./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:23:55,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:23:55,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:23:55,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:23:55,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:23:55,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:23:55,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:23:55,764 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:23:55,764 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:23:55,765 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:23:55,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:23:55,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:23:55,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:23:55,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:23:55,765 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:23:55,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:23:55,766 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:23:55,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:23:55,766 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:23:55,766 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:23:55,766 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:23:55,766 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:23:55,767 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:23:55,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:23:55,767 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:23:55,767 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:23:55,767 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:23:55,770 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:23:55,770 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:23:55,771 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:23:55,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:23:55,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:23:55,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:23:55,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:23:55,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:23:55,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:23:55,773 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:23:55,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:23:55,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:23:55,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:23:55,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:23:55,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:23:55,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:23:55,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:23:55,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:23:55,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:23:55,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:23:55,775 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_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2024-11-28 04:23:56,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:23:56,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:23:56,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:23:56,214 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:23:56,215 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:23:56,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2024-11-28 04:23:59,901 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/data/a9e68e05d/d97e7141354e4eadb596f625602f9432/FLAG7dc038c9f [2024-11-28 04:24:00,476 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:24:00,477 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2024-11-28 04:24:00,502 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/data/a9e68e05d/d97e7141354e4eadb596f625602f9432/FLAG7dc038c9f [2024-11-28 04:24:00,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/data/a9e68e05d/d97e7141354e4eadb596f625602f9432 [2024-11-28 04:24:00,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:24:00,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:24:00,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:24:00,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:24:00,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:24:00,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:24:00" (1/1) ... [2024-11-28 04:24:00,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9bb4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:00, skipping insertion in model container [2024-11-28 04:24:00,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:24:00" (1/1) ... [2024-11-28 04:24:00,632 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:24:01,619 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,681 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,689 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,698 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,713 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,773 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,773 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,776 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,780 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,786 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,788 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,789 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,790 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,796 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,798 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,801 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,802 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,804 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,804 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,809 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:01,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:24:01,837 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 04:24:01,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5fea1054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:01, skipping insertion in model container [2024-11-28 04:24:01,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:24:01,839 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 04:24:01,841 INFO L158 Benchmark]: Toolchain (without parser) took 1307.92ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 69.4MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:24:01,841 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:24:01,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1305.10ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 69.4MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:24:01,845 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1305.10ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 69.4MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: 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_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:24:04,931 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:24:05,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 04:24:05,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:24:05,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:24:05,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:24:05,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:24:05,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:24:05,110 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:24:05,110 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:24:05,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:24:05,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:24:05,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:24:05,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:24:05,112 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:24:05,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:24:05,112 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:24:05,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:24:05,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:24:05,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:24:05,113 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:24:05,113 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:24:05,113 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:24:05,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:24:05,114 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:24:05,114 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:24:05,114 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:24:05,114 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:24:05,114 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:24:05,114 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:24:05,114 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:24:05,115 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:24:05,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:24:05,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:24:05,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:24:05,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:24:05,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:24:05,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:24:05,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:24:05,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:24:05,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:24:05,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:24:05,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:24:05,117 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:24:05,117 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:24:05,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:24:05,118 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:24:05,118 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:24:05,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:24:05,118 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_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2024-11-28 04:24:05,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:24:05,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:24:05,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:24:05,548 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:24:05,549 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:24:05,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2024-11-28 04:24:09,080 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/data/714db29a2/6f4715a34ae44425bcafb382e24fd99a/FLAGe3c2e163f [2024-11-28 04:24:09,537 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:24:09,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2024-11-28 04:24:09,575 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/data/714db29a2/6f4715a34ae44425bcafb382e24fd99a/FLAGe3c2e163f [2024-11-28 04:24:09,660 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/data/714db29a2/6f4715a34ae44425bcafb382e24fd99a [2024-11-28 04:24:09,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:24:09,665 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:24:09,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:24:09,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:24:09,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:24:09,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:24:09" (1/1) ... [2024-11-28 04:24:09,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4964e6af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:09, skipping insertion in model container [2024-11-28 04:24:09,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:24:09" (1/1) ... [2024-11-28 04:24:09,732 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:24:10,624 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,666 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,671 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,676 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,688 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,741 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,742 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,746 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,747 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,753 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,755 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,757 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,758 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,766 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,768 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,773 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,774 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,776 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,777 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,784 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:24:10,815 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 04:24:10,835 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:24:10,902 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,934 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,940 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,946 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:10,966 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,012 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,012 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,015 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,015 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,018 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,019 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,020 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,021 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,025 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,027 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,029 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,030 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,031 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,032 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,036 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:24:11,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:24:11,045 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:24:11,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:24:11,408 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:24:11,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11 WrapperNode [2024-11-28 04:24:11,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:24:11,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:24:11,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:24:11,411 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:24:11,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,569 INFO L138 Inliner]: procedures = 286, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1203 [2024-11-28 04:24:11,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:24:11,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:24:11,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:24:11,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:24:11,586 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,610 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,773 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 34, 12, 270]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 10, 0]. The 62 writes are split as follows [0, 4, 1, 57]. [2024-11-28 04:24:11,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,781 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,866 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:24:11,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:24:11,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:24:11,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:24:11,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (1/1) ... [2024-11-28 04:24:11,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:24:11,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:11,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:24:11,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 04:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 04:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 04:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 04:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 04:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-28 04:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 04:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 04:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-28 04:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-28 04:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-28 04:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-28 04:24:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-28 04:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:24:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:24:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:24:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-28 04:24:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-28 04:24:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:24:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:24:12,417 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:24:12,420 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:24:19,007 INFO L? ?]: Removed 1306 outVars from TransFormulas that were not future-live. [2024-11-28 04:24:19,008 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:24:19,051 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:24:19,052 INFO L312 CfgBuilder]: Removed 41 assume(true) statements. [2024-11-28 04:24:19,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:24:19 BoogieIcfgContainer [2024-11-28 04:24:19,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:24:19,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:24:19,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:24:19,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:24:19,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:24:09" (1/3) ... [2024-11-28 04:24:19,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450f046b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:24:19, skipping insertion in model container [2024-11-28 04:24:19,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:11" (2/3) ... [2024-11-28 04:24:19,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450f046b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:24:19, skipping insertion in model container [2024-11-28 04:24:19,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:24:19" (3/3) ... [2024-11-28 04:24:19,069 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-2.i [2024-11-28 04:24:19,089 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:24:19,091 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_test6-2.i that has 6 procedures, 1284 locations, 1 initial locations, 41 loop locations, and 625 error locations. [2024-11-28 04:24:19,174 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:24:19,189 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;@4cbe8e7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:24:19,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 625 error locations. [2024-11-28 04:24:19,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 1284 states, 634 states have (on average 2.2145110410094637) internal successors, (1404), 1262 states have internal predecessors, (1404), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:24:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:24:19,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:19,204 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:24:19,204 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:24:19,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:19,211 INFO L85 PathProgramCache]: Analyzing trace with hash 85465, now seen corresponding path program 1 times [2024-11-28 04:24:19,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:24:19,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1696218180] [2024-11-28 04:24:19,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:19,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:19,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:19,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:19,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:24:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:19,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:24:19,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:19,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:24:19,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:19,673 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:19,675 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:24:19,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696218180] [2024-11-28 04:24:19,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696218180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:19,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:19,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:24:19,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699221650] [2024-11-28 04:24:19,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:19,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:19,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:24:19,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:19,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:19,726 INFO L87 Difference]: Start difference. First operand has 1284 states, 634 states have (on average 2.2145110410094637) internal successors, (1404), 1262 states have internal predecessors, (1404), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:22,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:22,995 INFO L93 Difference]: Finished difference Result 1544 states and 1637 transitions. [2024-11-28 04:24:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:23,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-28 04:24:23,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:23,022 INFO L225 Difference]: With dead ends: 1544 [2024-11-28 04:24:23,022 INFO L226 Difference]: Without dead ends: 1542 [2024-11-28 04:24:23,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:23,027 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 915 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:23,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 1257 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 04:24:23,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2024-11-28 04:24:23,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1305. [2024-11-28 04:24:23,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 670 states have (on average 2.0791044776119403) internal successors, (1393), 1285 states have internal predecessors, (1393), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 04:24:23,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1427 transitions. [2024-11-28 04:24:23,129 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1427 transitions. Word has length 3 [2024-11-28 04:24:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:23,129 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1427 transitions. [2024-11-28 04:24:23,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1427 transitions. [2024-11-28 04:24:23,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:24:23,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:23,130 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:24:23,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:24:23,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:23,331 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:24:23,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:23,332 INFO L85 PathProgramCache]: Analyzing trace with hash 85466, now seen corresponding path program 1 times [2024-11-28 04:24:23,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:24:23,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816068045] [2024-11-28 04:24:23,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:23,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:23,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:23,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:23,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:24:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:23,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:24:23,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:23,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:24:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:23,550 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:23,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:24:23,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816068045] [2024-11-28 04:24:23,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816068045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:23,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:23,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:24:23,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130527280] [2024-11-28 04:24:23,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:23,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:23,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:24:23,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:23,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:23,554 INFO L87 Difference]: Start difference. First operand 1305 states and 1427 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:27,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:27,903 INFO L93 Difference]: Finished difference Result 1908 states and 2080 transitions. [2024-11-28 04:24:27,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:27,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-28 04:24:27,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:27,912 INFO L225 Difference]: With dead ends: 1908 [2024-11-28 04:24:27,913 INFO L226 Difference]: Without dead ends: 1908 [2024-11-28 04:24:27,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:27,914 INFO L435 NwaCegarLoop]: 1048 mSDtfsCounter, 636 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:27,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 1760 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 04:24:27,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2024-11-28 04:24:27,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1518. [2024-11-28 04:24:27,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 882 states have (on average 2.061224489795918) internal successors, (1818), 1496 states have internal predecessors, (1818), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:24:27,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1856 transitions. [2024-11-28 04:24:27,983 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1856 transitions. Word has length 3 [2024-11-28 04:24:27,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:27,983 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1856 transitions. [2024-11-28 04:24:27,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:27,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1856 transitions. [2024-11-28 04:24:27,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:24:27,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:27,984 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:27,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:24:28,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:28,189 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:24:28,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:28,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1875000221, now seen corresponding path program 1 times [2024-11-28 04:24:28,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:24:28,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [463576233] [2024-11-28 04:24:28,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:28,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:28,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:28,193 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:28,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:24:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:28,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:24:28,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:28,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:24:28,539 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-28 04:24:28,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2024-11-28 04:24:28,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:28,739 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:28,739 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:24:28,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463576233] [2024-11-28 04:24:28,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463576233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:28,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:28,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:28,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237237055] [2024-11-28 04:24:28,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:28,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:24:28,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:24:28,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:24:28,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:24:28,741 INFO L87 Difference]: Start difference. First operand 1518 states and 1856 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:36,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:36,884 INFO L93 Difference]: Finished difference Result 2798 states and 3038 transitions. [2024-11-28 04:24:36,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:24:36,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-28 04:24:36,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:36,895 INFO L225 Difference]: With dead ends: 2798 [2024-11-28 04:24:36,895 INFO L226 Difference]: Without dead ends: 2798 [2024-11-28 04:24:36,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:24:36,896 INFO L435 NwaCegarLoop]: 1277 mSDtfsCounter, 1566 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:36,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 2679 Invalid, 2023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-28 04:24:36,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-11-28 04:24:36,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 1668. [2024-11-28 04:24:36,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 1032 states have (on average 2.0406976744186047) internal successors, (2106), 1646 states have internal predecessors, (2106), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:24:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2144 transitions. [2024-11-28 04:24:36,952 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2144 transitions. Word has length 9 [2024-11-28 04:24:36,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:36,952 INFO L471 AbstractCegarLoop]: Abstraction has 1668 states and 2144 transitions. [2024-11-28 04:24:36,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:36,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2144 transitions. [2024-11-28 04:24:36,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 04:24:36,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:36,954 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:36,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:24:37,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:37,154 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:24:37,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:37,155 INFO L85 PathProgramCache]: Analyzing trace with hash 2004535318, now seen corresponding path program 1 times [2024-11-28 04:24:37,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:24:37,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1407305845] [2024-11-28 04:24:37,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:37,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:37,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:37,160 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:37,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:24:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:37,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:24:37,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:37,370 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 [2024-11-28 04:24:37,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:37,407 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:37,407 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:24:37,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407305845] [2024-11-28 04:24:37,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407305845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:37,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:37,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:37,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970381312] [2024-11-28 04:24:37,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:37,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:24:37,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:24:37,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:24:37,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:24:37,410 INFO L87 Difference]: Start difference. First operand 1668 states and 2144 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:41,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:41,504 INFO L93 Difference]: Finished difference Result 2216 states and 2920 transitions. [2024-11-28 04:24:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:24:41,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-28 04:24:41,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:41,513 INFO L225 Difference]: With dead ends: 2216 [2024-11-28 04:24:41,513 INFO L226 Difference]: Without dead ends: 2216 [2024-11-28 04:24:41,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:24:41,515 INFO L435 NwaCegarLoop]: 1228 mSDtfsCounter, 925 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:41,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 2521 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 04:24:41,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2024-11-28 04:24:41,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 1623. [2024-11-28 04:24:41,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1032 states have (on average 1.9835271317829457) internal successors, (2047), 1601 states have internal predecessors, (2047), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:24:41,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2085 transitions. [2024-11-28 04:24:41,561 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2085 transitions. Word has length 10 [2024-11-28 04:24:41,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:41,561 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2085 transitions. [2024-11-28 04:24:41,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:41,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2085 transitions. [2024-11-28 04:24:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 04:24:41,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:41,562 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:41,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:24:41,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:41,766 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:24:41,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:41,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2004535319, now seen corresponding path program 1 times [2024-11-28 04:24:41,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:24:41,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [964989288] [2024-11-28 04:24:41,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:41,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:41,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:41,769 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:41,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:24:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:41,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:24:41,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:41,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:24:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:42,013 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:42,013 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:24:42,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964989288] [2024-11-28 04:24:42,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964989288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:42,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:42,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:42,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288751970] [2024-11-28 04:24:42,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:42,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:24:42,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:24:42,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:24:42,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:24:42,014 INFO L87 Difference]: Start difference. First operand 1623 states and 2085 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:46,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:46,839 INFO L93 Difference]: Finished difference Result 2281 states and 2943 transitions. [2024-11-28 04:24:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:24:46,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-28 04:24:46,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:46,848 INFO L225 Difference]: With dead ends: 2281 [2024-11-28 04:24:46,849 INFO L226 Difference]: Without dead ends: 2281 [2024-11-28 04:24:46,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:24:46,849 INFO L435 NwaCegarLoop]: 1404 mSDtfsCounter, 705 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:46,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 2876 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1673 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 04:24:46,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2024-11-28 04:24:46,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 1615. [2024-11-28 04:24:46,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1034 states have (on average 1.9584139264990328) internal successors, (2025), 1593 states have internal predecessors, (2025), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:24:46,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2063 transitions. [2024-11-28 04:24:46,890 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2063 transitions. Word has length 10 [2024-11-28 04:24:46,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:46,891 INFO L471 AbstractCegarLoop]: Abstraction has 1615 states and 2063 transitions. [2024-11-28 04:24:46,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2063 transitions. [2024-11-28 04:24:46,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 04:24:46,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:46,892 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:46,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:24:47,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:47,093 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:24:47,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:47,094 INFO L85 PathProgramCache]: Analyzing trace with hash -573367350, now seen corresponding path program 1 times [2024-11-28 04:24:47,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:24:47,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [973931077] [2024-11-28 04:24:47,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:47,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:47,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:47,096 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:47,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:24:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:47,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:24:47,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:47,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:47,405 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:47,405 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:24:47,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973931077] [2024-11-28 04:24:47,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973931077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:47,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:47,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:24:47,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793096876] [2024-11-28 04:24:47,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:47,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:24:47,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:24:47,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:24:47,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:24:47,407 INFO L87 Difference]: Start difference. First operand 1615 states and 2063 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:48,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:48,486 INFO L93 Difference]: Finished difference Result 2240 states and 2833 transitions. [2024-11-28 04:24:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:24:48,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-28 04:24:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:48,493 INFO L225 Difference]: With dead ends: 2240 [2024-11-28 04:24:48,493 INFO L226 Difference]: Without dead ends: 2240 [2024-11-28 04:24:48,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:24:48,494 INFO L435 NwaCegarLoop]: 1448 mSDtfsCounter, 640 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 3940 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:48,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 3940 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:24:48,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2024-11-28 04:24:48,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 1878. [2024-11-28 04:24:48,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1294 states have (on average 1.964451313755796) internal successors, (2542), 1853 states have internal predecessors, (2542), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:24:48,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2586 transitions. [2024-11-28 04:24:48,537 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2586 transitions. Word has length 13 [2024-11-28 04:24:48,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:48,537 INFO L471 AbstractCegarLoop]: Abstraction has 1878 states and 2586 transitions. [2024-11-28 04:24:48,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:48,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2586 transitions. [2024-11-28 04:24:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 04:24:48,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:48,538 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:48,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:24:48,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:48,739 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr322REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:24:48,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1300891885, now seen corresponding path program 1 times [2024-11-28 04:24:48,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:24:48,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1619742954] [2024-11-28 04:24:48,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:48,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:48,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:48,743 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:48,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:24:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:48,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:24:48,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:48,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:48,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:48,990 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:24:48,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619742954] [2024-11-28 04:24:48,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619742954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:48,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:48,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:48,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746886427] [2024-11-28 04:24:48,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:48,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:24:48,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:24:48,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:24:48,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:24:48,991 INFO L87 Difference]: Start difference. First operand 1878 states and 2586 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) [2024-11-28 04:24:52,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:52,257 INFO L93 Difference]: Finished difference Result 2104 states and 2723 transitions. [2024-11-28 04:24:52,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:24:52,259 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 [2024-11-28 04:24:52,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:52,265 INFO L225 Difference]: With dead ends: 2104 [2024-11-28 04:24:52,265 INFO L226 Difference]: Without dead ends: 2104 [2024-11-28 04:24:52,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:24:52,266 INFO L435 NwaCegarLoop]: 931 mSDtfsCounter, 933 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:52,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 1943 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 04:24:52,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2024-11-28 04:24:52,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 1855. [2024-11-28 04:24:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1855 states, 1294 states have (on average 1.8933539412673879) internal successors, (2450), 1830 states have internal predecessors, (2450), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:24:52,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1855 states to 1855 states and 2494 transitions. [2024-11-28 04:24:52,303 INFO L78 Accepts]: Start accepts. Automaton has 1855 states and 2494 transitions. Word has length 13 [2024-11-28 04:24:52,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:52,304 INFO L471 AbstractCegarLoop]: Abstraction has 1855 states and 2494 transitions. [2024-11-28 04:24:52,304 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) [2024-11-28 04:24:52,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1855 states and 2494 transitions. [2024-11-28 04:24:52,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 04:24:52,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:52,305 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:52,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:24:52,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:52,505 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr323REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:24:52,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1300891884, now seen corresponding path program 1 times [2024-11-28 04:24:52,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:24:52,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017203685] [2024-11-28 04:24:52,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:52,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:52,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:52,508 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:52,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:24:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:52,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:24:52,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:52,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:24:52,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:52,852 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:52,852 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:24:52,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017203685] [2024-11-28 04:24:52,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017203685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:52,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:52,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:52,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572254166] [2024-11-28 04:24:52,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:52,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:24:52,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:24:52,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:24:52,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:24:52,853 INFO L87 Difference]: Start difference. First operand 1855 states and 2494 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) [2024-11-28 04:24:57,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:57,696 INFO L93 Difference]: Finished difference Result 2185 states and 2653 transitions. [2024-11-28 04:24:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:24:57,698 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 [2024-11-28 04:24:57,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:57,704 INFO L225 Difference]: With dead ends: 2185 [2024-11-28 04:24:57,704 INFO L226 Difference]: Without dead ends: 2185 [2024-11-28 04:24:57,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:24:57,705 INFO L435 NwaCegarLoop]: 1000 mSDtfsCounter, 615 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:57,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 2280 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-28 04:24:57,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2024-11-28 04:24:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 1804. [2024-11-28 04:24:57,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1243 states have (on average 1.8930008045052293) internal successors, (2353), 1779 states have internal predecessors, (2353), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:24:57,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2397 transitions. [2024-11-28 04:24:57,738 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2397 transitions. Word has length 13 [2024-11-28 04:24:57,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:57,738 INFO L471 AbstractCegarLoop]: Abstraction has 1804 states and 2397 transitions. [2024-11-28 04:24:57,738 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) [2024-11-28 04:24:57,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2397 transitions. [2024-11-28 04:24:57,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 04:24:57,739 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:57,739 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:57,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:24:57,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:57,940 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:24:57,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:57,940 INFO L85 PathProgramCache]: Analyzing trace with hash -635794835, now seen corresponding path program 1 times [2024-11-28 04:24:57,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:24:57,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918821734] [2024-11-28 04:24:57,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:57,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:57,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:57,944 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:57,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:24:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:58,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:24:58,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:58,167 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:24:58,168 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:24:58,168 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:24:58,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-28 04:24:58,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:24:58,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-28 04:24:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:58,270 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:58,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:24:58,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918821734] [2024-11-28 04:24:58,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918821734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:58,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:58,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:24:58,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493931030] [2024-11-28 04:24:58,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:58,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:24:58,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:24:58,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:24:58,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:24:58,273 INFO L87 Difference]: Start difference. First operand 1804 states and 2397 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:58,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:58,920 INFO L93 Difference]: Finished difference Result 2561 states and 2999 transitions. [2024-11-28 04:24:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:24:58,921 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-28 04:24:58,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:58,930 INFO L225 Difference]: With dead ends: 2561 [2024-11-28 04:24:58,930 INFO L226 Difference]: Without dead ends: 2561 [2024-11-28 04:24:58,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:24:58,931 INFO L435 NwaCegarLoop]: 1427 mSDtfsCounter, 1127 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 4050 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:58,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 4050 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:24:58,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2024-11-28 04:24:58,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1484. [2024-11-28 04:24:58,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 925 states have (on average 1.8994594594594594) internal successors, (1757), 1461 states have internal predecessors, (1757), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:24:58,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1797 transitions. [2024-11-28 04:24:58,960 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1797 transitions. Word has length 16 [2024-11-28 04:24:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:58,960 INFO L471 AbstractCegarLoop]: Abstraction has 1484 states and 1797 transitions. [2024-11-28 04:24:58,960 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:58,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1797 transitions. [2024-11-28 04:24:58,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 04:24:58,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:58,961 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:58,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:24:59,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:59,162 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:24:59,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:59,165 INFO L85 PathProgramCache]: Analyzing trace with hash 418110181, now seen corresponding path program 1 times [2024-11-28 04:24:59,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:24:59,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548779191] [2024-11-28 04:24:59,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:59,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:59,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:59,170 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:59,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:24:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:59,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:24:59,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:59,442 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:59,442 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:24:59,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548779191] [2024-11-28 04:24:59,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548779191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:59,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:59,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:59,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498716151] [2024-11-28 04:24:59,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:59,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:24:59,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:24:59,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:24:59,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:24:59,444 INFO L87 Difference]: Start difference. First operand 1484 states and 1797 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) 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) [2024-11-28 04:25:02,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:25:02,483 INFO L93 Difference]: Finished difference Result 1910 states and 2326 transitions. [2024-11-28 04:25:02,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:25:02,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) 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 [2024-11-28 04:25:02,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:25:02,487 INFO L225 Difference]: With dead ends: 1910 [2024-11-28 04:25:02,487 INFO L226 Difference]: Without dead ends: 1910 [2024-11-28 04:25:02,487 INFO L434 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 [2024-11-28 04:25:02,488 INFO L435 NwaCegarLoop]: 792 mSDtfsCounter, 948 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:25:02,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1775 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 04:25:02,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2024-11-28 04:25:02,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 1461. [2024-11-28 04:25:02,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 925 states have (on average 1.8497297297297297) internal successors, (1711), 1438 states have internal predecessors, (1711), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:25:02,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1751 transitions. [2024-11-28 04:25:02,509 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1751 transitions. Word has length 20 [2024-11-28 04:25:02,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:25:02,509 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 1751 transitions. [2024-11-28 04:25:02,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) 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) [2024-11-28 04:25:02,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1751 transitions. [2024-11-28 04:25:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 04:25:02,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:25:02,510 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:25:02,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:25:02,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:02,711 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:25:02,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:25:02,711 INFO L85 PathProgramCache]: Analyzing trace with hash 418110182, now seen corresponding path program 1 times [2024-11-28 04:25:02,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:25:02,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649237758] [2024-11-28 04:25:02,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:25:02,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:02,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:25:02,713 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:25:02,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:25:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:25:02,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:25:02,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:25:02,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:25:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:25:03,118 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:25:03,118 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:25:03,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649237758] [2024-11-28 04:25:03,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649237758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:25:03,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:25:03,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:25:03,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188620978] [2024-11-28 04:25:03,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:25:03,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:25:03,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:25:03,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:25:03,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:25:03,119 INFO L87 Difference]: Start difference. First operand 1461 states and 1751 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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) [2024-11-28 04:25:09,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:25:09,451 INFO L93 Difference]: Finished difference Result 2180 states and 2628 transitions. [2024-11-28 04:25:09,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:25:09,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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 [2024-11-28 04:25:09,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:25:09,457 INFO L225 Difference]: With dead ends: 2180 [2024-11-28 04:25:09,457 INFO L226 Difference]: Without dead ends: 2180 [2024-11-28 04:25:09,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:25:09,458 INFO L435 NwaCegarLoop]: 1423 mSDtfsCounter, 803 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 2567 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:25:09,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 3744 Invalid, 2590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2567 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-28 04:25:09,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-28 04:25:09,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 1577. [2024-11-28 04:25:09,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1041 states have (on average 1.7780979827089338) internal successors, (1851), 1554 states have internal predecessors, (1851), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:25:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 1891 transitions. [2024-11-28 04:25:09,480 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 1891 transitions. Word has length 20 [2024-11-28 04:25:09,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:25:09,480 INFO L471 AbstractCegarLoop]: Abstraction has 1577 states and 1891 transitions. [2024-11-28 04:25:09,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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) [2024-11-28 04:25:09,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 1891 transitions. [2024-11-28 04:25:09,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 04:25:09,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:25:09,481 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:25:09,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:25:09,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:09,682 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:25:09,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:25:09,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2062687914, now seen corresponding path program 1 times [2024-11-28 04:25:09,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:25:09,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905430176] [2024-11-28 04:25:09,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:25:09,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:09,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:25:09,684 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:25:09,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:25:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:25:09,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:25:09,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:25:09,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:25:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:25:10,250 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:25:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:25:10,911 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:25:10,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905430176] [2024-11-28 04:25:10,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905430176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:25:10,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:25:10,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 04:25:10,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649701011] [2024-11-28 04:25:10,912 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:25:10,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:25:10,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:25:10,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:25:10,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:25:10,913 INFO L87 Difference]: Start difference. First operand 1577 states and 1891 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:25:33,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:25:33,037 INFO L93 Difference]: Finished difference Result 2542 states and 3124 transitions. [2024-11-28 04:25:33,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:25:33,039 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 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 39 [2024-11-28 04:25:33,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:25:33,048 INFO L225 Difference]: With dead ends: 2542 [2024-11-28 04:25:33,048 INFO L226 Difference]: Without dead ends: 2542 [2024-11-28 04:25:33,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:25:33,049 INFO L435 NwaCegarLoop]: 1478 mSDtfsCounter, 2266 mSDsluCounter, 6014 mSDsCounter, 0 mSdLazyCounter, 6035 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 7492 SdHoareTripleChecker+Invalid, 6065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:25:33,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 7492 Invalid, 6065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 6035 Invalid, 0 Unknown, 0 Unchecked, 21.7s Time] [2024-11-28 04:25:33,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-11-28 04:25:33,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 1743. [2024-11-28 04:25:33,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1207 states have (on average 1.7274233637116818) internal successors, (2085), 1720 states have internal predecessors, (2085), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:25:33,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2125 transitions. [2024-11-28 04:25:33,081 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2125 transitions. Word has length 39 [2024-11-28 04:25:33,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:25:33,081 INFO L471 AbstractCegarLoop]: Abstraction has 1743 states and 2125 transitions. [2024-11-28 04:25:33,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:25:33,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2125 transitions. [2024-11-28 04:25:33,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:25:33,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:25:33,083 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:25:33,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 04:25:33,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:33,284 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:25:33,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:25:33,285 INFO L85 PathProgramCache]: Analyzing trace with hash -705386174, now seen corresponding path program 1 times [2024-11-28 04:25:33,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:25:33,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911208332] [2024-11-28 04:25:33,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:25:33,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:33,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:25:33,287 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:25:33,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:25:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:25:33,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:25:33,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:25:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:25:33,691 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:25:33,691 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:25:33,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911208332] [2024-11-28 04:25:33,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911208332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:25:33,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:25:33,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:25:33,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103912608] [2024-11-28 04:25:33,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:25:33,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:25:33,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:25:33,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:25:33,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:25:33,693 INFO L87 Difference]: Start difference. First operand 1743 states and 2125 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:25:33,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:25:33,837 INFO L93 Difference]: Finished difference Result 1428 states and 1685 transitions. [2024-11-28 04:25:33,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:25:33,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-28 04:25:33,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:25:33,843 INFO L225 Difference]: With dead ends: 1428 [2024-11-28 04:25:33,843 INFO L226 Difference]: Without dead ends: 1428 [2024-11-28 04:25:33,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:25:33,844 INFO L435 NwaCegarLoop]: 1176 mSDtfsCounter, 56 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3455 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:25:33,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3455 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:25:33,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-11-28 04:25:33,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1426. [2024-11-28 04:25:33,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 913 states have (on average 1.7995618838992333) internal successors, (1643), 1403 states have internal predecessors, (1643), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:25:33,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1683 transitions. [2024-11-28 04:25:33,868 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1683 transitions. Word has length 56 [2024-11-28 04:25:33,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:25:33,868 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 1683 transitions. [2024-11-28 04:25:33,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:25:33,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1683 transitions. [2024-11-28 04:25:33,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 04:25:33,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:25:33,870 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:25:33,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:25:34,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:34,071 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:25:34,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:25:34,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1129375374, now seen corresponding path program 1 times [2024-11-28 04:25:34,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:25:34,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535924091] [2024-11-28 04:25:34,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:25:34,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:34,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:25:34,079 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:25:34,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:25:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:25:34,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:25:34,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:25:34,562 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 04:25:34,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 04:25:34,630 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2024-11-28 04:25:34,631 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 16 treesize of output 17 [2024-11-28 04:25:35,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:25:35,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:25:35,180 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:25:35,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535924091] [2024-11-28 04:25:35,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535924091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:25:35,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:25:35,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:25:35,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65465042] [2024-11-28 04:25:35,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:25:35,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:25:35,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:25:35,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:25:35,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:25:35,182 INFO L87 Difference]: Start difference. First operand 1426 states and 1683 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:25:39,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:25:39,945 INFO L93 Difference]: Finished difference Result 2581 states and 3042 transitions. [2024-11-28 04:25:39,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:25:39,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-28 04:25:39,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:25:39,955 INFO L225 Difference]: With dead ends: 2581 [2024-11-28 04:25:39,955 INFO L226 Difference]: Without dead ends: 2581 [2024-11-28 04:25:39,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:25:39,956 INFO L435 NwaCegarLoop]: 927 mSDtfsCounter, 2021 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:25:39,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2021 Valid, 2228 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 04:25:39,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2024-11-28 04:25:39,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 1920. [2024-11-28 04:25:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1391 states have (on average 1.7850467289719627) internal successors, (2483), 1884 states have internal predecessors, (2483), 35 states have call successors, (35), 9 states have call predecessors, (35), 7 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 04:25:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2549 transitions. [2024-11-28 04:25:39,991 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2549 transitions. Word has length 64 [2024-11-28 04:25:39,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:25:39,991 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2549 transitions. [2024-11-28 04:25:39,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:25:39,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2549 transitions. [2024-11-28 04:25:39,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 04:25:39,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:25:39,992 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:25:40,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:25:40,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:40,193 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:25:40,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:25:40,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1129375375, now seen corresponding path program 1 times [2024-11-28 04:25:40,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:25:40,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311327697] [2024-11-28 04:25:40,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:25:40,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:40,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:25:40,196 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:25:40,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:25:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:25:40,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:25:40,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:25:40,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:25:40,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 04:25:40,884 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-28 04:25:40,885 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 14 [2024-11-28 04:25:41,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:25:41,936 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:25:41,936 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:25:41,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311327697] [2024-11-28 04:25:41,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311327697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:25:41,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:25:41,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:25:41,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725513547] [2024-11-28 04:25:41,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:25:41,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:25:41,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:25:41,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:25:41,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:25:41,938 INFO L87 Difference]: Start difference. First operand 1920 states and 2549 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:25:47,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:25:47,589 INFO L93 Difference]: Finished difference Result 1925 states and 2555 transitions. [2024-11-28 04:25:47,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:25:47,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-28 04:25:47,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:25:47,597 INFO L225 Difference]: With dead ends: 1925 [2024-11-28 04:25:47,597 INFO L226 Difference]: Without dead ends: 1925 [2024-11-28 04:25:47,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:25:47,598 INFO L435 NwaCegarLoop]: 1164 mSDtfsCounter, 101 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:25:47,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 3011 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-28 04:25:47,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2024-11-28 04:25:47,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1925. [2024-11-28 04:25:47,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1395 states have (on average 1.782795698924731) internal successors, (2487), 1888 states have internal predecessors, (2487), 36 states have call successors, (36), 10 states have call predecessors, (36), 7 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 04:25:47,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2555 transitions. [2024-11-28 04:25:47,632 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2555 transitions. Word has length 64 [2024-11-28 04:25:47,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:25:47,633 INFO L471 AbstractCegarLoop]: Abstraction has 1925 states and 2555 transitions. [2024-11-28 04:25:47,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:25:47,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2555 transitions. [2024-11-28 04:25:47,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 04:25:47,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:25:47,635 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:25:47,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:25:47,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:47,836 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:25:47,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:25:47,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1348447532, now seen corresponding path program 1 times [2024-11-28 04:25:47,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:25:47,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023920077] [2024-11-28 04:25:47,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:25:47,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:47,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:25:47,840 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:25:47,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:25:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:25:48,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:25:48,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:25:48,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:25:48,511 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:25:48,511 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:25:48,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023920077] [2024-11-28 04:25:48,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023920077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:25:48,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:25:48,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:25:48,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737118881] [2024-11-28 04:25:48,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:25:48,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:25:48,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:25:48,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:25:48,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:25:48,513 INFO L87 Difference]: Start difference. First operand 1925 states and 2555 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:25:48,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:25:48,678 INFO L93 Difference]: Finished difference Result 1933 states and 2563 transitions. [2024-11-28 04:25:48,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:25:48,679 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-28 04:25:48,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:25:48,683 INFO L225 Difference]: With dead ends: 1933 [2024-11-28 04:25:48,683 INFO L226 Difference]: Without dead ends: 1933 [2024-11-28 04:25:48,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:25:48,684 INFO L435 NwaCegarLoop]: 1185 mSDtfsCounter, 25 mSDsluCounter, 5908 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 7093 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:25:48,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 7093 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:25:48,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2024-11-28 04:25:48,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1932. [2024-11-28 04:25:48,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1400 states have (on average 1.78) internal successors, (2492), 1894 states have internal predecessors, (2492), 37 states have call successors, (37), 11 states have call predecessors, (37), 8 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:25:48,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 2562 transitions. [2024-11-28 04:25:48,733 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 2562 transitions. Word has length 72 [2024-11-28 04:25:48,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:25:48,734 INFO L471 AbstractCegarLoop]: Abstraction has 1932 states and 2562 transitions. [2024-11-28 04:25:48,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:25:48,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 2562 transitions. [2024-11-28 04:25:48,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 04:25:48,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:25:48,735 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:25:48,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:25:48,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:48,936 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:25:48,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:25:48,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1644066953, now seen corresponding path program 1 times [2024-11-28 04:25:48,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:25:48,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086083369] [2024-11-28 04:25:48,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:25:48,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:25:48,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:25:48,939 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:25:48,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:25:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:25:49,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:25:49,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:25:49,591 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 04:25:49,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 04:25:49,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:25:49,600 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:25:49,600 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:25:49,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086083369] [2024-11-28 04:25:49,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086083369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:25:49,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:25:49,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:25:49,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551523727] [2024-11-28 04:25:49,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:25:49,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:25:49,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:25:49,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:25:49,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:25:49,605 INFO L87 Difference]: Start difference. First operand 1932 states and 2562 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:25:54,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:25:58,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:26:03,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:26:03,002 INFO L93 Difference]: Finished difference Result 2370 states and 3123 transitions. [2024-11-28 04:26:03,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:26:03,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 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 75 [2024-11-28 04:26:03,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:26:03,008 INFO L225 Difference]: With dead ends: 2370 [2024-11-28 04:26:03,008 INFO L226 Difference]: Without dead ends: 2370 [2024-11-28 04:26:03,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:26:03,009 INFO L435 NwaCegarLoop]: 741 mSDtfsCounter, 820 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 29 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:26:03,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 2297 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1951 Invalid, 6 Unknown, 0 Unchecked, 13.3s Time] [2024-11-28 04:26:03,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2024-11-28 04:26:03,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1929. [2024-11-28 04:26:03,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1400 states have (on average 1.7757142857142858) internal successors, (2486), 1891 states have internal predecessors, (2486), 37 states have call successors, (37), 11 states have call predecessors, (37), 8 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:26:03,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2556 transitions. [2024-11-28 04:26:03,054 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2556 transitions. Word has length 75 [2024-11-28 04:26:03,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:26:03,056 INFO L471 AbstractCegarLoop]: Abstraction has 1929 states and 2556 transitions. [2024-11-28 04:26:03,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:26:03,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2556 transitions. [2024-11-28 04:26:03,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 04:26:03,059 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:26:03,059 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:26:03,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:26:03,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:03,260 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:26:03,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:26:03,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1644066952, now seen corresponding path program 1 times [2024-11-28 04:26:03,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:26:03,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1959568091] [2024-11-28 04:26:03,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:26:03,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:03,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:26:03,262 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:26:03,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:26:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:26:03,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:26:03,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:26:03,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:26:04,314 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |alt_malloc_#res.base| (select |c_#length| |alt_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |alt_malloc_#res.base|)))) is different from true [2024-11-28 04:26:04,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:26:04,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 04:26:04,349 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:26:04,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:26:04,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:26:04,355 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:26:04,355 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:26:04,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959568091] [2024-11-28 04:26:04,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959568091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:26:04,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:26:04,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:26:04,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474636339] [2024-11-28 04:26:04,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:26:04,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:26:04,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:26:04,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:26:04,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2024-11-28 04:26:04,356 INFO L87 Difference]: Start difference. First operand 1929 states and 2556 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:26:14,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:26:14,777 INFO L93 Difference]: Finished difference Result 3103 states and 4094 transitions. [2024-11-28 04:26:14,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:26:14,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 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 75 [2024-11-28 04:26:14,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:26:14,785 INFO L225 Difference]: With dead ends: 3103 [2024-11-28 04:26:14,786 INFO L226 Difference]: Without dead ends: 3103 [2024-11-28 04:26:14,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2024-11-28 04:26:14,787 INFO L435 NwaCegarLoop]: 1247 mSDtfsCounter, 1007 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 4049 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 6177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 4049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2102 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:26:14,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 3430 Invalid, 6177 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 4049 Invalid, 0 Unknown, 2102 Unchecked, 10.3s Time] [2024-11-28 04:26:14,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2024-11-28 04:26:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 1921. [2024-11-28 04:26:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1400 states have (on average 1.7642857142857142) internal successors, (2470), 1883 states have internal predecessors, (2470), 37 states have call successors, (37), 11 states have call predecessors, (37), 8 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:26:14,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2540 transitions. [2024-11-28 04:26:14,835 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2540 transitions. Word has length 75 [2024-11-28 04:26:14,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:26:14,836 INFO L471 AbstractCegarLoop]: Abstraction has 1921 states and 2540 transitions. [2024-11-28 04:26:14,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:26:14,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2540 transitions. [2024-11-28 04:26:14,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 04:26:14,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:26:14,838 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:26:14,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:26:15,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:15,038 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:26:15,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:26:15,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1406752319, now seen corresponding path program 1 times [2024-11-28 04:26:15,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:26:15,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437710775] [2024-11-28 04:26:15,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:26:15,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:15,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:26:15,042 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:26:15,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:26:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:26:15,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:26:15,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:26:15,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:26:15,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:26:15,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:26:15,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:26:15,615 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:26:15,615 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:26:15,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437710775] [2024-11-28 04:26:15,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437710775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:26:15,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:26:15,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:26:15,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562631982] [2024-11-28 04:26:15,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:26:15,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:26:15,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:26:15,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:26:15,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:26:15,617 INFO L87 Difference]: Start difference. First operand 1921 states and 2540 transitions. Second operand has 8 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:26:22,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:26:22,331 INFO L93 Difference]: Finished difference Result 1936 states and 2556 transitions. [2024-11-28 04:26:22,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:26:22,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2024-11-28 04:26:22,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:26:22,335 INFO L225 Difference]: With dead ends: 1936 [2024-11-28 04:26:22,336 INFO L226 Difference]: Without dead ends: 1936 [2024-11-28 04:26:22,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:26:22,336 INFO L435 NwaCegarLoop]: 1171 mSDtfsCounter, 16 mSDsluCounter, 3930 mSDsCounter, 0 mSdLazyCounter, 3151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 5101 SdHoareTripleChecker+Invalid, 3153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:26:22,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 5101 Invalid, 3153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3151 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-28 04:26:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2024-11-28 04:26:22,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1935. [2024-11-28 04:26:22,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1412 states have (on average 1.7606232294617563) internal successors, (2486), 1895 states have internal predecessors, (2486), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:26:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2556 transitions. [2024-11-28 04:26:22,364 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2556 transitions. Word has length 82 [2024-11-28 04:26:22,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:26:22,365 INFO L471 AbstractCegarLoop]: Abstraction has 1935 states and 2556 transitions. [2024-11-28 04:26:22,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:26:22,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2556 transitions. [2024-11-28 04:26:22,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 04:26:22,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:26:22,366 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:26:22,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 04:26:22,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:22,567 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:26:22,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:26:22,567 INFO L85 PathProgramCache]: Analyzing trace with hash -659648853, now seen corresponding path program 1 times [2024-11-28 04:26:22,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:26:22,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608389428] [2024-11-28 04:26:22,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:26:22,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:22,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:26:22,573 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:26:22,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:26:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:26:22,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:26:22,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:26:22,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:26:23,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:26:23,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:26:23,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 04:26:23,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:26:23,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:26:23,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:26:23,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608389428] [2024-11-28 04:26:23,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608389428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:26:23,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:26:23,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:26:23,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004193640] [2024-11-28 04:26:23,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:26:23,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:26:23,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:26:23,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:26:23,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:26:23,251 INFO L87 Difference]: Start difference. First operand 1935 states and 2556 transitions. Second operand has 9 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:26:32,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:26:32,538 INFO L93 Difference]: Finished difference Result 1935 states and 2554 transitions. [2024-11-28 04:26:32,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:26:32,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2024-11-28 04:26:32,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:26:32,544 INFO L225 Difference]: With dead ends: 1935 [2024-11-28 04:26:32,544 INFO L226 Difference]: Without dead ends: 1935 [2024-11-28 04:26:32,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:26:32,546 INFO L435 NwaCegarLoop]: 1167 mSDtfsCounter, 13 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 3462 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5967 SdHoareTripleChecker+Invalid, 3463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:26:32,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5967 Invalid, 3463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3462 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-11-28 04:26:32,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2024-11-28 04:26:32,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1935. [2024-11-28 04:26:32,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1412 states have (on average 1.7592067988668556) internal successors, (2484), 1895 states have internal predecessors, (2484), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:26:32,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2554 transitions. [2024-11-28 04:26:32,584 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2554 transitions. Word has length 83 [2024-11-28 04:26:32,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:26:32,584 INFO L471 AbstractCegarLoop]: Abstraction has 1935 states and 2554 transitions. [2024-11-28 04:26:32,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:26:32,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2554 transitions. [2024-11-28 04:26:32,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:26:32,585 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:26:32,586 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:26:32,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:26:32,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:32,786 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:26:32,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:26:32,787 INFO L85 PathProgramCache]: Analyzing trace with hash 2069234694, now seen corresponding path program 1 times [2024-11-28 04:26:32,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:26:32,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608912674] [2024-11-28 04:26:32,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:26:32,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:32,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:26:32,790 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:26:32,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:26:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:26:33,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:26:33,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:26:33,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:26:33,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:26:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:26:33,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:26:33,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:26:33,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608912674] [2024-11-28 04:26:33,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608912674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:26:33,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:26:33,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:26:33,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752283201] [2024-11-28 04:26:33,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:26:33,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:26:33,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:26:33,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:26:33,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:26:33,334 INFO L87 Difference]: Start difference. First operand 1935 states and 2554 transitions. Second operand has 8 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:26:37,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:26:37,945 INFO L93 Difference]: Finished difference Result 1966 states and 2594 transitions. [2024-11-28 04:26:37,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:26:37,946 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 90 [2024-11-28 04:26:37,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:26:37,951 INFO L225 Difference]: With dead ends: 1966 [2024-11-28 04:26:37,951 INFO L226 Difference]: Without dead ends: 1966 [2024-11-28 04:26:37,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:26:37,953 INFO L435 NwaCegarLoop]: 1133 mSDtfsCounter, 44 mSDsluCounter, 3012 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 4145 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:26:37,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 4145 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 04:26:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2024-11-28 04:26:37,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1949. [2024-11-28 04:26:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1424 states have (on average 1.7556179775280898) internal successors, (2500), 1907 states have internal predecessors, (2500), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (35), 30 states have call predecessors, (35), 33 states have call successors, (35) [2024-11-28 04:26:37,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2572 transitions. [2024-11-28 04:26:37,984 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2572 transitions. Word has length 90 [2024-11-28 04:26:37,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:26:37,984 INFO L471 AbstractCegarLoop]: Abstraction has 1949 states and 2572 transitions. [2024-11-28 04:26:37,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:26:37,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2572 transitions. [2024-11-28 04:26:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:26:37,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:26:37,986 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:26:38,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:26:38,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:38,187 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:26:38,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:26:38,187 INFO L85 PathProgramCache]: Analyzing trace with hash 2069234695, now seen corresponding path program 1 times [2024-11-28 04:26:38,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:26:38,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1729873582] [2024-11-28 04:26:38,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:26:38,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:38,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:26:38,189 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:26:38,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:26:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:26:38,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:26:38,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:26:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:26:38,640 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:26:38,640 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:26:38,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729873582] [2024-11-28 04:26:38,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729873582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:26:38,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:26:38,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:26:38,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908559360] [2024-11-28 04:26:38,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:26:38,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:26:38,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:26:38,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:26:38,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:26:38,641 INFO L87 Difference]: Start difference. First operand 1949 states and 2572 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:26:38,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:26:38,730 INFO L93 Difference]: Finished difference Result 1951 states and 2572 transitions. [2024-11-28 04:26:38,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:26:38,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 90 [2024-11-28 04:26:38,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:26:38,740 INFO L225 Difference]: With dead ends: 1951 [2024-11-28 04:26:38,742 INFO L226 Difference]: Without dead ends: 1945 [2024-11-28 04:26:38,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:26:38,744 INFO L435 NwaCegarLoop]: 1176 mSDtfsCounter, 3 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:26:38,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3519 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:26:38,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2024-11-28 04:26:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1945. [2024-11-28 04:26:38,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1945 states, 1420 states have (on average 1.7563380281690142) internal successors, (2494), 1905 states have internal predecessors, (2494), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (35), 28 states have call predecessors, (35), 33 states have call successors, (35) [2024-11-28 04:26:38,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2566 transitions. [2024-11-28 04:26:38,773 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2566 transitions. Word has length 90 [2024-11-28 04:26:38,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:26:38,774 INFO L471 AbstractCegarLoop]: Abstraction has 1945 states and 2566 transitions. [2024-11-28 04:26:38,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:26:38,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2566 transitions. [2024-11-28 04:26:38,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:26:38,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:26:38,775 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:26:38,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:26:38,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:38,975 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:26:38,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:26:38,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1238110828, now seen corresponding path program 1 times [2024-11-28 04:26:38,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:26:38,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207134087] [2024-11-28 04:26:38,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:26:38,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:38,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:26:38,982 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:26:38,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:26:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:26:39,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:26:39,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:26:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:26:39,440 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:26:39,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:26:39,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:26:39,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207134087] [2024-11-28 04:26:39,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207134087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:26:39,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:26:39,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 04:26:39,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454923787] [2024-11-28 04:26:39,614 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:26:39,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:26:39,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:26:39,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:26:39,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:26:39,616 INFO L87 Difference]: Start difference. First operand 1945 states and 2566 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:26:39,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:26:39,943 INFO L93 Difference]: Finished difference Result 1971 states and 2596 transitions. [2024-11-28 04:26:39,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:26:39,944 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 91 [2024-11-28 04:26:39,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:26:39,949 INFO L225 Difference]: With dead ends: 1971 [2024-11-28 04:26:39,949 INFO L226 Difference]: Without dead ends: 1959 [2024-11-28 04:26:39,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:26:39,950 INFO L435 NwaCegarLoop]: 1176 mSDtfsCounter, 16 mSDsluCounter, 5850 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 7026 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:26:39,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 7026 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:26:39,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2024-11-28 04:26:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1953. [2024-11-28 04:26:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1953 states, 1428 states have (on average 1.753501400560224) internal successors, (2504), 1913 states have internal predecessors, (2504), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (35), 28 states have call predecessors, (35), 33 states have call successors, (35) [2024-11-28 04:26:39,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 2576 transitions. [2024-11-28 04:26:39,979 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 2576 transitions. Word has length 91 [2024-11-28 04:26:39,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:26:39,980 INFO L471 AbstractCegarLoop]: Abstraction has 1953 states and 2576 transitions. [2024-11-28 04:26:39,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:26:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 2576 transitions. [2024-11-28 04:26:39,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 04:26:39,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:26:39,981 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:26:39,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:26:40,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:40,182 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:26:40,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:26:40,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1872326022, now seen corresponding path program 2 times [2024-11-28 04:26:40,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:26:40,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1243352109] [2024-11-28 04:26:40,183 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:26:40,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:26:40,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:26:40,186 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:26:40,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:28:09,044 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:28:09,044 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:28:09,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:28:09,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:09,258 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:09,672 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:09,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:09,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243352109] [2024-11-28 04:28:09,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243352109] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:28:09,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:28:09,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-28 04:28:09,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207238201] [2024-11-28 04:28:09,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:09,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:28:09,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:09,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:28:09,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:28:09,675 INFO L87 Difference]: Start difference. First operand 1953 states and 2576 transitions. Second operand has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:28:10,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:10,639 INFO L93 Difference]: Finished difference Result 1989 states and 2624 transitions. [2024-11-28 04:28:10,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:28:10,641 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 94 [2024-11-28 04:28:10,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:10,646 INFO L225 Difference]: With dead ends: 1989 [2024-11-28 04:28:10,646 INFO L226 Difference]: Without dead ends: 1971 [2024-11-28 04:28:10,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=248, Invalid=454, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:28:10,648 INFO L435 NwaCegarLoop]: 1176 mSDtfsCounter, 26 mSDsluCounter, 8201 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 9377 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:10,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 9377 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:28:10,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2024-11-28 04:28:10,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1971. [2024-11-28 04:28:10,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1446 states have (on average 1.7468879668049793) internal successors, (2526), 1931 states have internal predecessors, (2526), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (35), 28 states have call predecessors, (35), 33 states have call successors, (35) [2024-11-28 04:28:10,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 2598 transitions. [2024-11-28 04:28:10,682 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 2598 transitions. Word has length 94 [2024-11-28 04:28:10,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:10,683 INFO L471 AbstractCegarLoop]: Abstraction has 1971 states and 2598 transitions. [2024-11-28 04:28:10,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:28:10,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 2598 transitions. [2024-11-28 04:28:10,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 04:28:10,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:10,684 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:10,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 04:28:10,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:10,885 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-28 04:28:10,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:10,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1835719738, now seen corresponding path program 3 times [2024-11-28 04:28:10,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:10,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094683214] [2024-11-28 04:28:10,887 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:28:10,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:10,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:10,889 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:10,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efa542a-95e8-49f3-82a2-f84a0d83b1f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process