./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.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_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1 --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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:00:52,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:00:52,977 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-12-02 13:00:52,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:00:52,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:00:53,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:00:53,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:00:53,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:00:53,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:00:53,006 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:00:53,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:00:53,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:00:53,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:00:53,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:00:53,007 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:00:53,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:00:53,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:00:53,008 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:00:53,008 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:00:53,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:00:53,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:00:53,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:00:53,008 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 13:00:53,008 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 13:00:53,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:00:53,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:00:53,008 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:00:53,009 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:00:53,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:00:53,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:00:53,009 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:00:53,009 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:00:53,009 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:00:53,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:00:53,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:00:53,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:00:53,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:00:53,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:00:53,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:00:53,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:00:53,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:00:53,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:00:53,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:00:53,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:00:53,010 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:00:53,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:00:53,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:00:53,010 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:00:53,010 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:00:53,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:00:53,011 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_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1 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 -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-12-02 13:00:53,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:00:53,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:00:53,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:00:53,249 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:00:53,250 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:00:53,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2024-12-02 13:00:55,884 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/data/87513227c/088ca818b27b4adfbbcf4c41b30966f2/FLAG6a2cd02bc [2024-12-02 13:00:56,144 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:00:56,145 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2024-12-02 13:00:56,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/data/87513227c/088ca818b27b4adfbbcf4c41b30966f2/FLAG6a2cd02bc [2024-12-02 13:00:56,171 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/data/87513227c/088ca818b27b4adfbbcf4c41b30966f2 [2024-12-02 13:00:56,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:00:56,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:00:56,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:00:56,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:00:56,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:00:56,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:00:56" (1/1) ... [2024-12-02 13:00:56,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e5bec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:56, skipping insertion in model container [2024-12-02 13:00:56,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:00:56" (1/1) ... [2024-12-02 13:00:56,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:00:56,505 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,535 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,539 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,543 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,550 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,581 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,582 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,584 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,585 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,586 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,589 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,590 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,591 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,591 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,595 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:00:56,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:00:56,614 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) [2024-12-02 13:00:56,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@277c76ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:56, skipping insertion in model container [2024-12-02 13:00:56,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:00:56,615 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-12-02 13:00:56,617 INFO L158 Benchmark]: Toolchain (without parser) took 442.08ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 94.5MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:00:56,617 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 82.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:00:56,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.16ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 94.8MB in the end (delta: 19.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:00:56,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 82.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.16ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 94.8MB in the end (delta: 19.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 831]: 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_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1 --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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:00:58,355 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:00:58,439 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-12-02 13:00:58,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:00:58,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:00:58,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:00:58,470 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:00:58,470 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:00:58,470 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:00:58,470 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:00:58,470 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:00:58,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:00:58,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:00:58,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:00:58,471 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:00:58,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:00:58,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:00:58,471 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:00:58,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:00:58,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:00:58,472 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:00:58,473 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:00:58,473 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:00:58,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:00:58,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:00:58,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:00:58,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:00:58,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:00:58,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:00:58,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:00:58,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:00:58,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:00:58,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:00:58,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:00:58,474 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 13:00:58,474 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 13:00:58,474 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:00:58,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:00:58,474 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:00:58,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:00:58,474 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_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1 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 -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-12-02 13:00:58,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:00:58,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:00:58,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:00:58,726 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:00:58,727 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:00:58,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2024-12-02 13:01:01,399 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/data/0bd6e57fc/22767cf8f1ff4b49b6e359703f27cfb1/FLAG1ed46de26 [2024-12-02 13:01:01,671 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:01:01,672 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2024-12-02 13:01:01,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/data/0bd6e57fc/22767cf8f1ff4b49b6e359703f27cfb1/FLAG1ed46de26 [2024-12-02 13:01:01,699 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/data/0bd6e57fc/22767cf8f1ff4b49b6e359703f27cfb1 [2024-12-02 13:01:01,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:01:01,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:01:01,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:01:01,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:01:01,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:01:01,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:01:01" (1/1) ... [2024-12-02 13:01:01,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c5b3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:01, skipping insertion in model container [2024-12-02 13:01:01,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:01:01" (1/1) ... [2024-12-02 13:01:01,738 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:01:02,048 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,080 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,084 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,087 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,095 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,124 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,125 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,128 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,128 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,130 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,132 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,134 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,135 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,135 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,140 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:01:02,157 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-12-02 13:01:02,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:01:02,198 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,214 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,216 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,219 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,224 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,252 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,252 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,254 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,254 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,255 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,257 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,258 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,258 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,259 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,262 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 13:01:02,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:01:02,268 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:01:02,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:01:02,372 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:01:02,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02 WrapperNode [2024-12-02 13:01:02,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:01:02,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:01:02,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:01:02,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:01:02,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,437 INFO L138 Inliner]: procedures = 210, calls = 273, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1005 [2024-12-02 13:01:02,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:01:02,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:01:02,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:01:02,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:01:02,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,454 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,537 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 218, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-12-02 13:01:02,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,538 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,567 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:01:02,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:01:02,594 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:01:02,594 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:01:02,595 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (1/1) ... [2024-12-02 13:01:02,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:01:02,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:02,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:01:02,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:01:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 13:01:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 13:01:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 13:01:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 13:01:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 13:01:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 13:01:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 13:01:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 13:01:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 13:01:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 13:01:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 13:01:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 13:01:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:01:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 13:01:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 13:01:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 13:01:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:01:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:01:02,844 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:01:02,845 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:01:10,712 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2024-12-02 13:01:10,712 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:01:10,724 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:01:10,725 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-12-02 13:01:10,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:01:10 BoogieIcfgContainer [2024-12-02 13:01:10,725 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:01:10,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:01:10,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:01:10,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:01:10,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:01:01" (1/3) ... [2024-12-02 13:01:10,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e81f12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:01:10, skipping insertion in model container [2024-12-02 13:01:10,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:01:02" (2/3) ... [2024-12-02 13:01:10,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e81f12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:01:10, skipping insertion in model container [2024-12-02 13:01:10,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:01:10" (3/3) ... [2024-12-02 13:01:10,734 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test2-2.i [2024-12-02 13:01:10,747 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:01:10,748 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_nondet_test2-2.i that has 4 procedures, 213 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2024-12-02 13:01:10,779 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:01:10,790 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;@53b90f85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:01:10,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 13:01:10,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 198 states have (on average 1.6464646464646464) internal successors, (326), 200 states have internal predecessors, (326), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:10,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-02 13:01:10,799 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:10,799 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-12-02 13:01:10,800 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:10,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1665255, now seen corresponding path program 1 times [2024-12-02 13:01:10,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:10,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125071512] [2024-12-02 13:01:10,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:10,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:10,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:10,817 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:10,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:01:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:10,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:01:10,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:11,074 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 [2024-12-02 13:01:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:01:11,079 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:11,079 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:11,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125071512] [2024-12-02 13:01:11,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125071512] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:11,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:11,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:01:11,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170669098] [2024-12-02 13:01:11,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:11,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:01:11,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:11,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:01:11,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-12-02 13:01:11,110 INFO L87 Difference]: Start difference. First operand has 205 states, 198 states have (on average 1.6464646464646464) internal successors, (326), 200 states have internal predecessors, (326), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2024-12-02 13:01:15,396 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 [] [2024-12-02 13:01:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:15,755 INFO L93 Difference]: Finished difference Result 305 states and 394 transitions. [2024-12-02 13:01:15,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:01:15,762 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 [2024-12-02 13:01:15,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:15,768 INFO L225 Difference]: With dead ends: 305 [2024-12-02 13:01:15,768 INFO L226 Difference]: Without dead ends: 302 [2024-12-02 13:01:15,769 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 [2024-12-02 13:01:15,771 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 128 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 395 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:15,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 495 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 395 Unchecked, 4.6s Time] [2024-12-02 13:01:15,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-12-02 13:01:15,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 202. [2024-12-02 13:01:15,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 196 states have (on average 1.2908163265306123) internal successors, (253), 197 states have internal predecessors, (253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:15,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 259 transitions. [2024-12-02 13:01:15,810 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 259 transitions. Word has length 4 [2024-12-02 13:01:15,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:15,810 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 259 transitions. [2024-12-02 13:01:15,810 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) [2024-12-02 13:01:15,810 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 259 transitions. [2024-12-02 13:01:15,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-02 13:01:15,811 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:15,811 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:01:15,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:01:16,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:16,012 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:16,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:16,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1502561021, now seen corresponding path program 1 times [2024-12-02 13:01:16,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:16,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1428897859] [2024-12-02 13:01:16,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:16,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:16,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:16,015 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:16,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:01:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:16,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:01:16,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:16,360 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 [2024-12-02 13:01:16,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:01:16,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:16,360 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:16,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428897859] [2024-12-02 13:01:16,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428897859] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:16,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:16,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:01:16,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205895818] [2024-12-02 13:01:16,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:16,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:01:16,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:16,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:01:16,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-12-02 13:01:16,363 INFO L87 Difference]: Start difference. First operand 202 states and 259 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:01:20,546 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 [] [2024-12-02 13:01:21,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:21,248 INFO L93 Difference]: Finished difference Result 303 states and 390 transitions. [2024-12-02 13:01:21,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:01:21,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-12-02 13:01:21,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:21,255 INFO L225 Difference]: With dead ends: 303 [2024-12-02 13:01:21,255 INFO L226 Difference]: Without dead ends: 301 [2024-12-02 13:01:21,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-12-02 13:01:21,256 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 118 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 389 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:21,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 492 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 389 Unchecked, 4.9s Time] [2024-12-02 13:01:21,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-12-02 13:01:21,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 273. [2024-12-02 13:01:21,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 267 states have (on average 1.299625468164794) internal successors, (347), 268 states have internal predecessors, (347), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:21,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 353 transitions. [2024-12-02 13:01:21,274 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 353 transitions. Word has length 14 [2024-12-02 13:01:21,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:21,274 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 353 transitions. [2024-12-02 13:01:21,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:01:21,275 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 353 transitions. [2024-12-02 13:01:21,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-02 13:01:21,275 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:21,275 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] [2024-12-02 13:01:21,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:01:21,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:21,476 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:21,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:21,476 INFO L85 PathProgramCache]: Analyzing trace with hash -305220010, now seen corresponding path program 1 times [2024-12-02 13:01:21,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:21,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827870798] [2024-12-02 13:01:21,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:21,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:21,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:21,479 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:21,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:01:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:21,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:01:21,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:01:21,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:21,795 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:21,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827870798] [2024-12-02 13:01:21,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827870798] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:21,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:21,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:01:21,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111946045] [2024-12-02 13:01:21,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:21,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:01:21,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:21,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:01:21,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:01:21,796 INFO L87 Difference]: Start difference. First operand 273 states and 353 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-12-02 13:01:25,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 13:01:27,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:27,016 INFO L93 Difference]: Finished difference Result 379 states and 484 transitions. [2024-12-02 13:01:27,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:01:27,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2024-12-02 13:01:27,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:27,019 INFO L225 Difference]: With dead ends: 379 [2024-12-02 13:01:27,019 INFO L226 Difference]: Without dead ends: 375 [2024-12-02 13:01:27,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:01:27,020 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 153 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:27,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 694 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-12-02 13:01:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-12-02 13:01:27,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 342. [2024-12-02 13:01:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 336 states have (on average 1.2886904761904763) internal successors, (433), 337 states have internal predecessors, (433), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:27,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 439 transitions. [2024-12-02 13:01:27,033 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 439 transitions. Word has length 23 [2024-12-02 13:01:27,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:27,033 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 439 transitions. [2024-12-02 13:01:27,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-12-02 13:01:27,033 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 439 transitions. [2024-12-02 13:01:27,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 13:01:27,034 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:27,034 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] [2024-12-02 13:01:27,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:01:27,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:27,235 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:27,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:27,235 INFO L85 PathProgramCache]: Analyzing trace with hash 613955724, now seen corresponding path program 1 times [2024-12-02 13:01:27,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:27,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774785497] [2024-12-02 13:01:27,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:27,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:27,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:27,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:27,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:01:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:27,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:01:27,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:27,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:01:27,498 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:27,499 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:27,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774785497] [2024-12-02 13:01:27,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774785497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:27,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:27,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:01:27,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545365019] [2024-12-02 13:01:27,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:27,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:01:27,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:27,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:01:27,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:01:27,500 INFO L87 Difference]: Start difference. First operand 342 states and 439 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-12-02 13:01:27,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:27,637 INFO L93 Difference]: Finished difference Result 369 states and 451 transitions. [2024-12-02 13:01:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:01:27,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2024-12-02 13:01:27,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:27,639 INFO L225 Difference]: With dead ends: 369 [2024-12-02 13:01:27,639 INFO L226 Difference]: Without dead ends: 369 [2024-12-02 13:01:27,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:01:27,640 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 23 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:27,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 663 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:01:27,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-12-02 13:01:27,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 366. [2024-12-02 13:01:27,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 360 states have (on average 1.2277777777777779) internal successors, (442), 361 states have internal predecessors, (442), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:27,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 448 transitions. [2024-12-02 13:01:27,654 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 448 transitions. Word has length 49 [2024-12-02 13:01:27,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:27,654 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 448 transitions. [2024-12-02 13:01:27,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-12-02 13:01:27,654 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 448 transitions. [2024-12-02 13:01:27,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 13:01:27,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:27,655 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] [2024-12-02 13:01:27,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:01:27,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:27,855 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:27,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:27,856 INFO L85 PathProgramCache]: Analyzing trace with hash 395101006, now seen corresponding path program 1 times [2024-12-02 13:01:27,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:27,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432403241] [2024-12-02 13:01:27,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:27,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:27,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:27,858 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:27,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 13:01:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:28,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:01:28,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:01:28,067 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:28,067 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:28,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432403241] [2024-12-02 13:01:28,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432403241] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:28,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:28,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:01:28,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630239176] [2024-12-02 13:01:28,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:28,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:01:28,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:28,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:01:28,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:01:28,068 INFO L87 Difference]: Start difference. First operand 366 states and 448 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-12-02 13:01:28,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:28,172 INFO L93 Difference]: Finished difference Result 330 states and 391 transitions. [2024-12-02 13:01:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:01:28,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2024-12-02 13:01:28,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:28,174 INFO L225 Difference]: With dead ends: 330 [2024-12-02 13:01:28,174 INFO L226 Difference]: Without dead ends: 330 [2024-12-02 13:01:28,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:01:28,175 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 27 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 660 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 [2024-12-02 13:01:28,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 660 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:01:28,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-12-02 13:01:28,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-12-02 13:01:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 324 states have (on average 1.1882716049382716) internal successors, (385), 325 states have internal predecessors, (385), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 391 transitions. [2024-12-02 13:01:28,180 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 391 transitions. Word has length 49 [2024-12-02 13:01:28,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:28,180 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 391 transitions. [2024-12-02 13:01:28,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-12-02 13:01:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 391 transitions. [2024-12-02 13:01:28,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 13:01:28,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:28,181 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] [2024-12-02 13:01:28,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 13:01:28,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:28,382 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:28,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:28,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1767663104, now seen corresponding path program 1 times [2024-12-02 13:01:28,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:28,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [867614194] [2024-12-02 13:01:28,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:28,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:28,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:28,384 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:28,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 13:01:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:28,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 13:01:28,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:28,571 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 13:01:28,572 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 13:01:28,572 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 13:01:28,578 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 [2024-12-02 13:01:28,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:01:28,678 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 [2024-12-02 13:01:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:01:28,750 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:28,750 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:28,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867614194] [2024-12-02 13:01:28,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867614194] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:28,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:28,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:01:28,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119660796] [2024-12-02 13:01:28,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:28,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:01:28,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:28,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:01:28,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:01:28,752 INFO L87 Difference]: Start difference. First operand 330 states and 391 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-12-02 13:01:29,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:29,396 INFO L93 Difference]: Finished difference Result 339 states and 411 transitions. [2024-12-02 13:01:29,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:01:29,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 49 [2024-12-02 13:01:29,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:29,398 INFO L225 Difference]: With dead ends: 339 [2024-12-02 13:01:29,398 INFO L226 Difference]: Without dead ends: 336 [2024-12-02 13:01:29,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:01:29,399 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 112 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:29,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 918 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:01:29,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-12-02 13:01:29,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 287. [2024-12-02 13:01:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 281 states have (on average 1.209964412811388) internal successors, (340), 282 states have internal predecessors, (340), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 346 transitions. [2024-12-02 13:01:29,412 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 346 transitions. Word has length 49 [2024-12-02 13:01:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:29,413 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 346 transitions. [2024-12-02 13:01:29,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-12-02 13:01:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 346 transitions. [2024-12-02 13:01:29,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 13:01:29,414 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:29,414 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] [2024-12-02 13:01:29,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 13:01:29,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:29,615 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:29,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:29,616 INFO L85 PathProgramCache]: Analyzing trace with hash 732727456, now seen corresponding path program 1 times [2024-12-02 13:01:29,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:29,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [917942806] [2024-12-02 13:01:29,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:29,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:29,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:29,618 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:29,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 13:01:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:29,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:01:29,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:01:30,001 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:30,001 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:30,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917942806] [2024-12-02 13:01:30,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917942806] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:30,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:30,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:01:30,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409085682] [2024-12-02 13:01:30,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:30,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:01:30,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:30,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:01:30,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:01:30,002 INFO L87 Difference]: Start difference. First operand 287 states and 346 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:30,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:30,131 INFO L93 Difference]: Finished difference Result 327 states and 386 transitions. [2024-12-02 13:01:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:01:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-12-02 13:01:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:30,133 INFO L225 Difference]: With dead ends: 327 [2024-12-02 13:01:30,133 INFO L226 Difference]: Without dead ends: 327 [2024-12-02 13:01:30,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:01:30,134 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 8 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 431 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 [2024-12-02 13:01:30,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 431 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:01:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-12-02 13:01:30,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2024-12-02 13:01:30,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 321 states have (on average 1.1838006230529594) internal successors, (380), 322 states have internal predecessors, (380), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:30,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 386 transitions. [2024-12-02 13:01:30,142 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 386 transitions. Word has length 86 [2024-12-02 13:01:30,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:30,142 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 386 transitions. [2024-12-02 13:01:30,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:30,142 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 386 transitions. [2024-12-02 13:01:30,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 13:01:30,144 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:30,144 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] [2024-12-02 13:01:30,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 13:01:30,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:30,344 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:30,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:30,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1150124062, now seen corresponding path program 1 times [2024-12-02 13:01:30,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:30,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385301107] [2024-12-02 13:01:30,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:30,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:30,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:30,347 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:30,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 13:01:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:30,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:01:30,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:30,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:01:30,934 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:30,934 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:30,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385301107] [2024-12-02 13:01:30,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385301107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:30,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:30,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:01:30,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986529974] [2024-12-02 13:01:30,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:30,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:01:30,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:30,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:01:30,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:01:30,936 INFO L87 Difference]: Start difference. First operand 327 states and 386 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:35,332 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 [] [2024-12-02 13:01:39,340 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 [] [2024-12-02 13:01:40,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:40,706 INFO L93 Difference]: Finished difference Result 351 states and 426 transitions. [2024-12-02 13:01:40,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:01:40,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-12-02 13:01:40,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:40,709 INFO L225 Difference]: With dead ends: 351 [2024-12-02 13:01:40,709 INFO L226 Difference]: Without dead ends: 351 [2024-12-02 13:01:40,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:01:40,710 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 419 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:40,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 415 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2024-12-02 13:01:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-12-02 13:01:40,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 282. [2024-12-02 13:01:40,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 276 states have (on average 1.1956521739130435) internal successors, (330), 277 states have internal predecessors, (330), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 336 transitions. [2024-12-02 13:01:40,717 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 336 transitions. Word has length 86 [2024-12-02 13:01:40,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:40,717 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 336 transitions. [2024-12-02 13:01:40,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 336 transitions. [2024-12-02 13:01:40,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 13:01:40,719 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:40,719 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:01:40,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 13:01:40,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:40,919 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:40,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:40,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1170138345, now seen corresponding path program 1 times [2024-12-02 13:01:40,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:40,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62421559] [2024-12-02 13:01:40,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:40,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:40,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:40,922 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:40,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 13:01:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:41,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:01:41,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:41,321 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 13:01:41,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:41,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:41,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62421559] [2024-12-02 13:01:41,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62421559] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:41,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:41,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:01:41,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501474151] [2024-12-02 13:01:41,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:41,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:01:41,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:41,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:01:41,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:01:41,323 INFO L87 Difference]: Start difference. First operand 282 states and 336 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:41,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:41,437 INFO L93 Difference]: Finished difference Result 246 states and 278 transitions. [2024-12-02 13:01:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:01:41,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2024-12-02 13:01:41,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:41,439 INFO L225 Difference]: With dead ends: 246 [2024-12-02 13:01:41,439 INFO L226 Difference]: Without dead ends: 246 [2024-12-02 13:01:41,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:01:41,440 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 32 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:41,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 607 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:01:41,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-12-02 13:01:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-12-02 13:01:41,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 240 states have (on average 1.1333333333333333) internal successors, (272), 241 states have internal predecessors, (272), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:41,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 278 transitions. [2024-12-02 13:01:41,444 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 278 transitions. Word has length 95 [2024-12-02 13:01:41,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:41,444 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 278 transitions. [2024-12-02 13:01:41,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 278 transitions. [2024-12-02 13:01:41,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 13:01:41,445 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:41,445 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:01:41,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 13:01:41,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:41,646 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:41,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:41,646 INFO L85 PathProgramCache]: Analyzing trace with hash 888395337, now seen corresponding path program 1 times [2024-12-02 13:01:41,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:41,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104022133] [2024-12-02 13:01:41,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:41,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:41,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:41,648 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:41,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 13:01:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:42,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:01:42,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:42,057 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 13:01:42,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:42,057 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:42,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104022133] [2024-12-02 13:01:42,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104022133] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:42,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:42,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:01:42,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762084615] [2024-12-02 13:01:42,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:42,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:01:42,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:42,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:01:42,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:01:42,058 INFO L87 Difference]: Start difference. First operand 246 states and 278 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:46,403 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 [] [2024-12-02 13:01:50,408 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 [] [2024-12-02 13:01:52,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:52,054 INFO L93 Difference]: Finished difference Result 248 states and 280 transitions. [2024-12-02 13:01:52,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:01:52,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2024-12-02 13:01:52,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:52,058 INFO L225 Difference]: With dead ends: 248 [2024-12-02 13:01:52,058 INFO L226 Difference]: Without dead ends: 248 [2024-12-02 13:01:52,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:01:52,058 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 204 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:52,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 405 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2024-12-02 13:01:52,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-12-02 13:01:52,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 247. [2024-12-02 13:01:52,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 241 states have (on average 1.1327800829875518) internal successors, (273), 242 states have internal predecessors, (273), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:01:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 279 transitions. [2024-12-02 13:01:52,062 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 279 transitions. Word has length 95 [2024-12-02 13:01:52,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:52,063 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 279 transitions. [2024-12-02 13:01:52,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:52,063 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 279 transitions. [2024-12-02 13:01:52,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 13:01:52,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:52,064 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:01:52,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 13:01:52,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:52,265 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:52,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:52,265 INFO L85 PathProgramCache]: Analyzing trace with hash 890242379, now seen corresponding path program 1 times [2024-12-02 13:01:52,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:52,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [76068004] [2024-12-02 13:01:52,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:52,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:52,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:52,267 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:52,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 13:01:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:52,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:01:52,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 13:01:52,726 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:52,726 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:52,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76068004] [2024-12-02 13:01:52,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76068004] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:52,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:52,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:01:52,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650736816] [2024-12-02 13:01:52,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:52,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:01:52,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:52,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:01:52,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:01:52,727 INFO L87 Difference]: Start difference. First operand 247 states and 279 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:52,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:52,783 INFO L93 Difference]: Finished difference Result 250 states and 283 transitions. [2024-12-02 13:01:52,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:01:52,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2024-12-02 13:01:52,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:52,786 INFO L225 Difference]: With dead ends: 250 [2024-12-02 13:01:52,786 INFO L226 Difference]: Without dead ends: 250 [2024-12-02 13:01:52,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:01:52,787 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:52,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 674 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:01:52,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-12-02 13:01:52,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2024-12-02 13:01:52,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 243 states have (on average 1.1358024691358024) internal successors, (276), 245 states have internal predecessors, (276), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 13:01:52,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 283 transitions. [2024-12-02 13:01:52,796 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 283 transitions. Word has length 95 [2024-12-02 13:01:52,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:52,796 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 283 transitions. [2024-12-02 13:01:52,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:52,796 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 283 transitions. [2024-12-02 13:01:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 13:01:52,797 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:52,797 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:01:52,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 13:01:52,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:52,998 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:52,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:52,998 INFO L85 PathProgramCache]: Analyzing trace with hash 549462893, now seen corresponding path program 1 times [2024-12-02 13:01:52,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:52,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140814044] [2024-12-02 13:01:52,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:52,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:52,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:53,001 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:53,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 13:01:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:53,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:01:53,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:53,565 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 13:01:53,565 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:01:53,711 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 13:01:53,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:53,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140814044] [2024-12-02 13:01:53,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140814044] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:01:53,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:01:53,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-12-02 13:01:53,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133610982] [2024-12-02 13:01:53,711 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:01:53,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:01:53,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:53,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:01:53,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:01:53,713 INFO L87 Difference]: Start difference. First operand 250 states and 283 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 13:01:53,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:53,868 INFO L93 Difference]: Finished difference Result 261 states and 300 transitions. [2024-12-02 13:01:53,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:01:53,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 97 [2024-12-02 13:01:53,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:53,870 INFO L225 Difference]: With dead ends: 261 [2024-12-02 13:01:53,870 INFO L226 Difference]: Without dead ends: 261 [2024-12-02 13:01:53,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:01:53,871 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 5 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:53,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 674 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:01:53,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-12-02 13:01:53,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 259. [2024-12-02 13:01:53,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 251 states have (on average 1.155378486055777) internal successors, (290), 253 states have internal predecessors, (290), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-12-02 13:01:53,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 298 transitions. [2024-12-02 13:01:53,878 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 298 transitions. Word has length 97 [2024-12-02 13:01:53,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:53,878 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 298 transitions. [2024-12-02 13:01:53,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 13:01:53,878 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 298 transitions. [2024-12-02 13:01:53,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 13:01:53,879 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:53,879 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:01:53,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 13:01:54,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:54,080 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:54,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:54,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1570935499, now seen corresponding path program 2 times [2024-12-02 13:01:54,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:54,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137826143] [2024-12-02 13:01:54,081 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:01:54,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:54,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:54,082 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:54,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 13:01:54,524 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:01:54,524 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:01:54,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:01:54,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:55,106 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 13:01:55,107 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 13:01:55,107 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 13:01:55,109 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 [2024-12-02 13:01:55,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:01:55,192 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 [2024-12-02 13:01:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 13:01:55,224 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:01:55,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:55,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137826143] [2024-12-02 13:01:55,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137826143] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:01:55,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:01:55,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:01:55,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089115332] [2024-12-02 13:01:55,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:01:55,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:01:55,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:55,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:01:55,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:01:55,225 INFO L87 Difference]: Start difference. First operand 259 states and 298 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:55,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:55,544 INFO L93 Difference]: Finished difference Result 322 states and 367 transitions. [2024-12-02 13:01:55,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:01:55,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2024-12-02 13:01:55,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:55,547 INFO L225 Difference]: With dead ends: 322 [2024-12-02 13:01:55,547 INFO L226 Difference]: Without dead ends: 322 [2024-12-02 13:01:55,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:01:55,547 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 245 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:55,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 642 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:01:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-12-02 13:01:55,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 261. [2024-12-02 13:01:55,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 253 states have (on average 1.1541501976284585) internal successors, (292), 255 states have internal predecessors, (292), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-12-02 13:01:55,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 300 transitions. [2024-12-02 13:01:55,554 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 300 transitions. Word has length 101 [2024-12-02 13:01:55,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:55,554 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 300 transitions. [2024-12-02 13:01:55,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 13:01:55,554 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 300 transitions. [2024-12-02 13:01:55,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 13:01:55,555 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:55,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:01:55,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 13:01:55,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:55,756 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:55,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:55,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1686110049, now seen corresponding path program 1 times [2024-12-02 13:01:55,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:55,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872797912] [2024-12-02 13:01:55,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:01:55,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:55,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:55,759 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:55,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 13:01:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:01:56,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:01:56,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 13:01:56,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:01:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 13:01:56,511 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:56,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872797912] [2024-12-02 13:01:56,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872797912] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:01:56,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:01:56,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-02 13:01:56,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143641360] [2024-12-02 13:01:56,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:01:56,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:01:56,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:56,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:01:56,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:01:56,513 INFO L87 Difference]: Start difference. First operand 261 states and 300 transitions. Second operand has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 13:01:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:56,841 INFO L93 Difference]: Finished difference Result 269 states and 310 transitions. [2024-12-02 13:01:56,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:01:56,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2024-12-02 13:01:56,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:56,843 INFO L225 Difference]: With dead ends: 269 [2024-12-02 13:01:56,843 INFO L226 Difference]: Without dead ends: 267 [2024-12-02 13:01:56,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:01:56,843 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 6 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:56,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 903 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:01:56,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-12-02 13:01:56,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 265. [2024-12-02 13:01:56,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 257 states have (on average 1.1595330739299612) internal successors, (298), 259 states have internal predecessors, (298), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 13:01:56,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 305 transitions. [2024-12-02 13:01:56,849 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 305 transitions. Word has length 135 [2024-12-02 13:01:56,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:56,849 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 305 transitions. [2024-12-02 13:01:56,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 13:01:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 305 transitions. [2024-12-02 13:01:56,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 13:01:56,850 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:56,850 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] [2024-12-02 13:01:56,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 13:01:57,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:57,051 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:57,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:57,051 INFO L85 PathProgramCache]: Analyzing trace with hash 383274655, now seen corresponding path program 2 times [2024-12-02 13:01:57,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:57,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073087470] [2024-12-02 13:01:57,052 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:01:57,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:57,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:57,053 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:57,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 13:01:57,591 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:01:57,591 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:01:57,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:01:57,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:01:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 13:01:57,740 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:01:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 13:01:58,096 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:01:58,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073087470] [2024-12-02 13:01:58,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073087470] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:01:58,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:01:58,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-12-02 13:01:58,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173870294] [2024-12-02 13:01:58,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:01:58,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 13:01:58,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:01:58,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 13:01:58,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:01:58,097 INFO L87 Difference]: Start difference. First operand 265 states and 305 transitions. Second operand has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 13:01:58,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:01:58,650 INFO L93 Difference]: Finished difference Result 277 states and 321 transitions. [2024-12-02 13:01:58,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 13:01:58,651 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 139 [2024-12-02 13:01:58,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:01:58,652 INFO L225 Difference]: With dead ends: 277 [2024-12-02 13:01:58,652 INFO L226 Difference]: Without dead ends: 273 [2024-12-02 13:01:58,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:01:58,652 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 7 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:01:58,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1348 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:01:58,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-12-02 13:01:58,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2024-12-02 13:01:58,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 263 states have (on average 1.1711026615969582) internal successors, (308), 265 states have internal predecessors, (308), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 13:01:58,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 315 transitions. [2024-12-02 13:01:58,657 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 315 transitions. Word has length 139 [2024-12-02 13:01:58,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:01:58,658 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 315 transitions. [2024-12-02 13:01:58,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 13:01:58,658 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 315 transitions. [2024-12-02 13:01:58,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 13:01:58,659 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:01:58,659 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] [2024-12-02 13:01:58,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 13:01:58,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:58,860 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 13:01:58,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:01:58,860 INFO L85 PathProgramCache]: Analyzing trace with hash 938643551, now seen corresponding path program 3 times [2024-12-02 13:01:58,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:01:58,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347070947] [2024-12-02 13:01:58,861 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:01:58,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:01:58,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:01:58,862 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:01:58,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c5f580-3b70-4bad-ad74-9ab85795e6aa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process