./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.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_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:22:16,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:22:16,947 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 02:22:16,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:22:16,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:22:16,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:22:16,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:22:16,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:22:16,987 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:22:16,987 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:22:16,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:22:16,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:22:16,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:22:16,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:22:16,988 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:22:16,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:22:16,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:22:16,989 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:22:16,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:22:16,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:22:16,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:22:16,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:22:16,989 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:22:16,990 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:22:16,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:22:16,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:22:16,990 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:22:16,990 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:22:16,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:22:16,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:22:16,990 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:22:16,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:22:16,991 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:22:16,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:16,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:16,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:16,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:16,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:22:16,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:16,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:16,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:16,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:16,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:22:16,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:22:16,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:22:16,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:22:16,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:22:16,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:22:16,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:22:16,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:22:16,993 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_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2024-11-28 02:22:17,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:22:17,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:22:17,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:22:17,311 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:22:17,311 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:22:17,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2024-11-28 02:22:20,591 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/data/10e00b21d/7cb3c8e449a64bc79aa72ffa3baf643d/FLAG89f155ea0 [2024-11-28 02:22:21,143 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:22:21,144 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2024-11-28 02:22:21,176 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/data/10e00b21d/7cb3c8e449a64bc79aa72ffa3baf643d/FLAG89f155ea0 [2024-11-28 02:22:21,204 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/data/10e00b21d/7cb3c8e449a64bc79aa72ffa3baf643d [2024-11-28 02:22:21,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:22:21,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:22:21,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:21,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:22:21,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:22:21,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:21" (1/1) ... [2024-11-28 02:22:21,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d427a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:21, skipping insertion in model container [2024-11-28 02:22:21,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:21" (1/1) ... [2024-11-28 02:22:21,312 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:22:21,853 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:21,913 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:21,919 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:21,923 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:21,930 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:21,965 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:21,968 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:21,971 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:21,979 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,016 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,016 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,019 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,020 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,022 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,025 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,027 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,028 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,029 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,035 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,036 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,037 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,038 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,043 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:22,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:22,080 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 02:22:22,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fdfff7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:22, skipping insertion in model container [2024-11-28 02:22:22,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:22,082 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 02:22:22,085 INFO L158 Benchmark]: Toolchain (without parser) took 873.87ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 93.3MB in the end (delta: 23.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:22:22,088 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:22:22,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 869.76ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 93.3MB in the end (delta: 23.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:22:22,090 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 869.76ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 93.3MB in the end (delta: 23.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 760]: 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_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:22:24,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:22:25,037 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-28 02:22:25,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:22:25,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:22:25,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:22:25,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:22:25,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:22:25,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:22:25,112 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:22:25,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:22:25,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:22:25,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:22:25,114 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:22:25,114 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:22:25,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:22:25,115 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:22:25,115 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:22:25,115 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:22:25,115 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:22:25,115 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:22:25,115 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:22:25,116 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:22:25,116 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:22:25,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:22:25,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:22:25,116 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:22:25,116 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:22:25,117 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:22:25,117 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:22:25,118 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:22:25,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:22:25,118 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:22:25,118 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:22:25,119 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:22:25,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:25,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:25,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:25,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:25,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:22:25,120 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:25,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:25,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:25,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:25,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:22:25,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:22:25,121 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:22:25,122 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:22:25,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:22:25,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:22:25,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:22:25,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:22:25,122 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_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2024-11-28 02:22:25,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:22:25,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:22:25,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:22:25,499 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:22:25,502 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:22:25,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2024-11-28 02:22:28,540 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/data/69738b9f1/7fde3ef408e54b698522c2a97ea53182/FLAG1462dc405 [2024-11-28 02:22:29,000 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:22:29,001 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2024-11-28 02:22:29,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/data/69738b9f1/7fde3ef408e54b698522c2a97ea53182/FLAG1462dc405 [2024-11-28 02:22:29,139 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/data/69738b9f1/7fde3ef408e54b698522c2a97ea53182 [2024-11-28 02:22:29,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:22:29,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:22:29,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:29,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:22:29,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:22:29,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:29" (1/1) ... [2024-11-28 02:22:29,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5a46e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:29, skipping insertion in model container [2024-11-28 02:22:29,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:29" (1/1) ... [2024-11-28 02:22:29,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:22:29,893 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:29,934 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:29,941 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:29,952 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:29,962 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,027 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,030 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,034 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,041 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,103 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,107 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,110 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,111 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,113 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,116 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,118 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,119 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,124 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,134 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,135 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,136 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,137 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,142 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:30,172 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 02:22:30,196 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:22:30,252 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,287 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,289 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,296 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,303 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,346 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,351 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,353 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,365 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,401 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,402 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,406 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,406 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,408 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,410 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,411 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,412 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,413 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,419 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,420 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,421 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,422 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,426 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:22:30,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:30,443 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:22:30,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:30,686 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:22:30,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30 WrapperNode [2024-11-28 02:22:30,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:30,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:22:30,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:22:30,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:22:30,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:30,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:30,829 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1673 [2024-11-28 02:22:30,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:22:30,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:22:30,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:22:30,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:22:30,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:30,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:30,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:31,017 INFO L175 MemorySlicer]: Split 443 memory accesses to 3 slices as follows [2, 417, 24]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 99 writes are split as follows [0, 98, 1]. [2024-11-28 02:22:31,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:31,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:31,140 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:31,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:31,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:31,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:31,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:31,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:22:31,213 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:22:31,213 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:22:31,213 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:22:31,214 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (1/1) ... [2024-11-28 02:22:31,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:31,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:31,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:22:31,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:22:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 02:22:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 02:22:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 02:22:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 02:22:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 02:22:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:22:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:22:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 02:22:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:22:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 02:22:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 02:22:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 02:22:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:22:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:22:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:22:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:22:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:22:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:22:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 02:22:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:22:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:22:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 02:22:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:22:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:22:31,726 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:22:31,729 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:22:47,638 INFO L? ?]: Removed 228 outVars from TransFormulas that were not future-live. [2024-11-28 02:22:47,639 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:22:47,671 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:22:47,671 INFO L312 CfgBuilder]: Removed 56 assume(true) statements. [2024-11-28 02:22:47,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:47 BoogieIcfgContainer [2024-11-28 02:22:47,672 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:22:47,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:22:47,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:22:47,685 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:22:47,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:22:29" (1/3) ... [2024-11-28 02:22:47,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c34ef1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:22:47, skipping insertion in model container [2024-11-28 02:22:47,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:30" (2/3) ... [2024-11-28 02:22:47,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c34ef1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:22:47, skipping insertion in model container [2024-11-28 02:22:47,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:47" (3/3) ... [2024-11-28 02:22:47,689 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-3.i [2024-11-28 02:22:47,707 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:22:47,710 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test5-3.i that has 6 procedures, 341 locations, 1 initial locations, 58 loop locations, and 2 error locations. [2024-11-28 02:22:47,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:22:47,795 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;@75f11fca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:22:47,795 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:22:47,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 333 states, 314 states have (on average 1.6496815286624205) internal successors, (518), 323 states have internal predecessors, (518), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:22:47,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 02:22:47,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:47,816 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:47,816 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:22:47,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:47,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1464046969, now seen corresponding path program 1 times [2024-11-28 02:22:47,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:22:47,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726224493] [2024-11-28 02:22:47,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:47,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:47,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:47,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:47,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:22:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:48,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:22:48,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:48,226 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:22:48,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:22:48,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726224493] [2024-11-28 02:22:48,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726224493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:48,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:48,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:22:48,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47488641] [2024-11-28 02:22:48,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:48,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:22:48,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:22:48,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:22:48,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:22:48,272 INFO L87 Difference]: Start difference. First operand has 333 states, 314 states have (on average 1.6496815286624205) internal successors, (518), 323 states have internal predecessors, (518), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:48,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:48,325 INFO L93 Difference]: Finished difference Result 331 states and 432 transitions. [2024-11-28 02:22:48,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:22:48,328 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-28 02:22:48,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:48,340 INFO L225 Difference]: With dead ends: 331 [2024-11-28 02:22:48,341 INFO L226 Difference]: Without dead ends: 329 [2024-11-28 02:22:48,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:22:48,347 INFO L435 NwaCegarLoop]: 432 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:48,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:48,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-28 02:22:48,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-28 02:22:48,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 312 states have (on average 1.3012820512820513) internal successors, (406), 319 states have internal predecessors, (406), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:22:48,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 430 transitions. [2024-11-28 02:22:48,419 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 430 transitions. Word has length 11 [2024-11-28 02:22:48,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:48,419 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 430 transitions. [2024-11-28 02:22:48,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:48,419 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 430 transitions. [2024-11-28 02:22:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 02:22:48,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:48,420 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:48,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:22:48,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:48,621 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:22:48,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:48,622 INFO L85 PathProgramCache]: Analyzing trace with hash -379024097, now seen corresponding path program 1 times [2024-11-28 02:22:48,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:22:48,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687220428] [2024-11-28 02:22:48,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:48,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:48,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:48,625 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:48,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:22:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:48,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:22:48,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:48,915 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:22:48,915 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:22:48,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687220428] [2024-11-28 02:22:48,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687220428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:48,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:48,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:48,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140714080] [2024-11-28 02:22:48,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:48,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:48,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:22:48,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:48,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:48,918 INFO L87 Difference]: Start difference. First operand 329 states and 430 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:49,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:49,379 INFO L93 Difference]: Finished difference Result 586 states and 769 transitions. [2024-11-28 02:22:49,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:49,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-28 02:22:49,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:49,386 INFO L225 Difference]: With dead ends: 586 [2024-11-28 02:22:49,386 INFO L226 Difference]: Without dead ends: 586 [2024-11-28 02:22:49,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:49,387 INFO L435 NwaCegarLoop]: 426 mSDtfsCounter, 314 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:49,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 846 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:22:49,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-11-28 02:22:49,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 331. [2024-11-28 02:22:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 314 states have (on average 1.2993630573248407) internal successors, (408), 321 states have internal predecessors, (408), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:22:49,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 432 transitions. [2024-11-28 02:22:49,414 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 432 transitions. Word has length 11 [2024-11-28 02:22:49,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:49,415 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 432 transitions. [2024-11-28 02:22:49,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 432 transitions. [2024-11-28 02:22:49,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 02:22:49,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:49,423 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:49,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:22:49,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:49,624 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:22:49,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:49,625 INFO L85 PathProgramCache]: Analyzing trace with hash -891715380, now seen corresponding path program 1 times [2024-11-28 02:22:49,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:22:49,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [778900335] [2024-11-28 02:22:49,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:49,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:49,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:49,629 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:49,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:22:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:50,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:22:50,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:51,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:51,779 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:22:51,779 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:22:51,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778900335] [2024-11-28 02:22:51,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778900335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:51,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:51,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:51,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131459896] [2024-11-28 02:22:51,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:51,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:51,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:22:51,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:51,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:51,781 INFO L87 Difference]: Start difference. First operand 331 states and 432 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:52,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:52,497 INFO L93 Difference]: Finished difference Result 575 states and 756 transitions. [2024-11-28 02:22:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:52,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-28 02:22:52,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:52,508 INFO L225 Difference]: With dead ends: 575 [2024-11-28 02:22:52,508 INFO L226 Difference]: Without dead ends: 575 [2024-11-28 02:22:52,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:52,509 INFO L435 NwaCegarLoop]: 483 mSDtfsCounter, 218 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:52,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 899 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:22:52,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-28 02:22:52,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 517. [2024-11-28 02:22:52,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 492 states have (on average 1.3008130081300813) internal successors, (640), 504 states have internal predecessors, (640), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:22:52,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 680 transitions. [2024-11-28 02:22:52,552 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 680 transitions. Word has length 154 [2024-11-28 02:22:52,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:52,553 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 680 transitions. [2024-11-28 02:22:52,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:52,554 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 680 transitions. [2024-11-28 02:22:52,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 02:22:52,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:52,557 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:52,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:22:52,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:52,761 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:22:52,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:52,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2122640632, now seen corresponding path program 1 times [2024-11-28 02:22:52,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:22:52,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970668375] [2024-11-28 02:22:52,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:52,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:52,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:52,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:52,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:22:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:53,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:22:53,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:22:54,100 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:22:54,100 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:22:54,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970668375] [2024-11-28 02:22:54,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970668375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:54,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:54,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:54,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521782046] [2024-11-28 02:22:54,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:54,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:54,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:22:54,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:54,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:54,104 INFO L87 Difference]: Start difference. First operand 517 states and 680 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:22:55,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:55,117 INFO L93 Difference]: Finished difference Result 569 states and 748 transitions. [2024-11-28 02:22:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:55,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 169 [2024-11-28 02:22:55,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:55,123 INFO L225 Difference]: With dead ends: 569 [2024-11-28 02:22:55,123 INFO L226 Difference]: Without dead ends: 569 [2024-11-28 02:22:55,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:55,124 INFO L435 NwaCegarLoop]: 420 mSDtfsCounter, 85 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:55,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 829 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:22:55,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-28 02:22:55,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 515. [2024-11-28 02:22:55,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 490 states have (on average 1.3) internal successors, (637), 502 states have internal predecessors, (637), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:22:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 677 transitions. [2024-11-28 02:22:55,146 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 677 transitions. Word has length 169 [2024-11-28 02:22:55,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:55,147 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 677 transitions. [2024-11-28 02:22:55,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:22:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 677 transitions. [2024-11-28 02:22:55,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 02:22:55,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:55,151 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:55,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:22:55,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:55,352 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:22:55,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:55,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1227509287, now seen corresponding path program 1 times [2024-11-28 02:22:55,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:22:55,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431932414] [2024-11-28 02:22:55,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:55,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:55,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:55,358 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:55,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:22:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:56,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:22:56,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:56,446 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:22:56,446 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:22:56,446 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:22:56,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431932414] [2024-11-28 02:22:56,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431932414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:56,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:56,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:22:56,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010889296] [2024-11-28 02:22:56,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:56,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:22:56,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:22:56,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:22:56,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:22:56,449 INFO L87 Difference]: Start difference. First operand 515 states and 677 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:22:56,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:56,666 INFO L93 Difference]: Finished difference Result 533 states and 685 transitions. [2024-11-28 02:22:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:22:56,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 184 [2024-11-28 02:22:56,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:56,671 INFO L225 Difference]: With dead ends: 533 [2024-11-28 02:22:56,671 INFO L226 Difference]: Without dead ends: 533 [2024-11-28 02:22:56,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:56,672 INFO L435 NwaCegarLoop]: 400 mSDtfsCounter, 22 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:56,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1177 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:22:56,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-28 02:22:56,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531. [2024-11-28 02:22:56,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 506 states have (on average 1.2707509881422925) internal successors, (643), 518 states have internal predecessors, (643), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:22:56,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 683 transitions. [2024-11-28 02:22:56,732 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 683 transitions. Word has length 184 [2024-11-28 02:22:56,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:56,732 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 683 transitions. [2024-11-28 02:22:56,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:22:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 683 transitions. [2024-11-28 02:22:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 02:22:56,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:56,738 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:56,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:22:56,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:56,940 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:22:56,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:56,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1894891177, now seen corresponding path program 1 times [2024-11-28 02:22:56,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:22:56,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228100388] [2024-11-28 02:22:56,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:56,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:56,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:56,944 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:56,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:22:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:57,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:22:57,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:22:57,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:22:57,893 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:22:57,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228100388] [2024-11-28 02:22:57,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228100388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:57,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:57,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:57,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690401223] [2024-11-28 02:22:57,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:57,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:57,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:22:57,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:57,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:57,896 INFO L87 Difference]: Start difference. First operand 531 states and 683 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:22:58,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:58,098 INFO L93 Difference]: Finished difference Result 571 states and 723 transitions. [2024-11-28 02:22:58,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:58,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 184 [2024-11-28 02:22:58,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:58,107 INFO L225 Difference]: With dead ends: 571 [2024-11-28 02:22:58,107 INFO L226 Difference]: Without dead ends: 571 [2024-11-28 02:22:58,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:58,108 INFO L435 NwaCegarLoop]: 401 mSDtfsCounter, 8 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:58,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 787 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:22:58,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-28 02:22:58,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2024-11-28 02:22:58,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 546 states have (on average 1.250915750915751) internal successors, (683), 558 states have internal predecessors, (683), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:22:58,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 723 transitions. [2024-11-28 02:22:58,133 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 723 transitions. Word has length 184 [2024-11-28 02:22:58,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:58,134 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 723 transitions. [2024-11-28 02:22:58,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:22:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 723 transitions. [2024-11-28 02:22:58,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 02:22:58,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:58,137 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:58,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:22:58,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:58,338 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:22:58,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash 138502869, now seen corresponding path program 1 times [2024-11-28 02:22:58,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:22:58,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329475724] [2024-11-28 02:22:58,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:58,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:58,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:58,342 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:58,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:22:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:59,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:22:59,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 02:22:59,395 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:22:59,395 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:22:59,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329475724] [2024-11-28 02:22:59,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329475724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:59,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:59,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:59,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394955046] [2024-11-28 02:22:59,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:59,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:59,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:22:59,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:59,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:59,398 INFO L87 Difference]: Start difference. First operand 571 states and 723 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:22:59,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:59,617 INFO L93 Difference]: Finished difference Result 611 states and 763 transitions. [2024-11-28 02:22:59,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:59,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 184 [2024-11-28 02:22:59,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:59,621 INFO L225 Difference]: With dead ends: 611 [2024-11-28 02:22:59,622 INFO L226 Difference]: Without dead ends: 611 [2024-11-28 02:22:59,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:59,623 INFO L435 NwaCegarLoop]: 401 mSDtfsCounter, 8 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:59,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 787 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:22:59,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-28 02:22:59,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2024-11-28 02:22:59,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 586 states have (on average 1.233788395904437) internal successors, (723), 598 states have internal predecessors, (723), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:22:59,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 763 transitions. [2024-11-28 02:22:59,644 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 763 transitions. Word has length 184 [2024-11-28 02:22:59,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:59,644 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 763 transitions. [2024-11-28 02:22:59,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:22:59,645 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 763 transitions. [2024-11-28 02:22:59,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 02:22:59,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:59,648 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:59,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:22:59,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:59,852 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:22:59,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:59,853 INFO L85 PathProgramCache]: Analyzing trace with hash 272516375, now seen corresponding path program 1 times [2024-11-28 02:22:59,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:22:59,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125495142] [2024-11-28 02:22:59,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:59,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:59,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:59,856 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:59,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:23:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:00,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:23:00,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:23:01,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:23:01,527 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:23:01,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125495142] [2024-11-28 02:23:01,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125495142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:01,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:01,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:23:01,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675177974] [2024-11-28 02:23:01,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:01,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:23:01,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:23:01,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:23:01,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:23:01,530 INFO L87 Difference]: Start difference. First operand 611 states and 763 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:23:06,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:23:10,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:23:11,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:23:15,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:23:19,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:23:21,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:23:23,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:23:27,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:23:29,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:29,829 INFO L93 Difference]: Finished difference Result 534 states and 660 transitions. [2024-11-28 02:23:29,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:23:29,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 184 [2024-11-28 02:23:29,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:29,832 INFO L225 Difference]: With dead ends: 534 [2024-11-28 02:23:29,832 INFO L226 Difference]: Without dead ends: 534 [2024-11-28 02:23:29,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:29,833 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 533 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:29,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 738 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 125 Invalid, 5 Unknown, 0 Unchecked, 28.3s Time] [2024-11-28 02:23:29,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-28 02:23:29,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2024-11-28 02:23:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 514 states have (on average 1.2256809338521402) internal successors, (630), 521 states have internal predecessors, (630), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 02:23:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 660 transitions. [2024-11-28 02:23:29,849 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 660 transitions. Word has length 184 [2024-11-28 02:23:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:29,850 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 660 transitions. [2024-11-28 02:23:29,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:23:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 660 transitions. [2024-11-28 02:23:29,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 02:23:29,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:29,853 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:29,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 02:23:30,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:30,054 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:23:30,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:30,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1256596421, now seen corresponding path program 1 times [2024-11-28 02:23:30,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:23:30,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2086751978] [2024-11-28 02:23:30,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:30,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:30,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:30,057 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:30,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:23:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:31,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:23:31,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:23:31,097 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:23:31,097 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:23:31,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086751978] [2024-11-28 02:23:31,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086751978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:31,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:31,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:23:31,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234344121] [2024-11-28 02:23:31,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:31,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:23:31,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:23:31,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:23:31,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:23:31,101 INFO L87 Difference]: Start difference. First operand 534 states and 660 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:23:31,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:31,302 INFO L93 Difference]: Finished difference Result 498 states and 602 transitions. [2024-11-28 02:23:31,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:23:31,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 192 [2024-11-28 02:23:31,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:31,306 INFO L225 Difference]: With dead ends: 498 [2024-11-28 02:23:31,306 INFO L226 Difference]: Without dead ends: 498 [2024-11-28 02:23:31,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:31,311 INFO L435 NwaCegarLoop]: 386 mSDtfsCounter, 32 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:31,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1144 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:23:31,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-28 02:23:31,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2024-11-28 02:23:31,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 478 states have (on average 1.1966527196652719) internal successors, (572), 485 states have internal predecessors, (572), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 02:23:31,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 602 transitions. [2024-11-28 02:23:31,330 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 602 transitions. Word has length 192 [2024-11-28 02:23:31,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:31,331 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 602 transitions. [2024-11-28 02:23:31,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:23:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 602 transitions. [2024-11-28 02:23:31,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 02:23:31,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:31,336 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:31,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 02:23:31,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:31,541 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:23:31,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:31,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1830086957, now seen corresponding path program 1 times [2024-11-28 02:23:31,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:23:31,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886178798] [2024-11-28 02:23:31,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:31,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:31,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:31,545 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:31,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:23:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:32,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:23:32,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 02:23:32,503 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:23:32,504 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:23:32,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886178798] [2024-11-28 02:23:32,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886178798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:32,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:32,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:23:32,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950877282] [2024-11-28 02:23:32,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:32,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:23:32,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:23:32,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:23:32,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:23:32,506 INFO L87 Difference]: Start difference. First operand 498 states and 602 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:23:32,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:32,699 INFO L93 Difference]: Finished difference Result 480 states and 573 transitions. [2024-11-28 02:23:32,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:23:32,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2024-11-28 02:23:32,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:32,702 INFO L225 Difference]: With dead ends: 480 [2024-11-28 02:23:32,702 INFO L226 Difference]: Without dead ends: 480 [2024-11-28 02:23:32,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:32,703 INFO L435 NwaCegarLoop]: 374 mSDtfsCounter, 32 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:32,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1108 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:23:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-28 02:23:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2024-11-28 02:23:32,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 460 states have (on average 1.1804347826086956) internal successors, (543), 467 states have internal predecessors, (543), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 02:23:32,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 573 transitions. [2024-11-28 02:23:32,716 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 573 transitions. Word has length 192 [2024-11-28 02:23:32,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:32,717 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 573 transitions. [2024-11-28 02:23:32,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:23:32,717 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 573 transitions. [2024-11-28 02:23:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 02:23:32,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:32,719 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:32,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 02:23:32,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:32,920 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:23:32,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash 193849221, now seen corresponding path program 1 times [2024-11-28 02:23:32,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:23:32,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644627404] [2024-11-28 02:23:32,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:32,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:32,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:32,926 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:32,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:23:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:33,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:23:33,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:23:33,947 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:23:33,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:23:33,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644627404] [2024-11-28 02:23:33,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644627404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:33,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:33,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:23:33,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583814105] [2024-11-28 02:23:33,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:33,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:23:33,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:23:33,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:23:33,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:33,949 INFO L87 Difference]: Start difference. First operand 480 states and 573 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:23:34,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:34,115 INFO L93 Difference]: Finished difference Result 456 states and 535 transitions. [2024-11-28 02:23:34,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:23:34,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2024-11-28 02:23:34,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:34,118 INFO L225 Difference]: With dead ends: 456 [2024-11-28 02:23:34,118 INFO L226 Difference]: Without dead ends: 456 [2024-11-28 02:23:34,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:34,119 INFO L435 NwaCegarLoop]: 370 mSDtfsCounter, 18 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:34,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1098 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:23:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-28 02:23:34,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2024-11-28 02:23:34,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 436 states have (on average 1.158256880733945) internal successors, (505), 443 states have internal predecessors, (505), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 02:23:34,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 535 transitions. [2024-11-28 02:23:34,134 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 535 transitions. Word has length 192 [2024-11-28 02:23:34,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:34,134 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 535 transitions. [2024-11-28 02:23:34,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:23:34,135 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 535 transitions. [2024-11-28 02:23:34,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 02:23:34,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:34,137 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:34,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 02:23:34,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:34,338 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:23:34,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:34,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2032428015, now seen corresponding path program 1 times [2024-11-28 02:23:34,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:23:34,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630464993] [2024-11-28 02:23:34,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:34,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:34,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:34,341 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:34,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:23:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:35,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:23:35,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 02:23:35,474 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:23:35,474 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:23:35,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630464993] [2024-11-28 02:23:35,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630464993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:35,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:35,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:23:35,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616447921] [2024-11-28 02:23:35,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:35,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:23:35,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:23:35,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:23:35,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:23:35,477 INFO L87 Difference]: Start difference. First operand 456 states and 535 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:23:35,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:35,589 INFO L93 Difference]: Finished difference Result 459 states and 541 transitions. [2024-11-28 02:23:35,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:23:35,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 192 [2024-11-28 02:23:35,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:35,593 INFO L225 Difference]: With dead ends: 459 [2024-11-28 02:23:35,595 INFO L226 Difference]: Without dead ends: 459 [2024-11-28 02:23:35,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:23:35,596 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 0 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:35,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1148 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:23:35,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-28 02:23:35,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2024-11-28 02:23:35,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 438 states have (on average 1.1598173515981736) internal successors, (508), 446 states have internal predecessors, (508), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (17), 10 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-28 02:23:35,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 541 transitions. [2024-11-28 02:23:35,614 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 541 transitions. Word has length 192 [2024-11-28 02:23:35,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:35,614 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 541 transitions. [2024-11-28 02:23:35,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:23:35,615 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 541 transitions. [2024-11-28 02:23:35,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-28 02:23:35,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:35,617 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:35,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 02:23:35,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:35,817 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:23:35,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:35,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1453227085, now seen corresponding path program 1 times [2024-11-28 02:23:35,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:23:35,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043611130] [2024-11-28 02:23:35,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:35,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:35,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:35,821 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:35,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:23:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:36,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:23:36,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:23:37,442 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:38,347 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:23:38,347 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:23:38,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043611130] [2024-11-28 02:23:38,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043611130] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:38,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:23:38,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-28 02:23:38,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058805729] [2024-11-28 02:23:38,348 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:38,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:23:38,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:23:38,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:23:38,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:23:38,350 INFO L87 Difference]: Start difference. First operand 459 states and 541 transitions. Second operand has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:23:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:39,186 INFO L93 Difference]: Finished difference Result 995 states and 1181 transitions. [2024-11-28 02:23:39,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:23:39,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 196 [2024-11-28 02:23:39,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:39,191 INFO L225 Difference]: With dead ends: 995 [2024-11-28 02:23:39,191 INFO L226 Difference]: Without dead ends: 995 [2024-11-28 02:23:39,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:23:39,193 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 1114 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:39,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 1699 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:23:39,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-28 02:23:39,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 917. [2024-11-28 02:23:39,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 882 states have (on average 1.155328798185941) internal successors, (1019), 895 states have internal predecessors, (1019), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (36), 20 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-28 02:23:39,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1085 transitions. [2024-11-28 02:23:39,219 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1085 transitions. Word has length 196 [2024-11-28 02:23:39,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:39,220 INFO L471 AbstractCegarLoop]: Abstraction has 917 states and 1085 transitions. [2024-11-28 02:23:39,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:23:39,220 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1085 transitions. [2024-11-28 02:23:39,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2024-11-28 02:23:39,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:39,224 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:39,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 02:23:39,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:39,425 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:23:39,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:39,426 INFO L85 PathProgramCache]: Analyzing trace with hash 561301768, now seen corresponding path program 1 times [2024-11-28 02:23:39,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:23:39,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748759867] [2024-11-28 02:23:39,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:39,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:39,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:39,429 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:39,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 02:23:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:41,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 2351 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:23:41,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 149 proven. 1 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-28 02:23:41,425 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:41,600 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 121 proven. 13 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-11-28 02:23:41,600 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:23:41,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748759867] [2024-11-28 02:23:41,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748759867] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:41,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:23:41,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 02:23:41,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766035822] [2024-11-28 02:23:41,601 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:41,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:23:41,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:23:41,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:23:41,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:23:41,603 INFO L87 Difference]: Start difference. First operand 917 states and 1085 transitions. Second operand has 8 states, 8 states have (on average 28.75) internal successors, (230), 8 states have internal predecessors, (230), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:23:41,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:41,898 INFO L93 Difference]: Finished difference Result 928 states and 1116 transitions. [2024-11-28 02:23:41,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:23:41,899 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 28.75) internal successors, (230), 8 states have internal predecessors, (230), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 517 [2024-11-28 02:23:41,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:41,902 INFO L225 Difference]: With dead ends: 928 [2024-11-28 02:23:41,902 INFO L226 Difference]: Without dead ends: 928 [2024-11-28 02:23:41,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1035 GetRequests, 1026 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:23:41,903 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 4 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:41,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1523 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:23:41,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-28 02:23:41,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 926. [2024-11-28 02:23:41,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 890 states have (on average 1.1606741573033708) internal successors, (1033), 903 states have internal predecessors, (1033), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (44), 20 states have call predecessors, (44), 28 states have call successors, (44) [2024-11-28 02:23:41,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1107 transitions. [2024-11-28 02:23:41,930 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1107 transitions. Word has length 517 [2024-11-28 02:23:41,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:41,931 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1107 transitions. [2024-11-28 02:23:41,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.75) internal successors, (230), 8 states have internal predecessors, (230), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:23:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1107 transitions. [2024-11-28 02:23:41,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-11-28 02:23:41,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:41,936 INFO L218 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:41,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 02:23:42,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:42,136 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:23:42,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:42,137 INFO L85 PathProgramCache]: Analyzing trace with hash 6688516, now seen corresponding path program 2 times [2024-11-28 02:23:42,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:23:42,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051059189] [2024-11-28 02:23:42,139 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:23:42,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:42,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:42,143 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:42,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 02:23:44,308 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:23:44,308 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:23:44,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 2439 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:23:44,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 163 proven. 3 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2024-11-28 02:23:44,525 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:44,850 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 115 proven. 48 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2024-11-28 02:23:44,850 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:23:44,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051059189] [2024-11-28 02:23:44,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051059189] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:44,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:23:44,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 02:23:44,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223327202] [2024-11-28 02:23:44,851 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:44,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:23:44,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:23:44,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:23:44,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:23:44,854 INFO L87 Difference]: Start difference. First operand 926 states and 1107 transitions. Second operand has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:23:45,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:45,418 INFO L93 Difference]: Finished difference Result 934 states and 1117 transitions. [2024-11-28 02:23:45,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:23:45,419 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 525 [2024-11-28 02:23:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:45,423 INFO L225 Difference]: With dead ends: 934 [2024-11-28 02:23:45,424 INFO L226 Difference]: Without dead ends: 932 [2024-11-28 02:23:45,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1053 GetRequests, 1040 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:23:45,425 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 6 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:45,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1531 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:23:45,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2024-11-28 02:23:45,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 930. [2024-11-28 02:23:45,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 894 states have (on average 1.162192393736018) internal successors, (1039), 907 states have internal predecessors, (1039), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (36), 20 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-28 02:23:45,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1105 transitions. [2024-11-28 02:23:45,452 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1105 transitions. Word has length 525 [2024-11-28 02:23:45,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:45,452 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1105 transitions. [2024-11-28 02:23:45,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:23:45,453 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1105 transitions. [2024-11-28 02:23:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-28 02:23:45,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:45,458 INFO L218 NwaCegarLoop]: trace histogram [20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:45,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 02:23:45,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:45,659 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:23:45,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:45,659 INFO L85 PathProgramCache]: Analyzing trace with hash 253897860, now seen corresponding path program 3 times [2024-11-28 02:23:45,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:23:45,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720111075] [2024-11-28 02:23:45,662 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:23:45,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:45,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:45,667 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:45,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a63c64-241e-4266-8270-0eaeb9490ae5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process