./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/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_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:20,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:20,927 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 02:07:20,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:20,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:20,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:20,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:20,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:20,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:20,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:20,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:20,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:20,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:20,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:20,978 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:20,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:20,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:20,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:20,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:20,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:20,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:20,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:20,979 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:07:20,980 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:07:20,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:20,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:20,980 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:07:20,980 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:07:20,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:20,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:20,980 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:20,981 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:20,981 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:20,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:20,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:20,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:20,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:20,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:20,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:20,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:20,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:20,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:20,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:20,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:20,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:20,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:20,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:20,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:20,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:20,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:20,982 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_b95859a7-b940-4507-8276-ef4e20551aa5/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-memcleanup) ) 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-28 02:07:21,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:21,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:21,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:21,320 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:21,321 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:21,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i [2024-11-28 02:07:24,283 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/data/e0b2598c8/a10a592537054b7d8032243e0a3c1ec4/FLAG558299535 [2024-11-28 02:07:24,757 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:24,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i [2024-11-28 02:07:24,785 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/data/e0b2598c8/a10a592537054b7d8032243e0a3c1ec4/FLAG558299535 [2024-11-28 02:07:24,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/data/e0b2598c8/a10a592537054b7d8032243e0a3c1ec4 [2024-11-28 02:07:24,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:24,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:24,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:24,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:24,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:24,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:24" (1/1) ... [2024-11-28 02:07:24,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565531c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:24, skipping insertion in model container [2024-11-28 02:07:24,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:24" (1/1) ... [2024-11-28 02:07:24,884 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:25,295 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 02:07:25,348 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 02:07:25,354 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 02:07:25,358 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 02:07:25,373 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 02:07:25,410 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 02:07:25,411 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 02:07:25,414 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 02:07:25,414 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 02:07:25,418 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 02:07:25,419 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 02:07:25,421 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 02:07:25,422 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:07:25,427 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 02:07:25,429 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 02:07:25,432 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 02:07:25,433 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 02:07:25,435 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 02:07:25,436 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 02:07:25,443 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 02:07:25,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:25,462 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 02:07:25,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3f48f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:25, skipping insertion in model container [2024-11-28 02:07:25,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:25,463 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 02:07:25,465 INFO L158 Benchmark]: Toolchain (without parser) took 649.49ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 70.5MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:07:25,466 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:25,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 645.20ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 70.5MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:07:25,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 645.20ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 70.5MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: 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_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/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_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:28,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:28,215 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-28 02:07:28,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:28,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:28,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:28,267 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:28,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:28,268 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:28,269 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:28,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:28,270 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:28,271 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:28,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:28,271 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:28,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:28,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:07:28,272 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:07:28,273 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:07:28,273 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:28,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:28,273 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:28,274 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:28,274 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:28,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:28,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:28,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:28,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:28,275 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:28,275 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:28,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:28,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:28,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:28,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:28,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:28,276 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:07:28,276 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:07:28,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:28,276 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:28,276 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:28,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:28,276 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_b95859a7-b940-4507-8276-ef4e20551aa5/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-memcleanup) ) 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-28 02:07:28,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:28,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:28,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:28,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:28,638 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:28,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i [2024-11-28 02:07:31,651 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/data/dde2434ea/d5efe489cef447f790ba54ec3151f7fa/FLAGcfe383ddc [2024-11-28 02:07:32,121 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:32,124 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i [2024-11-28 02:07:32,150 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/data/dde2434ea/d5efe489cef447f790ba54ec3151f7fa/FLAGcfe383ddc [2024-11-28 02:07:32,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/data/dde2434ea/d5efe489cef447f790ba54ec3151f7fa [2024-11-28 02:07:32,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:32,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:32,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:32,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:32,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:32,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:32" (1/1) ... [2024-11-28 02:07:32,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478f8442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32, skipping insertion in model container [2024-11-28 02:07:32,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:32" (1/1) ... [2024-11-28 02:07:32,253 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:32,774 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 02:07:32,831 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 02:07:32,842 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 02:07:32,848 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 02:07:32,861 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 02:07:32,926 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 02:07:32,927 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 02:07:32,933 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 02:07:32,933 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 02:07:32,937 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 02:07:32,938 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 02:07:32,942 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 02:07:32,945 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 02:07:32,954 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:07:32,955 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 02:07:32,960 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 02:07:32,964 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 02:07:32,965 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 02:07:32,966 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 02:07:32,975 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 02:07:32,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:33,004 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 02:07:33,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:33,066 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 02:07:33,084 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 02:07:33,087 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 02:07:33,094 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 02:07:33,106 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 02:07:33,172 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 02:07:33,175 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 02:07:33,178 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 02:07:33,179 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:07:33,181 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 02:07:33,182 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:07:33,183 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 02:07:33,187 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 02:07:33,194 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 02:07:33,195 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 02:07:33,199 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 02:07:33,200 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 02:07:33,201 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 02:07:33,202 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 02:07:33,210 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:07:33,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:33,227 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:33,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:33,419 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:33,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33 WrapperNode [2024-11-28 02:07:33,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:33,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:33,421 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:33,421 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:33,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,558 INFO L138 Inliner]: procedures = 180, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1149 [2024-11-28 02:07:33,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:33,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:33,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:33,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:33,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,578 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,711 INFO L175 MemorySlicer]: Split 302 memory accesses to 3 slices as follows [2, 34, 266]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2024-11-28 02:07:33,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,784 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,813 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:33,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:33,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:33,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:33,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:33,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:33,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:33,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 02:07:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 02:07:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 02:07:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:07:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:07:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 02:07:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:07:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:07:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 02:07:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 02:07:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 02:07:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 02:07:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 02:07:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 02:07:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:07:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:07:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:07:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:07:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:07:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:07:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:07:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:07:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:07:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:07:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 02:07:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:07:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:07:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:07:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 02:07:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:33,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:34,183 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:34,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:43,153 INFO L? ?]: Removed 143 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:43,153 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:43,167 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:43,167 INFO L312 CfgBuilder]: Removed 41 assume(true) statements. [2024-11-28 02:07:43,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:43 BoogieIcfgContainer [2024-11-28 02:07:43,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:43,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:43,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:43,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:43,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:32" (1/3) ... [2024-11-28 02:07:43,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ec293c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:43, skipping insertion in model container [2024-11-28 02:07:43,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (2/3) ... [2024-11-28 02:07:43,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ec293c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:43, skipping insertion in model container [2024-11-28 02:07:43,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:43" (3/3) ... [2024-11-28 02:07:43,177 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test3-2.i [2024-11-28 02:07:43,192 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:43,193 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_nondet_test3-2.i that has 5 procedures, 246 locations, 1 initial locations, 43 loop locations, and 2 error locations. [2024-11-28 02:07:43,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:43,246 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;@68c588eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:43,246 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:07:43,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 228 states have (on average 1.644736842105263) internal successors, (375), 231 states have internal predecessors, (375), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:07:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 02:07:43,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:43,255 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 02:07:43,256 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:07:43,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:43,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1665367, now seen corresponding path program 1 times [2024-11-28 02:07:43,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:43,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721823087] [2024-11-28 02:07:43,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:43,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:43,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:43,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:43,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:43,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:07:43,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:43,633 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-28 02:07:43,640 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 02:07:43,641 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:43,644 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:43,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721823087] [2024-11-28 02:07:43,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721823087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:43,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:43,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:43,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827705425] [2024-11-28 02:07:43,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:43,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:43,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:43,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:43,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 02:07:43,690 INFO L87 Difference]: Start difference. First operand has 238 states, 228 states have (on average 1.644736842105263) internal successors, (375), 231 states have internal predecessors, (375), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 02:07:48,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:49,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:49,064 INFO L93 Difference]: Finished difference Result 364 states and 476 transitions. [2024-11-28 02:07:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:49,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2024-11-28 02:07:49,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:49,084 INFO L225 Difference]: With dead ends: 364 [2024-11-28 02:07:49,084 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 02:07:49,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 02:07:49,089 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 160 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 477 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:49,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 581 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 1 Unknown, 477 Unchecked, 5.3s Time] [2024-11-28 02:07:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 02:07:49,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 235. [2024-11-28 02:07:49,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 226 states have (on average 1.2964601769911503) internal successors, (293), 228 states have internal predecessors, (293), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:07:49,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 303 transitions. [2024-11-28 02:07:49,164 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 303 transitions. Word has length 4 [2024-11-28 02:07:49,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:49,164 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 303 transitions. [2024-11-28 02:07:49,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 02:07:49,165 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 303 transitions. [2024-11-28 02:07:49,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 02:07:49,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:49,166 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:49,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:49,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:49,367 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:07:49,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:49,368 INFO L85 PathProgramCache]: Analyzing trace with hash -372073889, now seen corresponding path program 1 times [2024-11-28 02:07:49,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:49,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548695508] [2024-11-28 02:07:49,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:49,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:49,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:49,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:49,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:07:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:49,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:07:49,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:49,790 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 02:07:49,791 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:49,791 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:49,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548695508] [2024-11-28 02:07:49,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548695508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:49,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:49,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:49,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384263211] [2024-11-28 02:07:49,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:49,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:49,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:49,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:49,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:49,794 INFO L87 Difference]: Start difference. First operand 235 states and 303 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 02:07:54,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:58,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:58,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:58,804 INFO L93 Difference]: Finished difference Result 384 states and 497 transitions. [2024-11-28 02:07:58,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:58,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 16 [2024-11-28 02:07:58,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:58,808 INFO L225 Difference]: With dead ends: 384 [2024-11-28 02:07:58,808 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 02:07:58,808 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 02:07:58,809 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 184 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:58,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 792 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2024-11-28 02:07:58,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 02:07:58,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 353. [2024-11-28 02:07:58,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 343 states have (on average 1.2973760932944607) internal successors, (445), 346 states have internal predecessors, (445), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:07:58,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 457 transitions. [2024-11-28 02:07:58,829 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 457 transitions. Word has length 16 [2024-11-28 02:07:58,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:58,829 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 457 transitions. [2024-11-28 02:07:58,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 02:07:58,830 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 457 transitions. [2024-11-28 02:07:58,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 02:07:58,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:58,830 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:58,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:07:59,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:59,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:07:59,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:59,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1426676485, now seen corresponding path program 1 times [2024-11-28 02:07:59,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:59,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122793846] [2024-11-28 02:07:59,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:59,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:59,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:59,036 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:59,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:07:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:59,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:07:59,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:59,511 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-28 02:07:59,511 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 02:07:59,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:59,512 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:59,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122793846] [2024-11-28 02:07:59,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122793846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:59,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:59,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:59,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385427103] [2024-11-28 02:07:59,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:59,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:59,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:59,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:59,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 02:07:59,513 INFO L87 Difference]: Start difference. First operand 353 states and 457 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 02:08:03,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:04,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:04,204 INFO L93 Difference]: Finished difference Result 447 states and 577 transitions. [2024-11-28 02:08:04,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:04,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2024-11-28 02:08:04,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:04,210 INFO L225 Difference]: With dead ends: 447 [2024-11-28 02:08:04,210 INFO L226 Difference]: Without dead ends: 439 [2024-11-28 02:08:04,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 02:08:04,211 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 88 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 407 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:04,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 577 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 407 Unchecked, 4.7s Time] [2024-11-28 02:08:04,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-28 02:08:04,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 399. [2024-11-28 02:08:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 388 states have (on average 1.2963917525773196) internal successors, (503), 391 states have internal predecessors, (503), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:08:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 517 transitions. [2024-11-28 02:08:04,249 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 517 transitions. Word has length 16 [2024-11-28 02:08:04,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:04,249 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 517 transitions. [2024-11-28 02:08:04,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 02:08:04,249 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 517 transitions. [2024-11-28 02:08:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 02:08:04,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:04,251 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] [2024-11-28 02:08:04,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:08:04,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:04,452 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:04,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:04,452 INFO L85 PathProgramCache]: Analyzing trace with hash 700544482, now seen corresponding path program 1 times [2024-11-28 02:08:04,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:04,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93608570] [2024-11-28 02:08:04,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:04,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:04,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:04,457 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:04,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:08:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:04,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:08:04,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:04,847 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 02:08:04,848 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:04,848 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:04,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93608570] [2024-11-28 02:08:04,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93608570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:04,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:04,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:08:04,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497359929] [2024-11-28 02:08:04,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:04,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:08:04,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:04,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:08:04,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:04,850 INFO L87 Difference]: Start difference. First operand 399 states and 517 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:08:05,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:05,049 INFO L93 Difference]: Finished difference Result 426 states and 529 transitions. [2024-11-28 02:08:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:08:05,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 51 [2024-11-28 02:08:05,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:05,051 INFO L225 Difference]: With dead ends: 426 [2024-11-28 02:08:05,051 INFO L226 Difference]: Without dead ends: 426 [2024-11-28 02:08:05,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 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 02:08:05,052 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 23 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:05,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 795 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:08:05,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-28 02:08:05,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 423. [2024-11-28 02:08:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 412 states have (on average 1.2427184466019416) internal successors, (512), 415 states have internal predecessors, (512), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:08:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 526 transitions. [2024-11-28 02:08:05,068 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 526 transitions. Word has length 51 [2024-11-28 02:08:05,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:05,068 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 526 transitions. [2024-11-28 02:08:05,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:08:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 526 transitions. [2024-11-28 02:08:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 02:08:05,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:05,070 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] [2024-11-28 02:08:05,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:08:05,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:05,274 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:05,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:05,275 INFO L85 PathProgramCache]: Analyzing trace with hash 834557988, now seen corresponding path program 1 times [2024-11-28 02:08:05,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:05,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [6532670] [2024-11-28 02:08:05,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:05,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:05,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:05,277 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:05,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:08:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:05,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:08:05,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:05,574 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 02:08:05,574 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:05,574 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:05,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6532670] [2024-11-28 02:08:05,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6532670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:05,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:05,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:08:05,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891210222] [2024-11-28 02:08:05,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:05,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:08:05,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:05,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:08:05,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:05,576 INFO L87 Difference]: Start difference. First operand 423 states and 526 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:08:05,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:05,725 INFO L93 Difference]: Finished difference Result 387 states and 469 transitions. [2024-11-28 02:08:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:05,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 51 [2024-11-28 02:08:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:05,727 INFO L225 Difference]: With dead ends: 387 [2024-11-28 02:08:05,727 INFO L226 Difference]: Without dead ends: 387 [2024-11-28 02:08:05,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 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 02:08:05,729 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 27 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:05,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 792 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:08:05,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-28 02:08:05,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2024-11-28 02:08:05,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 376 states have (on average 1.2101063829787233) internal successors, (455), 379 states have internal predecessors, (455), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:08:05,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 469 transitions. [2024-11-28 02:08:05,740 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 469 transitions. Word has length 51 [2024-11-28 02:08:05,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:05,740 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 469 transitions. [2024-11-28 02:08:05,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:08:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 469 transitions. [2024-11-28 02:08:05,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 02:08:05,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:05,742 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] [2024-11-28 02:08:05,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:08:05,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:05,946 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:05,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:05,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1311774294, now seen corresponding path program 1 times [2024-11-28 02:08:05,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:05,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691246770] [2024-11-28 02:08:05,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:05,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:05,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:05,949 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:05,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:08:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:06,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:08:06,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:06,176 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:08:06,177 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:08:06,177 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:08:06,183 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 02:08:06,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:06,301 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 02:08:06,402 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 02:08:06,402 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:06,403 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:06,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691246770] [2024-11-28 02:08:06,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691246770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:06,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:06,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:08:06,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717696221] [2024-11-28 02:08:06,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:06,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:08:06,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:06,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:08:06,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:06,404 INFO L87 Difference]: Start difference. First operand 387 states and 469 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 02:08:07,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:07,176 INFO L93 Difference]: Finished difference Result 396 states and 488 transitions. [2024-11-28 02:08:07,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:08:07,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 51 [2024-11-28 02:08:07,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:07,179 INFO L225 Difference]: With dead ends: 396 [2024-11-28 02:08:07,179 INFO L226 Difference]: Without dead ends: 393 [2024-11-28 02:08:07,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:08:07,180 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 112 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:07,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1094 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:08:07,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-28 02:08:07,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 344. [2024-11-28 02:08:07,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 334 states have (on average 1.2305389221556886) internal successors, (411), 337 states have internal predecessors, (411), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:08:07,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 423 transitions. [2024-11-28 02:08:07,191 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 423 transitions. Word has length 51 [2024-11-28 02:08:07,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:07,191 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 423 transitions. [2024-11-28 02:08:07,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 02:08:07,192 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 423 transitions. [2024-11-28 02:08:07,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 02:08:07,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:07,194 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:07,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:08:07,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:07,398 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:07,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:07,399 INFO L85 PathProgramCache]: Analyzing trace with hash 840728322, now seen corresponding path program 1 times [2024-11-28 02:08:07,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:07,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059834959] [2024-11-28 02:08:07,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:07,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:07,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:07,404 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:07,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:08:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:07,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:08:07,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:08:07,934 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:07,934 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:07,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059834959] [2024-11-28 02:08:07,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059834959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:07,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:07,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:08:07,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102347596] [2024-11-28 02:08:07,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:07,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:07,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:07,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:07,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:07,937 INFO L87 Difference]: Start difference. First operand 344 states and 423 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:08:08,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:08,086 INFO L93 Difference]: Finished difference Result 384 states and 463 transitions. [2024-11-28 02:08:08,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:08:08,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2024-11-28 02:08:08,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:08,089 INFO L225 Difference]: With dead ends: 384 [2024-11-28 02:08:08,089 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 02:08:08,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 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 02:08:08,090 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 8 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:08,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 519 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:08:08,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 02:08:08,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-28 02:08:08,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 374 states have (on average 1.2058823529411764) internal successors, (451), 377 states have internal predecessors, (451), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:08:08,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 463 transitions. [2024-11-28 02:08:08,101 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 463 transitions. Word has length 88 [2024-11-28 02:08:08,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:08,101 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 463 transitions. [2024-11-28 02:08:08,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:08:08,101 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 463 transitions. [2024-11-28 02:08:08,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 02:08:08,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:08,104 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:08,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:08:08,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:08,305 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:08,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:08,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1768059136, now seen corresponding path program 1 times [2024-11-28 02:08:08,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:08,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298130091] [2024-11-28 02:08:08,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:08,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:08,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:08,310 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:08,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:08:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:08,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:08:08,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:08,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:08:08,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:08,874 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:08,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298130091] [2024-11-28 02:08:08,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298130091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:08,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:08,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:08:08,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509843377] [2024-11-28 02:08:08,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:08,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:08:08,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:08,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:08:08,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:08,876 INFO L87 Difference]: Start difference. First operand 384 states and 463 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:08:09,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:09,073 INFO L93 Difference]: Finished difference Result 348 states and 405 transitions. [2024-11-28 02:08:09,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:08:09,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2024-11-28 02:08:09,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:09,076 INFO L225 Difference]: With dead ends: 348 [2024-11-28 02:08:09,076 INFO L226 Difference]: Without dead ends: 348 [2024-11-28 02:08:09,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 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 02:08:09,078 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 32 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:09,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 745 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:08:09,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-28 02:08:09,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-11-28 02:08:09,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 338 states have (on average 1.1627218934911243) internal successors, (393), 341 states have internal predecessors, (393), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:08:09,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 405 transitions. [2024-11-28 02:08:09,091 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 405 transitions. Word has length 88 [2024-11-28 02:08:09,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:09,091 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 405 transitions. [2024-11-28 02:08:09,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:08:09,092 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 405 transitions. [2024-11-28 02:08:09,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 02:08:09,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:09,093 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:09,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:08:09,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:09,297 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:09,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:09,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1865230350, now seen corresponding path program 1 times [2024-11-28 02:08:09,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:09,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150181825] [2024-11-28 02:08:09,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:09,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:09,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:09,301 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:09,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:08:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:09,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:08:09,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:08:09,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:09,886 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:09,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150181825] [2024-11-28 02:08:09,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150181825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:09,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:09,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:08:09,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037927300] [2024-11-28 02:08:09,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:09,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:08:09,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:09,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:08:09,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:09,888 INFO L87 Difference]: Start difference. First operand 348 states and 405 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 02:08:09,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:09,953 INFO L93 Difference]: Finished difference Result 351 states and 409 transitions. [2024-11-28 02:08:09,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:09,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 88 [2024-11-28 02:08:09,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:09,957 INFO L225 Difference]: With dead ends: 351 [2024-11-28 02:08:09,957 INFO L226 Difference]: Without dead ends: 351 [2024-11-28 02:08:09,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:09,960 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:09,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 812 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:08:09,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-28 02:08:09,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-11-28 02:08:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 340 states have (on average 1.1647058823529413) internal successors, (396), 344 states have internal predecessors, (396), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 02:08:09,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 409 transitions. [2024-11-28 02:08:09,975 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 409 transitions. Word has length 88 [2024-11-28 02:08:09,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:09,977 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 409 transitions. [2024-11-28 02:08:09,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 02:08:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 409 transitions. [2024-11-28 02:08:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:08:09,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:09,979 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:09,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 02:08:10,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:10,180 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:10,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1283917396, now seen corresponding path program 1 times [2024-11-28 02:08:10,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:10,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [820207033] [2024-11-28 02:08:10,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:10,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:10,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:10,183 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:10,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:08:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:10,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:08:10,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:08:10,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:08:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:08:11,055 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:11,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820207033] [2024-11-28 02:08:11,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820207033] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:08:11,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:08:11,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 02:08:11,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787770745] [2024-11-28 02:08:11,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:08:11,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:08:11,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:11,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:08:11,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:08:11,060 INFO L87 Difference]: Start difference. First operand 351 states and 409 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:08:11,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:11,346 INFO L93 Difference]: Finished difference Result 362 states and 426 transitions. [2024-11-28 02:08:11,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:08:11,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 90 [2024-11-28 02:08:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:11,349 INFO L225 Difference]: With dead ends: 362 [2024-11-28 02:08:11,349 INFO L226 Difference]: Without dead ends: 362 [2024-11-28 02:08:11,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:08:11,351 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 4 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:11,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1345 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:08:11,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-28 02:08:11,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 360. [2024-11-28 02:08:11,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 348 states have (on average 1.1781609195402298) internal successors, (410), 352 states have internal predecessors, (410), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 02:08:11,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2024-11-28 02:08:11,366 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 90 [2024-11-28 02:08:11,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:11,367 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2024-11-28 02:08:11,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:08:11,367 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2024-11-28 02:08:11,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 02:08:11,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:11,369 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:11,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 02:08:11,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:11,573 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:11,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:11,574 INFO L85 PathProgramCache]: Analyzing trace with hash 43315534, now seen corresponding path program 2 times [2024-11-28 02:08:11,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:11,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [74484437] [2024-11-28 02:08:11,574 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:08:11,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:11,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:11,576 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:11,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:08:12,181 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:08:12,182 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:08:12,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:08:12,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 02:08:12,353 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:08:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 02:08:12,661 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:12,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74484437] [2024-11-28 02:08:12,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74484437] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:08:12,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:08:12,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 02:08:12,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251494648] [2024-11-28 02:08:12,662 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:08:12,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:08:12,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:12,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:08:12,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:08:12,663 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:08:13,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:13,227 INFO L93 Difference]: Finished difference Result 368 states and 434 transitions. [2024-11-28 02:08:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:08:13,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 94 [2024-11-28 02:08:13,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:13,230 INFO L225 Difference]: With dead ends: 368 [2024-11-28 02:08:13,230 INFO L226 Difference]: Without dead ends: 366 [2024-11-28 02:08:13,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:08:13,231 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 5 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:13,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1088 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:08:13,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-28 02:08:13,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 364. [2024-11-28 02:08:13,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 352 states have (on average 1.1818181818181819) internal successors, (416), 356 states have internal predecessors, (416), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 02:08:13,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 429 transitions. [2024-11-28 02:08:13,245 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 429 transitions. Word has length 94 [2024-11-28 02:08:13,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:13,246 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 429 transitions. [2024-11-28 02:08:13,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:08:13,246 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 429 transitions. [2024-11-28 02:08:13,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 02:08:13,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:13,247 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:13,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 02:08:13,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:13,451 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:13,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:13,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1674315826, now seen corresponding path program 3 times [2024-11-28 02:08:13,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:13,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925660651] [2024-11-28 02:08:13,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:08:13,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:13,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:13,454 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:13,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:08:13,985 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 02:08:13,985 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:08:13,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:08:13,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:14,741 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:08:14,741 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:08:14,742 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:08:14,744 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 02:08:14,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:14,865 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 02:08:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 02:08:14,911 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:14,911 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:14,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925660651] [2024-11-28 02:08:14,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925660651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:14,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:14,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:14,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50803610] [2024-11-28 02:08:14,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:14,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:14,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:14,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:14,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:14,914 INFO L87 Difference]: Start difference. First operand 364 states and 429 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:08:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:15,359 INFO L93 Difference]: Finished difference Result 476 states and 568 transitions. [2024-11-28 02:08:15,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:08:15,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2024-11-28 02:08:15,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:15,362 INFO L225 Difference]: With dead ends: 476 [2024-11-28 02:08:15,362 INFO L226 Difference]: Without dead ends: 476 [2024-11-28 02:08:15,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:08:15,363 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 335 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:15,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 778 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:08:15,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-28 02:08:15,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 366. [2024-11-28 02:08:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 354 states have (on average 1.1807909604519775) internal successors, (418), 358 states have internal predecessors, (418), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 02:08:15,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 431 transitions. [2024-11-28 02:08:15,374 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 431 transitions. Word has length 98 [2024-11-28 02:08:15,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:15,375 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 431 transitions. [2024-11-28 02:08:15,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:08:15,375 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 431 transitions. [2024-11-28 02:08:15,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:08:15,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:15,377 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:15,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:08:15,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:15,578 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:15,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:15,578 INFO L85 PathProgramCache]: Analyzing trace with hash 387123847, now seen corresponding path program 1 times [2024-11-28 02:08:15,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:15,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884017022] [2024-11-28 02:08:15,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:15,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:15,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:15,582 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:15,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:08:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:16,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:08:16,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:16,785 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 02:08:16,785 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:16,785 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:16,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884017022] [2024-11-28 02:08:16,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884017022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:16,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:16,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:08:16,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184478860] [2024-11-28 02:08:16,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:16,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:08:16,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:16,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:08:16,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:16,787 INFO L87 Difference]: Start difference. First operand 366 states and 431 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:08:21,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:25,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:27,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:28,554 INFO L93 Difference]: Finished difference Result 531 states and 636 transitions. [2024-11-28 02:08:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:08:28,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 133 [2024-11-28 02:08:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:28,557 INFO L225 Difference]: With dead ends: 531 [2024-11-28 02:08:28,557 INFO L226 Difference]: Without dead ends: 531 [2024-11-28 02:08:28,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 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 02:08:28,558 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 524 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:28,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 585 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 136 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2024-11-28 02:08:28,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-28 02:08:28,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 458. [2024-11-28 02:08:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 444 states have (on average 1.1801801801801801) internal successors, (524), 449 states have internal predecessors, (524), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 02:08:28,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 541 transitions. [2024-11-28 02:08:28,572 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 541 transitions. Word has length 133 [2024-11-28 02:08:28,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:28,572 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 541 transitions. [2024-11-28 02:08:28,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:08:28,572 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 541 transitions. [2024-11-28 02:08:28,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 02:08:28,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:28,574 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:28,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 02:08:28,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:28,775 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:28,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:28,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1513931723, now seen corresponding path program 1 times [2024-11-28 02:08:28,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:28,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610449475] [2024-11-28 02:08:28,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:28,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:28,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:28,778 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:28,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 02:08:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:29,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:08:29,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 02:08:29,764 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:08:30,404 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 02:08:30,404 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:30,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610449475] [2024-11-28 02:08:30,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610449475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:08:30,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:08:30,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-28 02:08:30,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665214717] [2024-11-28 02:08:30,405 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:08:30,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:08:30,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:30,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:08:30,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:08:30,407 INFO L87 Difference]: Start difference. First operand 458 states and 541 transitions. Second operand has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:08:31,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:31,274 INFO L93 Difference]: Finished difference Result 470 states and 557 transitions. [2024-11-28 02:08:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 02:08:31,275 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 141 [2024-11-28 02:08:31,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:31,277 INFO L225 Difference]: With dead ends: 470 [2024-11-28 02:08:31,277 INFO L226 Difference]: Without dead ends: 466 [2024-11-28 02:08:31,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:08:31,278 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 7 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:31,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2424 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:08:31,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-28 02:08:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 464. [2024-11-28 02:08:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 450 states have (on average 1.1866666666666668) internal successors, (534), 455 states have internal predecessors, (534), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 02:08:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 551 transitions. [2024-11-28 02:08:31,290 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 551 transitions. Word has length 141 [2024-11-28 02:08:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:31,290 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 551 transitions. [2024-11-28 02:08:31,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:08:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 551 transitions. [2024-11-28 02:08:31,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 02:08:31,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:31,315 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:31,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 02:08:31,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:31,516 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:31,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:31,517 INFO L85 PathProgramCache]: Analyzing trace with hash -764004555, now seen corresponding path program 2 times [2024-11-28 02:08:31,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:31,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627945642] [2024-11-28 02:08:31,518 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:08:31,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:31,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:31,521 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:31,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 02:08:32,212 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:08:32,212 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:08:32,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 02:08:32,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 82 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 02:08:32,617 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:08:33,347 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-28 02:08:33,347 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:33,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627945642] [2024-11-28 02:08:33,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627945642] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:08:33,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:08:33,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-28 02:08:33,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749535123] [2024-11-28 02:08:33,348 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:08:33,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 02:08:33,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:33,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 02:08:33,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:08:33,351 INFO L87 Difference]: Start difference. First operand 464 states and 551 transitions. Second operand has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 18 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:08:35,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:35,114 INFO L93 Difference]: Finished difference Result 478 states and 570 transitions. [2024-11-28 02:08:35,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 02:08:35,114 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 18 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 147 [2024-11-28 02:08:35,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:35,116 INFO L225 Difference]: With dead ends: 478 [2024-11-28 02:08:35,117 INFO L226 Difference]: Without dead ends: 472 [2024-11-28 02:08:35,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=324, Invalid=606, Unknown=0, NotChecked=0, Total=930 [2024-11-28 02:08:35,118 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 10 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:35,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2705 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:08:35,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-28 02:08:35,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2024-11-28 02:08:35,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 458 states have (on average 1.1812227074235808) internal successors, (541), 463 states have internal predecessors, (541), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 02:08:35,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 558 transitions. [2024-11-28 02:08:35,131 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 558 transitions. Word has length 147 [2024-11-28 02:08:35,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:35,131 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 558 transitions. [2024-11-28 02:08:35,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 18 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:08:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 558 transitions. [2024-11-28 02:08:35,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 02:08:35,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:35,134 INFO L218 NwaCegarLoop]: trace histogram [24, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:35,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 02:08:35,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:35,334 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:08:35,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:35,335 INFO L85 PathProgramCache]: Analyzing trace with hash 423987765, now seen corresponding path program 3 times [2024-11-28 02:08:35,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:35,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576628814] [2024-11-28 02:08:35,336 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:08:35,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:35,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:35,337 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:35,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95859a7-b940-4507-8276-ef4e20551aa5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process