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:57:33,340 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:57:33,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-13 15:57:33,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:33,510 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 15:57:33,510 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 [2024-11-13 15:57:33,517 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 [2024-11-13 15:57:33,563 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 [2024-11-13 15:57:33,575 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 [2024-11-13 15:57:33,715 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 [2024-11-13 15:57:33,722 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 [2024-11-13 15:57:34,336 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:57:34,337 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 [2024-11-13 15:57:34,354 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 [2024-11-13 15:57:34,418 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 [2024-11-13 15:57:34,430 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 [2024-11-13 15:57:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 15:57:34,466 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:35,119 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1900 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1900) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_ArrVal_1900 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1901 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1900) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1901) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 15:57:35,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:57:35,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854640171] [2024-11-13 15:57:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854640171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [422778600] [2024-11-13 15:57:35,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:57:35,127 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 15:57:35,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 15:57:35,132 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 15:57:35,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-13 15:57:37,033 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:57:37,033 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:57:37,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 15:57:37,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:38,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:40,954 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:40,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [422778600] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:40,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:57:40,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58 [2024-11-13 15:57:40,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070654990] [2024-11-13 15:57:40,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:40,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-13 15:57:40,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:57:40,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-13 15:57:40,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=699, Invalid=2844, Unknown=1, NotChecked=116, Total=3660 [2024-11-13 15:57:40,958 INFO L87 Difference]: Start difference. First operand 2992 states and 5082 transitions. Second operand has 58 states, 57 states have (on average 3.1228070175438596) internal successors, (178), 58 states have internal predecessors, (178), 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) [2024-11-13 15:58:26,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:26,957 INFO L93 Difference]: Finished difference Result 3035 states and 5155 transitions. [2024-11-13 15:58:26,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-13 15:58:26,957 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.1228070175438596) internal successors, (178), 58 states have internal predecessors, (178), 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 96 [2024-11-13 15:58:26,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:26,966 INFO L225 Difference]: With dead ends: 3035 [2024-11-13 15:58:26,966 INFO L226 Difference]: Without dead ends: 3027 [2024-11-13 15:58:26,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3089 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=3106, Invalid=14987, Unknown=1, NotChecked=266, Total=18360 [2024-11-13 15:58:26,971 INFO L432 NwaCegarLoop]: 2578 mSDtfsCounter, 1634 mSDsluCounter, 78810 mSDsCounter, 0 mSdLazyCounter, 16052 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 81388 SdHoareTripleChecker+Invalid, 16087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 16052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:26,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 81388 Invalid, 16087 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [35 Valid, 16052 Invalid, 0 Unknown, 0 Unchecked, 35.2s Time] [2024-11-13 15:58:26,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2024-11-13 15:58:27,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 3025. [2024-11-13 15:58:27,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 1686 states have (on average 1.8469750889679715) internal successors, (3114), 3017 states have internal predecessors, (3114), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-13 15:58:27,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 5123 transitions. [2024-11-13 15:58:27,419 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 5123 transitions. Word has length 96 [2024-11-13 15:58:27,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:27,419 INFO L471 AbstractCegarLoop]: Abstraction has 3025 states and 5123 transitions. [2024-11-13 15:58:27,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.1228070175438596) internal successors, (178), 58 states have internal predecessors, (178), 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) [2024-11-13 15:58:27,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 5123 transitions. [2024-11-13 15:58:27,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 15:58:27,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:27,421 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:27,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-13 15:58:27,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-13 15:58:27,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 15:58:27,822 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)] === [2024-11-13 15:58:27,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:27,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1582077149, now seen corresponding path program 1 times [2024-11-13 15:58:27,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:58:27,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384286002] [2024-11-13 15:58:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:27,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:58:27,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:58:27,826 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:58:27,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-13 15:58:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:28,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 111 conjuncts are in the unsatisfiable core [2024-11-13 15:58:28,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:58:28,484 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 [2024-11-13 15:58:28,498 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 15:58:28,498 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 [2024-11-13 15:58:28,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 15:58:28,537 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 [2024-11-13 15:58:28,662 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 [2024-11-13 15:58:28,669 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 [2024-11-13 15:58:29,528 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:58:29,528 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 [2024-11-13 15:58:29,539 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 [2024-11-13 15:58:29,711 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:58:29,711 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 [2024-11-13 15:58:29,722 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 [2024-11-13 15:58:29,778 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 [2024-11-13 15:58:29,786 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 [2024-11-13 15:58:29,816 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 15:58:29,816 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:58:30,154 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_2606 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_2606) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_2606 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2607 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_2606) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_2607) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-13 15:58:31,532 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_2606 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2607 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2699 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2698 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2698))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2699) .cse0 v_ArrVal_2606) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_2607) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_2606 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2699 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2698 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2699) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2698) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2606) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3)))))) is different from false [2024-11-13 15:58:31,539 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:58:31,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384286002] [2024-11-13 15:58:31,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384286002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:58:31,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1516230610] [2024-11-13 15:58:31,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:31,539 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 15:58:31,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 15:58:31,541 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 15:58:31,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-13 15:58:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:34,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-11-13 15:58:34,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:58:34,979 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 [2024-11-13 15:58:35,175 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 15:58:35,176 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 [2024-11-13 15:58:35,184 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 [2024-11-13 15:58:35,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 15:58:35,214 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 [2024-11-13 15:58:35,294 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 [2024-11-13 15:58:35,302 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 [2024-11-13 15:58:36,106 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:58:36,107 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 [2024-11-13 15:58:36,120 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 [2024-11-13 15:58:36,196 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:58:36,196 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 [2024-11-13 15:58:36,208 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 [2024-11-13 15:58:36,245 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 [2024-11-13 15:58:36,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-13 15:58:36,260 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 15:58:36,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:58:36,332 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3170 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3169 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3169) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3170) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3169 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3169) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv4 32) .cse1) (bvadd (_ bv8 32) .cse1)))))) is different from false [2024-11-13 15:58:36,367 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3169 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_3169) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3170 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3169 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_3169) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_3170) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-13 15:58:37,785 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3169 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3262 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3261 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3261) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3262) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3169) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3170 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3169 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3262 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3261 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3262))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3261) .cse2 v_ArrVal_3169) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_3170) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-13 15:58:37,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1516230610] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:58:37,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:58:37,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2024-11-13 15:58:37,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830494082] [2024-11-13 15:58:37,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:58:37,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:58:37,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:58:37,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:58:37,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=147, Unknown=12, NotChecked=140, Total=342 [2024-11-13 15:58:37,797 INFO L87 Difference]: Start difference. First operand 3025 states and 5123 transitions. Second operand has 11 states, 9 states have (on average 11.88888888888889) internal successors, (107), 11 states have internal predecessors, (107), 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) [2024-11-13 15:58:56,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:56,277 INFO L93 Difference]: Finished difference Result 3024 states and 5122 transitions. [2024-11-13 15:58:56,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:58:56,277 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 11.88888888888889) internal successors, (107), 11 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2024-11-13 15:58:56,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:56,288 INFO L225 Difference]: With dead ends: 3024 [2024-11-13 15:58:56,288 INFO L226 Difference]: Without dead ends: 3024 [2024-11-13 15:58:56,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 234 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=79, Invalid=306, Unknown=15, NotChecked=200, Total=600 [2024-11-13 15:58:56,289 INFO L432 NwaCegarLoop]: 2578 mSDtfsCounter, 1578 mSDsluCounter, 13706 mSDsCounter, 0 mSdLazyCounter, 7310 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 16284 SdHoareTripleChecker+Invalid, 7316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:56,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2080 Valid, 16284 Invalid, 7316 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 7310 Invalid, 0 Unknown, 0 Unchecked, 18.0s Time] [2024-11-13 15:58:56,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3024 states. [2024-11-13 15:58:56,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3024 to 3024. [2024-11-13 15:58:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3024 states, 1686 states have (on average 1.8463819691577699) internal successors, (3113), 3016 states have internal predecessors, (3113), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-13 15:58:56,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3024 states to 3024 states and 5122 transitions. [2024-11-13 15:58:56,674 INFO L78 Accepts]: Start accepts. Automaton has 3024 states and 5122 transitions. Word has length 121 [2024-11-13 15:58:56,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:56,674 INFO L471 AbstractCegarLoop]: Abstraction has 3024 states and 5122 transitions. [2024-11-13 15:58:56,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 11.88888888888889) internal successors, (107), 11 states have internal predecessors, (107), 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) [2024-11-13 15:58:56,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3024 states and 5122 transitions. [2024-11-13 15:58:56,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 15:58:56,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:56,676 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:56,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-13 15:58:56,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2024-11-13 15:58:57,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 15:58:57,077 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:58:57,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:57,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1582077148, now seen corresponding path program 1 times [2024-11-13 15:58:57,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:58:57,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075279718] [2024-11-13 15:58:57,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:57,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:58:57,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:58:57,081 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:58:57,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-13 15:58:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:57,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-13 15:58:57,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:58:57,902 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 15:58:57,903 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 [2024-11-13 15:58:57,920 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 [2024-11-13 15:58:58,587 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:58:58,587 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 [2024-11-13 15:58:58,707 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:58:58,707 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 [2024-11-13 15:58:58,724 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 [2024-11-13 15:58:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 15:58:58,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:58:58,796 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3683 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3683) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-13 15:58:58,805 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3683 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_3683) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-13 15:58:59,267 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-13 15:58:59,267 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 [2024-11-13 15:58:59,283 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3683 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3729 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem36#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3729))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3683)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-13 15:58:59,285 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:58:59,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075279718] [2024-11-13 15:58:59,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075279718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:58:59,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1237168671] [2024-11-13 15:58:59,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:59,285 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 15:58:59,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 15:58:59,287 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 15:58:59,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-13 15:59:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:03,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-13 15:59:03,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:59:03,105 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 7 [2024-11-13 15:59:03,271 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-13 15:59:03,271 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 [2024-11-13 15:59:03,351 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 [2024-11-13 15:59:03,527 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 [2024-11-13 15:59:04,717 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:59:04,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 15:59:04,939 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:59:04,939 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 [2024-11-13 15:59:04,967 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 [2024-11-13 15:59:05,030 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 15:59:05,030 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:59:05,053 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4152 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4152) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-13 15:59:05,062 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4152 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_4152) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-13 15:59:05,481 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4152 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4198 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4198))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4152)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 15:59:05,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1237168671] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:59:05,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:59:05,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2024-11-13 15:59:05,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996964761] [2024-11-13 15:59:05,483 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:59:05,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 15:59:05,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:59:05,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 15:59:05,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=358, Unknown=6, NotChecked=258, Total=702 [2024-11-13 15:59:05,484 INFO L87 Difference]: Start difference. First operand 3024 states and 5122 transitions. Second operand has 20 states, 17 states have (on average 7.352941176470588) internal successors, (125), 19 states have internal predecessors, (125), 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) [2024-11-13 15:59:31,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:31,610 INFO L93 Difference]: Finished difference Result 3025 states and 5123 transitions. [2024-11-13 15:59:31,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:59:31,611 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 7.352941176470588) internal successors, (125), 19 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 121 [2024-11-13 15:59:31,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:31,620 INFO L225 Difference]: With dead ends: 3025 [2024-11-13 15:59:31,620 INFO L226 Difference]: Without dead ends: 3025 [2024-11-13 15:59:31,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=513, Unknown=6, NotChecked=306, Total=930 [2024-11-13 15:59:31,621 INFO L432 NwaCegarLoop]: 2570 mSDtfsCounter, 1578 mSDsluCounter, 16443 mSDsCounter, 0 mSdLazyCounter, 12672 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 19013 SdHoareTripleChecker+Invalid, 13180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 12672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:31,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 19013 Invalid, 13180 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [508 Valid, 12672 Invalid, 0 Unknown, 0 Unchecked, 25.6s Time] [2024-11-13 15:59:31,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2024-11-13 15:59:31,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 3023. [2024-11-13 15:59:31,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3023 states, 1686 states have (on average 1.8457888493475683) internal successors, (3112), 3015 states have internal predecessors, (3112), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-13 15:59:31,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 5121 transitions. [2024-11-13 15:59:31,934 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 5121 transitions. Word has length 121 [2024-11-13 15:59:31,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:31,935 INFO L471 AbstractCegarLoop]: Abstraction has 3023 states and 5121 transitions. [2024-11-13 15:59:31,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 7.352941176470588) internal successors, (125), 19 states have internal predecessors, (125), 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) [2024-11-13 15:59:31,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 5121 transitions. [2024-11-13 15:59:31,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 15:59:31,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:31,936 INFO L215 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] [2024-11-13 15:59:31,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2024-11-13 15:59:32,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-13 15:59:32,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:59:32,337 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 15:59:32,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:32,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1310469462, now seen corresponding path program 1 times [2024-11-13 15:59:32,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:59:32,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283388375] [2024-11-13 15:59:32,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:32,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:59:32,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:59:32,339 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:59:32,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-13 15:59:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:32,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-13 15:59:32,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:59:33,081 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 15:59:33,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 15:59:33,100 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 [2024-11-13 15:59:33,434 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:59:33,434 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 [2024-11-13 15:59:33,502 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:59:33,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-13 15:59:33,571 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:59:33,571 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 [2024-11-13 15:59:33,624 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 [2024-11-13 15:59:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 15:59:33,650 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:59:33,706 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-13 15:59:33,706 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 [2024-11-13 15:59:33,714 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4635 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_4635) |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 [2024-11-13 15:59:33,724 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4635 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_4635) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse0)))) is different from false [2024-11-13 15:59:33,745 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4634 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4635 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4634)) (.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_4635) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-13 15:59:33,760 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4634 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4635 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4634))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_4635) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-13 15:59:34,223 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4634 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4635 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4681 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4681))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4634)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4635) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-13 15:59:34,225 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:59:34,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283388375] [2024-11-13 15:59:34,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283388375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:59:34,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [214936266] [2024-11-13 15:59:34,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:34,226 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 15:59:34,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 15:59:34,227 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 15:59:34,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-11-13 15:59:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:47,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-13 15:59:47,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:59:47,370 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 [2024-11-13 15:59:47,507 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-13 15:59:47,507 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 [2024-11-13 15:59:47,558 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 [2024-11-13 15:59:47,694 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 [2024-11-13 15:59:48,719 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:59:48,719 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 [2024-11-13 15:59:48,929 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:59:48,929 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 [2024-11-13 15:59:49,051 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 15:59:49,052 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 [2024-11-13 15:59:49,079 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 [2024-11-13 15:59:49,137 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 15:59:49,137 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:59:49,152 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5121 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5121) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-13 15:59:49,160 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5121 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5121) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-13 15:59:49,174 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5120 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5121 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5120))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5121)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 15:59:49,183 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5120 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5121 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5120))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5121)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 15:59:49,632 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5120 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5121 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5167 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5167))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5120)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5121)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 15:59:49,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [214936266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:59:49,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:59:49,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2024-11-13 15:59:49,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050640290] [2024-11-13 15:59:49,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:59:49,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 15:59:49,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:59:49,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 15:59:49,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=396, Unknown=10, NotChecked=490, Total=992 [2024-11-13 15:59:49,639 INFO L87 Difference]: Start difference. First operand 3023 states and 5121 transitions. Second operand has 21 states, 18 states have (on average 7.277777777777778) internal successors, (131), 21 states have internal predecessors, (131), 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) [2024-11-13 16:00:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:00:11,946 INFO L93 Difference]: Finished difference Result 3024 states and 5122 transitions. [2024-11-13 16:00:11,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:00:11,947 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 7.277777777777778) internal successors, (131), 21 states have internal predecessors, (131), 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 124 [2024-11-13 16:00:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:00:11,956 INFO L225 Difference]: With dead ends: 3024 [2024-11-13 16:00:11,956 INFO L226 Difference]: Without dead ends: 3024 [2024-11-13 16:00:11,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=109, Invalid=473, Unknown=10, NotChecked=530, Total=1122 [2024-11-13 16:00:11,957 INFO L432 NwaCegarLoop]: 2571 mSDtfsCounter, 1571 mSDsluCounter, 16961 mSDsCounter, 0 mSdLazyCounter, 10894 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 19532 SdHoareTripleChecker+Invalid, 11402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 10894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:00:11,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 19532 Invalid, 11402 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [508 Valid, 10894 Invalid, 0 Unknown, 0 Unchecked, 21.9s Time] [2024-11-13 16:00:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3024 states. [2024-11-13 16:00:12,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3024 to 3022. [2024-11-13 16:00:12,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3022 states, 1686 states have (on average 1.8451957295373667) internal successors, (3111), 3014 states have internal predecessors, (3111), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-13 16:00:12,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3022 states to 3022 states and 5120 transitions. [2024-11-13 16:00:12,356 INFO L78 Accepts]: Start accepts. Automaton has 3022 states and 5120 transitions. Word has length 124 [2024-11-13 16:00:12,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:00:12,356 INFO L471 AbstractCegarLoop]: Abstraction has 3022 states and 5120 transitions. [2024-11-13 16:00:12,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 7.277777777777778) internal successors, (131), 21 states have internal predecessors, (131), 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) [2024-11-13 16:00:12,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3022 states and 5120 transitions. [2024-11-13 16:00:12,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 16:00:12,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:00:12,359 INFO L215 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] [2024-11-13 16:00:12,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2024-11-13 16:00:12,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-13 16:00:12,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:00:12,760 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 16:00:12,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:00:12,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1310469461, now seen corresponding path program 1 times [2024-11-13 16:00:12,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:00:12,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1926922775] [2024-11-13 16:00:12,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:00:12,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:00:12,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:00:12,764 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:00:12,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-13 16:00:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:13,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-13 16:00:13,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:00:13,596 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 16:00:13,596 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 [2024-11-13 16:00:13,603 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 [2024-11-13 16:00:13,632 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 [2024-11-13 16:00:13,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 16:00:13,763 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 [2024-11-13 16:00:13,770 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 [2024-11-13 16:00:14,568 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:00:14,569 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 [2024-11-13 16:00:14,577 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 [2024-11-13 16:00:14,687 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:00:14,687 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 [2024-11-13 16:00:14,696 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 [2024-11-13 16:00:14,790 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:00:14,791 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 [2024-11-13 16:00:14,802 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 [2024-11-13 16:00:14,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-13 16:00:14,836 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 [2024-11-13 16:00:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 16:00:14,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:00:15,021 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5652 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5652) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5652 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5653 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5652) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5653) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 16:00:15,059 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_5652 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5653 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5652) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5653) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_5652 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5652) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse2) (bvadd (_ bv12 32) .cse2))))))) is different from false [2024-11-13 16:00:15,116 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5652 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5653 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5650 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5651 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5651))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5650) .cse0 v_ArrVal_5652) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_5653) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_5652 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5650 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5651 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5650) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5651) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5652) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse3 (_ bv8 32)) (bvadd .cse3 (_ bv12 32))))))) is different from false [2024-11-13 16:00:15,163 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5652 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5653 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5650 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5651 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5651))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5650) .cse1 v_ArrVal_5652) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5653) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_5652 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5650 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5651 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5650) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5651) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5652) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd (_ bv12 32) .cse4))))))) is different from false [2024-11-13 16:00:17,080 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5744 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5652 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5653 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5650 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5651 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5745))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_5651))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5744) .cse0 v_ArrVal_5650) .cse1 v_ArrVal_5652) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5653) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_5744 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5652 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5650 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5651 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5745))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5744) .cse6 v_ArrVal_5650) (select (select (store .cse7 .cse6 v_ArrVal_5651) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5652))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse5 (_ bv8 32)) (bvadd .cse5 (_ bv12 32))))))) is different from false [2024-11-13 16:00:17,091 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:00:17,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926922775] [2024-11-13 16:00:17,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926922775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:00:17,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [599342640] [2024-11-13 16:00:17,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:00:17,091 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:00:17,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 16:00:17,093 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:00:17,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-13 16:00:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:31,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-13 16:00:31,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:00:31,419 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 [2024-11-13 16:00:31,754 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 [2024-11-13 16:00:31,793 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 16:00:31,793 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 [2024-11-13 16:00:31,811 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 [2024-11-13 16:00:31,834 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 [2024-11-13 16:00:31,976 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 [2024-11-13 16:00:31,985 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 [2024-11-13 16:00:33,483 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:00:33,483 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 [2024-11-13 16:00:33,505 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 [2024-11-13 16:00:33,638 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:00:33,638 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 [2024-11-13 16:00:33,654 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 [2024-11-13 16:00:33,771 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:00:33,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-13 16:00:33,786 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 [2024-11-13 16:00:33,837 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 [2024-11-13 16:00:33,851 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 [2024-11-13 16:00:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 16:00:33,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:00:33,947 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6231 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6231) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6231 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6232 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6231) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6232) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 16:00:33,985 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6231 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6231) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6231 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6232 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6231) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_6232) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-13 16:00:34,102 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6230 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6229 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6231 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6230) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6229) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6231) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6230 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6229 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6231 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6232 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6229))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6230) .cse2 v_ArrVal_6231) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_6232) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-13 16:00:34,232 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6230 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6229 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6231 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6232 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6229))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6230) .cse1 v_ArrVal_6231) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6232) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_6230 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6229 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6231 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6230) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6229) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6231) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd (_ bv12 32) .cse4))))))) is different from false [2024-11-13 16:00:41,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [599342640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:00:41,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:00:41,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 11 [2024-11-13 16:00:41,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215995391] [2024-11-13 16:00:41,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:00:41,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:00:41,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:00:41,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:00:41,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=174, Unknown=17, NotChecked=306, Total=552 [2024-11-13 16:00:41,310 INFO L87 Difference]: Start difference. First operand 3022 states and 5120 transitions. Second operand has 12 states, 10 states have (on average 11.0) internal successors, (110), 12 states have internal predecessors, (110), 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) [2024-11-13 16:01:34,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:34,614 INFO L93 Difference]: Finished difference Result 3021 states and 5119 transitions. [2024-11-13 16:01:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 16:01:34,614 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.0) internal successors, (110), 12 states have internal predecessors, (110), 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 124 [2024-11-13 16:01:34,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:34,621 INFO L225 Difference]: With dead ends: 3021 [2024-11-13 16:01:34,621 INFO L226 Difference]: Without dead ends: 3021 [2024-11-13 16:01:34,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=98, Invalid=382, Unknown=18, NotChecked=432, Total=930 [2024-11-13 16:01:34,621 INFO L432 NwaCegarLoop]: 2577 mSDtfsCounter, 1574 mSDsluCounter, 15537 mSDsCounter, 0 mSdLazyCounter, 8304 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 18114 SdHoareTripleChecker+Invalid, 8310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:34,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2076 Valid, 18114 Invalid, 8310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 8304 Invalid, 0 Unknown, 0 Unchecked, 51.1s Time] [2024-11-13 16:01:34,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2024-11-13 16:01:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 3021. [2024-11-13 16:01:34,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3021 states, 1686 states have (on average 1.8446026097271648) internal successors, (3110), 3013 states have internal predecessors, (3110), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-13 16:01:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3021 states to 3021 states and 5119 transitions. [2024-11-13 16:01:34,813 INFO L78 Accepts]: Start accepts. Automaton has 3021 states and 5119 transitions. Word has length 124 [2024-11-13 16:01:34,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:34,814 INFO L471 AbstractCegarLoop]: Abstraction has 3021 states and 5119 transitions. [2024-11-13 16:01:34,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.0) internal successors, (110), 12 states have internal predecessors, (110), 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) [2024-11-13 16:01:34,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3021 states and 5119 transitions. [2024-11-13 16:01:34,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 16:01:34,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:34,815 INFO L215 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] [2024-11-13 16:01:34,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2024-11-13 16:01:35,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-13 16:01:35,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:35,216 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 16:01:35,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:35,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1057305923, now seen corresponding path program 1 times [2024-11-13 16:01:35,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:35,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014666101] [2024-11-13 16:01:35,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:35,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:35,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:35,219 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:35,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-13 16:01:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:36,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-13 16:01:36,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:36,585 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 16:01:36,585 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 [2024-11-13 16:01:36,654 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 [2024-11-13 16:01:37,824 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:01:37,824 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 31 treesize of output 32 [2024-11-13 16:01:38,027 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:01:38,027 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 [2024-11-13 16:01:38,240 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:01:38,240 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 [2024-11-13 16:01:38,629 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:01:38,629 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 [2024-11-13 16:01:38,682 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 [2024-11-13 16:01:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 16:01:38,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:01:38,942 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6777 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6777) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-13 16:01:38,968 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6777 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_6777) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-13 16:01:39,053 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-13 16:01:39,053 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 [2024-11-13 16:01:39,074 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6776 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6777 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6776))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6777)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem39#1.base|)) is different from false [2024-11-13 16:01:39,103 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6776 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6777 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (select (select |c_#memory_$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_6776))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6777)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse2)))) is different from false [2024-11-13 16:01:39,144 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6775 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6776 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6777 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6775)) (.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_6776))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6777)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3)))) is different from false [2024-11-13 16:01:39,174 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6775 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6776 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6777 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6775))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_6776))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6777)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-13 16:01:40,099 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6775 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6776 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6777 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6823))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6775)))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_6776))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6777)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-13 16:01:40,105 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:40,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014666101] [2024-11-13 16:01:40,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014666101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:01:40,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1330068330] [2024-11-13 16:01:40,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:40,106 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:01:40,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 16:01:40,107 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:01:40,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-11-13 16:01:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:55,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-13 16:01:55,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:55,950 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 [2024-11-13 16:01:56,587 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-13 16:01:56,587 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 [2024-11-13 16:01:56,789 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 [2024-11-13 16:01:57,283 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 [2024-11-13 16:02:00,272 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:02:00,273 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 [2024-11-13 16:02:00,760 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:02:00,761 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 [2024-11-13 16:02:01,148 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:02:01,148 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 [2024-11-13 16:02:01,511 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:02:01,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 16:02:01,588 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 [2024-11-13 16:02:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 16:02:01,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:02:02,120 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_7278) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2024-11-13 16:02:02,169 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7277 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7277))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7278)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-13 16:02:02,199 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7277 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7277))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7278)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 16:02:02,241 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7276 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7277 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7276))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7277)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7278)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 16:02:02,271 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7276 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7277 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7276))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7277)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7278)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 16:02:03,255 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7276 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7277 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7324))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7276)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7277)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7278)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 16:02:03,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1330068330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:02:03,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:02:03,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2024-11-13 16:02:03,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246138419] [2024-11-13 16:02:03,263 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:02:03,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 16:02:03,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:02:03,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 16:02:03,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=508, Unknown=25, NotChecked=754, Total=1406 [2024-11-13 16:02:03,265 INFO L87 Difference]: Start difference. First operand 3021 states and 5119 transitions. Second operand has 23 states, 20 states have (on average 6.85) internal successors, (137), 23 states have internal predecessors, (137), 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) [2024-11-13 16:03:19,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:03:19,330 INFO L93 Difference]: Finished difference Result 3022 states and 5120 transitions. [2024-11-13 16:03:19,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:03:19,330 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 6.85) internal successors, (137), 23 states have internal predecessors, (137), 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 127 [2024-11-13 16:03:19,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:03:19,334 INFO L225 Difference]: With dead ends: 3022 [2024-11-13 16:03:19,335 INFO L226 Difference]: Without dead ends: 3022 [2024-11-13 16:03:19,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=132, Invalid=596, Unknown=26, NotChecked=806, Total=1560 [2024-11-13 16:03:19,335 INFO L432 NwaCegarLoop]: 2570 mSDtfsCounter, 1566 mSDsluCounter, 19063 mSDsCounter, 0 mSdLazyCounter, 12349 mSolverCounterSat, 507 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 21633 SdHoareTripleChecker+Invalid, 12856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 12349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:03:19,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 21633 Invalid, 12856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [507 Valid, 12349 Invalid, 0 Unknown, 0 Unchecked, 75.4s Time] [2024-11-13 16:03:19,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3022 states. [2024-11-13 16:03:19,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3022 to 3020. [2024-11-13 16:03:19,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3020 states, 1686 states have (on average 1.8440094899169632) internal successors, (3109), 3012 states have internal predecessors, (3109), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-13 16:03:19,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 5118 transitions. [2024-11-13 16:03:19,550 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 5118 transitions. Word has length 127 [2024-11-13 16:03:19,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:03:19,550 INFO L471 AbstractCegarLoop]: Abstraction has 3020 states and 5118 transitions. [2024-11-13 16:03:19,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 6.85) internal successors, (137), 23 states have internal predecessors, (137), 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) [2024-11-13 16:03:19,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 5118 transitions. [2024-11-13 16:03:19,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 16:03:19,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:03:19,551 INFO L215 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] [2024-11-13 16:03:19,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2024-11-13 16:03:19,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-13 16:03:19,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:03:19,951 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-13 16:03:19,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:03:19,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1057305924, now seen corresponding path program 1 times [2024-11-13 16:03:19,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:03:19,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851236103] [2024-11-13 16:03:19,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:03:19,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:03:19,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:03:19,956 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:03:19,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-13 16:03:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:20,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 117 conjuncts are in the unsatisfiable core [2024-11-13 16:03:20,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:03:21,301 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 [2024-11-13 16:03:21,356 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 16:03:21,356 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 [2024-11-13 16:03:21,441 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 [2024-11-13 16:03:21,464 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 [2024-11-13 16:03:21,835 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 [2024-11-13 16:03:21,848 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 [2024-11-13 16:03:24,130 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:03:24,130 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 [2024-11-13 16:03:24,153 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 [2024-11-13 16:03:24,580 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:03:24,581 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 [2024-11-13 16:03:24,604 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 [2024-11-13 16:03:24,911 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:03:24,911 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 [2024-11-13 16:03:24,934 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 [2024-11-13 16:03:25,247 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:03:25,247 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 [2024-11-13 16:03:25,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-13 16:03:25,351 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 [2024-11-13 16:03:25,364 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 [2024-11-13 16:03:25,483 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 16:03:25,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:03:25,877 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 16:03:25,933 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse2) (bvadd (_ bv24 32) .cse2))))))) is different from false [2024-11-13 16:03:26,021 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7824))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7825) .cse0 v_ArrVal_7826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7825) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7824) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse3) (bvadd (_ bv24 32) .cse3)))))) is different from false [2024-11-13 16:03:26,124 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7825) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7824) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7824))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7825) .cse3 v_ArrVal_7826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-13 16:03:45,837 WARN L286 SmtUtils]: Spent 7.23s 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) [2024-11-13 16:03:48,864 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7918 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7822 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7919 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7918))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_7822))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7919) .cse1 v_ArrVal_7823) .cse2 v_ArrVal_7825) (select (select (store .cse3 .cse2 v_ArrVal_7824) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_7826))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7918 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7822 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7919 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7918))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_7822))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_7824))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7919) .cse6 v_ArrVal_7823) .cse7 v_ArrVal_7825) .cse8 v_ArrVal_7826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2024-11-13 16:03:48,931 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:03:48,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851236103] [2024-11-13 16:03:48,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851236103] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:03:48,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [191517957] [2024-11-13 16:03:48,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:03:48,931 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:03:48,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 16:03:48,934 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:03:48,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8149a11-014f-4ca9-ad69-96dab31c350d/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2024-11-13 16:04:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:07,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 120 conjuncts are in the unsatisfiable core [2024-11-13 16:04:07,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:04:07,335 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 [2024-11-13 16:04:11,464 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 16:04:11,464 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 [2024-11-13 16:04:11,600 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 [2024-11-13 16:04:11,812 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 [2024-11-13 16:04:12,016 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 [2024-11-13 16:04:13,033 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 [2024-11-13 16:04:13,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-13 16:04:26,684 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:04:26,684 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 [2024-11-13 16:04:26,822 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 [2024-11-13 16:04:28,231 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:04:28,232 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 [2024-11-13 16:04:28,369 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 [2024-11-13 16:04:29,382 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:04:29,382 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 [2024-11-13 16:04:29,522 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 [2024-11-13 16:04:30,573 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 16:04:30,574 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 62 treesize of output 57 [2024-11-13 16:04:30,711 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 [2024-11-13 16:04:31,239 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 [2024-11-13 16:04:31,308 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 [2024-11-13 16:04:31,376 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 16:04:31,376 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:04:32,023 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 16:04:32,260 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv20 32)) (bvadd .cse2 (_ bv24 32)))))))) is different from false [2024-11-13 16:04:32,642 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8421))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8422) .cse0 v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8422) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8421) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse3 (_ bv20 32)) (bvadd .cse3 (_ bv24 32))))))) is different from false [2024-11-13 16:04:32,885 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8422) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8421) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8421))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8422) .cse3 v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-13 16:04:33,386 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8419))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_8421))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8420) .cse0 v_ArrVal_8422) .cse1 v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8419))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8420) .cse6 v_ArrVal_8422) (select (select (store .cse7 .cse6 v_ArrVal_8421) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8424))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse5 (_ bv20 32)) (bvadd .cse5 (_ bv24 32))))))) is different from false [2024-11-13 16:04:33,676 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8419))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8420) .cse2 v_ArrVal_8422) (select (select (store .cse3 .cse2 v_ArrVal_8421) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_8424))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8419))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_8421))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8420) .cse5 v_ArrVal_8422) .cse6 v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse7 .cse6 v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) is different from false [2024-11-13 16:04:41,148 WARN L286 SmtUtils]: Spent 7.25s 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) [2024-11-13 16:04:46,545 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8516 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8515 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8515))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_8419))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8516) .cse1 v_ArrVal_8420) .cse2 v_ArrVal_8422) (select (select (store .cse3 .cse2 v_ArrVal_8421) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_8424))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8516 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8515 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8515))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_8419))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_8421))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8516) .cse6 v_ArrVal_8420) .cse7 v_ArrVal_8422) .cse8 v_ArrVal_8424) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) (_ bv24 32)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2024-11-13 16:04:46,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [191517957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:04:46,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:04:46,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 12 [2024-11-13 16:04:46,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599618079] [2024-11-13 16:04:46,602 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:04:46,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 16:04:46,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:04:46,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 16:04:46,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=221, Unknown=27, NotChecked=492, Total=812 [2024-11-13 16:04:46,604 INFO L87 Difference]: Start difference. First operand 3020 states and 5118 transitions. Second operand has 13 states, 11 states have (on average 10.272727272727273) internal successors, (113), 13 states have internal predecessors, (113), 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)