./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX --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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:58:37,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:58:37,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-08 16:58:37,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:58:37,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:58:37,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:58:37,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:58:37,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:58:37,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:58:37,230 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:58:37,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:58:37,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:58:37,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:58:37,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:58:37,232 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:58:37,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:58:37,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:58:37,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:58:37,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:58:37,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:58:37,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:58:37,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:58:37,235 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 16:58:37,236 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 16:58:37,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:58:37,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:58:37,237 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:58:37,237 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:58:37,238 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:58:37,238 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:58:37,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:58:37,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:58:37,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:58:37,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:58:37,240 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:58:37,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:58:37,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:58:37,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:58:37,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:58:37,242 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:58:37,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:58:37,243 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:58:37,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:58:37,244 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:58:37,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:58:37,244 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2024-11-08 16:58:37,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:58:37,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:58:37,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:58:37,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:58:37,568 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:58:37,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-1.i Unable to find full path for "g++" [2024-11-08 16:58:39,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:58:39,931 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:58:39,935 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-1.i [2024-11-08 16:58:39,961 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/data/4ef16de57/2617b8e053dd47d284608f9f51f217f4/FLAGb9d19a219 [2024-11-08 16:58:40,142 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/data/4ef16de57/2617b8e053dd47d284608f9f51f217f4 [2024-11-08 16:58:40,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:58:40,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:58:40,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:58:40,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:58:40,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:58:40,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:58:40" (1/1) ... [2024-11-08 16:58:40,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161fee84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:40, skipping insertion in model container [2024-11-08 16:58:40,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:58:40" (1/1) ... [2024-11-08 16:58:40,232 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:58:40,701 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,737 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,742 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,751 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,770 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,819 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,819 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,826 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,827 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,830 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,832 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,833 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,835 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,840 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:40,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:58:40,864 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) [2024-11-08 16:58:40,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36ee6957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:40, skipping insertion in model container [2024-11-08 16:58:40,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:58:40,868 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-08 16:58:40,870 INFO L158 Benchmark]: Toolchain (without parser) took 724.07ms. Allocated memory is still 134.2MB. Free memory was 95.7MB in the beginning and 72.7MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 16:58:40,871 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:58:40,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 721.77ms. Allocated memory is still 134.2MB. Free memory was 95.7MB in the beginning and 72.7MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 16:58:40,877 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 721.77ms. Allocated memory is still 134.2MB. Free memory was 95.7MB in the beginning and 72.7MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX --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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:58:43,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:58:43,279 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-08 16:58:43,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:58:43,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:58:43,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:58:43,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:58:43,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:58:43,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:58:43,331 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:58:43,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:58:43,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:58:43,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:58:43,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:58:43,333 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:58:43,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:58:43,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:58:43,334 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:58:43,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:58:43,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:58:43,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:58:43,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:58:43,340 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 16:58:43,340 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 16:58:43,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:58:43,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:58:43,341 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:58:43,341 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 16:58:43,341 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:58:43,341 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 16:58:43,342 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:58:43,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:58:43,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:58:43,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:58:43,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:58:43,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:58:43,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:58:43,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:58:43,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:58:43,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:58:43,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:58:43,346 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 16:58:43,346 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 16:58:43,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:58:43,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:58:43,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:58:43,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:58:43,347 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2024-11-08 16:58:43,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:58:43,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:58:43,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:58:43,776 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:58:43,776 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:58:43,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-1.i Unable to find full path for "g++" [2024-11-08 16:58:45,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:58:46,190 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:58:46,190 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-1.i [2024-11-08 16:58:46,206 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/data/32e53a02d/6196f010d0334e65969854f3448ab1f2/FLAGab16ea3a0 [2024-11-08 16:58:46,220 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/data/32e53a02d/6196f010d0334e65969854f3448ab1f2 [2024-11-08 16:58:46,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:58:46,224 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:58:46,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:58:46,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:58:46,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:58:46,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:58:46" (1/1) ... [2024-11-08 16:58:46,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730064da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:46, skipping insertion in model container [2024-11-08 16:58:46,234 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:58:46" (1/1) ... [2024-11-08 16:58:46,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:58:46,835 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,868 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,872 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,876 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,891 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,952 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,957 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,962 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,964 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,971 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,972 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,973 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,974 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,980 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:46,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:58:47,000 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-08 16:58:47,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:58:47,051 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,067 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,069 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,072 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,077 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,099 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,099 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,102 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,102 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,105 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,106 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,107 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,108 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,115 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:58:47,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:58:47,126 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:58:47,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:58:47,256 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:58:47,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47 WrapperNode [2024-11-08 16:58:47,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:58:47,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:58:47,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:58:47,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:58:47,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,375 INFO L138 Inliner]: procedures = 180, calls = 274, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 996 [2024-11-08 16:58:47,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:58:47,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:58:47,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:58:47,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:58:47,390 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,401 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,489 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 218, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-08 16:58:47,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,573 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:58:47,574 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:58:47,574 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:58:47,574 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:58:47,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (1/1) ... [2024-11-08 16:58:47,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:58:47,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:47,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:58:47,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:58:47,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 16:58:47,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 16:58:47,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 16:58:47,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 16:58:47,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 16:58:47,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 16:58:47,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 16:58:47,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 16:58:47,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 16:58:47,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 16:58:47,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-08 16:58:47,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 16:58:47,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 16:58:47,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-08 16:58:47,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:58:47,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:58:47,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 16:58:47,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 16:58:47,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 16:58:47,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:58:47,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 16:58:47,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 16:58:47,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 16:58:47,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 16:58:47,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 16:58:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 16:58:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:58:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 16:58:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 16:58:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 16:58:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:58:47,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:58:47,964 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:58:47,968 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:58:56,667 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-11-08 16:58:56,667 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:58:56,690 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:58:56,690 INFO L316 CfgBuilder]: Removed 58 assume(true) statements. [2024-11-08 16:58:56,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:58:56 BoogieIcfgContainer [2024-11-08 16:58:56,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:58:56,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:58:56,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:58:56,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:58:56,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:58:46" (1/3) ... [2024-11-08 16:58:56,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cae1333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:58:56, skipping insertion in model container [2024-11-08 16:58:56,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:58:47" (2/3) ... [2024-11-08 16:58:56,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cae1333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:58:56, skipping insertion in model container [2024-11-08 16:58:56,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:58:56" (3/3) ... [2024-11-08 16:58:56,700 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test3-1.i [2024-11-08 16:58:56,718 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:58:56,718 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:58:56,767 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:58:56,774 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;@57f538bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:58:56,774 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:58:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 196 states have (on average 1.6479591836734695) internal successors, (323), 199 states have internal predecessors, (323), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 16:58:56,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 16:58:56,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:56,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 16:58:56,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:58:56,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:56,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1665173, now seen corresponding path program 1 times [2024-11-08 16:58:56,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:58:56,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117369508] [2024-11-08 16:58:56,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:56,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:56,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:56,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:56,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:58:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:57,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:58:57,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:57,146 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-08 16:58:57,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:57,147 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:57,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:58:57,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117369508] [2024-11-08 16:58:57,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117369508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:57,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:57,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:58:57,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994660769] [2024-11-08 16:58:57,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:57,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:57,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:58:57,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:57,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 16:58:57,188 INFO L87 Difference]: Start difference. First operand has 206 states, 196 states have (on average 1.6479591836734695) internal successors, (323), 199 states have internal predecessors, (323), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:01,473 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 [] [2024-11-08 16:59:02,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:02,082 INFO L93 Difference]: Finished difference Result 303 states and 402 transitions. [2024-11-08 16:59:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:02,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-08 16:59:02,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:02,101 INFO L225 Difference]: With dead ends: 303 [2024-11-08 16:59:02,101 INFO L226 Difference]: Without dead ends: 300 [2024-11-08 16:59:02,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 16:59:02,105 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 126 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 403 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:02,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 507 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 1 Unknown, 403 Unchecked, 4.8s Time] [2024-11-08 16:59:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-08 16:59:02,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 203. [2024-11-08 16:59:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 194 states have (on average 1.3144329896907216) internal successors, (255), 196 states have internal predecessors, (255), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 16:59:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 265 transitions. [2024-11-08 16:59:02,162 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 265 transitions. Word has length 4 [2024-11-08 16:59:02,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:02,162 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 265 transitions. [2024-11-08 16:59:02,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:02,163 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 265 transitions. [2024-11-08 16:59:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 16:59:02,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:02,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:02,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:59:02,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:02,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:02,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:02,366 INFO L85 PathProgramCache]: Analyzing trace with hash 889980029, now seen corresponding path program 1 times [2024-11-08 16:59:02,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:02,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554316525] [2024-11-08 16:59:02,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:02,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:02,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:02,369 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:02,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:59:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:02,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:59:02,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:02,839 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-08 16:59:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:02,840 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:02,840 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:02,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554316525] [2024-11-08 16:59:02,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554316525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:02,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:02,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:59:02,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818553257] [2024-11-08 16:59:02,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:02,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:02,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:02,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:02,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 16:59:02,845 INFO L87 Difference]: Start difference. First operand 203 states and 265 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-08 16:59:07,112 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 [] [2024-11-08 16:59:07,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:07,587 INFO L93 Difference]: Finished difference Result 301 states and 398 transitions. [2024-11-08 16:59:07,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:07,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-11-08 16:59:07,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:07,595 INFO L225 Difference]: With dead ends: 301 [2024-11-08 16:59:07,595 INFO L226 Difference]: Without dead ends: 299 [2024-11-08 16:59:07,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 16:59:07,597 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 118 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 397 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:07,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 503 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 1 Unknown, 397 Unchecked, 4.7s Time] [2024-11-08 16:59:07,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-08 16:59:07,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 275. [2024-11-08 16:59:07,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 264 states have (on average 1.321969696969697) internal successors, (349), 266 states have internal predecessors, (349), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:59:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 363 transitions. [2024-11-08 16:59:07,615 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 363 transitions. Word has length 12 [2024-11-08 16:59:07,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:07,616 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 363 transitions. [2024-11-08 16:59:07,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-08 16:59:07,616 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 363 transitions. [2024-11-08 16:59:07,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 16:59:07,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:07,617 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:07,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 16:59:07,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:07,822 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:07,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:07,823 INFO L85 PathProgramCache]: Analyzing trace with hash 720512986, now seen corresponding path program 1 times [2024-11-08 16:59:07,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:07,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1479372711] [2024-11-08 16:59:07,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:07,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:07,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:07,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:07,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:59:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:08,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:59:08,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:08,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:08,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:08,192 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:08,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479372711] [2024-11-08 16:59:08,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479372711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:08,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:08,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:59:08,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359304500] [2024-11-08 16:59:08,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:08,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:08,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:08,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:08,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:08,198 INFO L87 Difference]: Start difference. First operand 275 states and 363 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:12,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:59:15,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:59:15,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:15,932 INFO L93 Difference]: Finished difference Result 365 states and 480 transitions. [2024-11-08 16:59:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:15,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-08 16:59:15,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:15,936 INFO L225 Difference]: With dead ends: 365 [2024-11-08 16:59:15,936 INFO L226 Difference]: Without dead ends: 363 [2024-11-08 16:59:15,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:15,937 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 140 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:15,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 712 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2024-11-08 16:59:15,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-08 16:59:15,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 362. [2024-11-08 16:59:15,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 351 states have (on average 1.3190883190883191) internal successors, (463), 354 states have internal predecessors, (463), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:59:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 477 transitions. [2024-11-08 16:59:15,958 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 477 transitions. Word has length 16 [2024-11-08 16:59:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:15,958 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 477 transitions. [2024-11-08 16:59:15,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 477 transitions. [2024-11-08 16:59:15,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 16:59:15,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:15,960 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:15,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 16:59:16,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:16,165 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:16,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:16,166 INFO L85 PathProgramCache]: Analyzing trace with hash -364796512, now seen corresponding path program 1 times [2024-11-08 16:59:16,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:16,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [148007794] [2024-11-08 16:59:16,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:16,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:16,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:16,169 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:16,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:59:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:16,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:59:16,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:16,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:16,456 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:16,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148007794] [2024-11-08 16:59:16,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148007794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:16,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:16,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:59:16,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744269146] [2024-11-08 16:59:16,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:16,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:59:16,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:59:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:59:16,459 INFO L87 Difference]: Start difference. First operand 362 states and 477 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:16,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:16,638 INFO L93 Difference]: Finished difference Result 422 states and 537 transitions. [2024-11-08 16:59:16,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:59:16,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-08 16:59:16,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:16,640 INFO L225 Difference]: With dead ends: 422 [2024-11-08 16:59:16,641 INFO L226 Difference]: Without dead ends: 422 [2024-11-08 16:59:16,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:59:16,642 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 8 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 475 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 [2024-11-08 16:59:16,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 475 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:59:16,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-08 16:59:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2024-11-08 16:59:16,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 411 states have (on average 1.2725060827250607) internal successors, (523), 414 states have internal predecessors, (523), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:59:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 537 transitions. [2024-11-08 16:59:16,671 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 537 transitions. Word has length 51 [2024-11-08 16:59:16,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:16,672 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 537 transitions. [2024-11-08 16:59:16,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 537 transitions. [2024-11-08 16:59:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 16:59:16,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:16,674 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:16,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 16:59:16,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:16,875 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:16,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:16,876 INFO L85 PathProgramCache]: Analyzing trace with hash -639556126, now seen corresponding path program 1 times [2024-11-08 16:59:16,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:16,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [748841984] [2024-11-08 16:59:16,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:16,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:16,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:16,879 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:16,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:59:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:17,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:59:17,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:17,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:17,173 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:17,173 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:17,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748841984] [2024-11-08 16:59:17,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748841984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:17,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:17,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:59:17,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087144185] [2024-11-08 16:59:17,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:17,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:17,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:17,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:17,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:17,177 INFO L87 Difference]: Start difference. First operand 422 states and 537 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:17,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:17,402 INFO L93 Difference]: Finished difference Result 368 states and 447 transitions. [2024-11-08 16:59:17,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:59:17,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-08 16:59:17,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:17,405 INFO L225 Difference]: With dead ends: 368 [2024-11-08 16:59:17,406 INFO L226 Difference]: Without dead ends: 368 [2024-11-08 16:59:17,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:59:17,407 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 32 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 676 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 [2024-11-08 16:59:17,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 676 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:59:17,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-08 16:59:17,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-08 16:59:17,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 357 states have (on average 1.2128851540616246) internal successors, (433), 360 states have internal predecessors, (433), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:59:17,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 447 transitions. [2024-11-08 16:59:17,435 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 447 transitions. Word has length 51 [2024-11-08 16:59:17,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:17,435 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 447 transitions. [2024-11-08 16:59:17,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:17,436 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 447 transitions. [2024-11-08 16:59:17,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 16:59:17,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:17,437 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:17,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:59:17,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:17,638 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:17,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:17,639 INFO L85 PathProgramCache]: Analyzing trace with hash -162339820, now seen corresponding path program 1 times [2024-11-08 16:59:17,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:17,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1046474454] [2024-11-08 16:59:17,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:17,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:17,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:17,642 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:17,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:59:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:17,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 16:59:17,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:17,899 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 16:59:17,900 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 16:59:17,901 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 16:59:17,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-08 16:59:18,032 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:59:18,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-08 16:59:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:18,145 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:18,146 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:18,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046474454] [2024-11-08 16:59:18,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046474454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:18,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:18,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:59:18,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665520398] [2024-11-08 16:59:18,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:18,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:59:18,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:59:18,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:59:18,149 INFO L87 Difference]: Start difference. First operand 368 states and 447 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:18,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:18,952 INFO L93 Difference]: Finished difference Result 370 states and 459 transitions. [2024-11-08 16:59:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:59:18,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-08 16:59:18,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:18,955 INFO L225 Difference]: With dead ends: 370 [2024-11-08 16:59:18,955 INFO L226 Difference]: Without dead ends: 367 [2024-11-08 16:59:18,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:59:18,957 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 112 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:18,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1041 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:59:18,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-08 16:59:18,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 319. [2024-11-08 16:59:18,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 309 states have (on average 1.2362459546925566) internal successors, (382), 312 states have internal predecessors, (382), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 16:59:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 394 transitions. [2024-11-08 16:59:18,969 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 394 transitions. Word has length 51 [2024-11-08 16:59:18,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:18,970 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 394 transitions. [2024-11-08 16:59:18,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:18,970 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 394 transitions. [2024-11-08 16:59:18,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 16:59:18,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:18,973 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:18,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 16:59:19,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:19,174 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:19,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:19,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1117944903, now seen corresponding path program 1 times [2024-11-08 16:59:19,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:19,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131645784] [2024-11-08 16:59:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:19,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:19,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:19,180 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:19,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:59:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:19,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:59:19,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:19,738 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:59:19,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:19,742 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:19,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131645784] [2024-11-08 16:59:19,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131645784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:19,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:19,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:59:19,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350282816] [2024-11-08 16:59:19,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:19,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:59:19,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:19,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:59:19,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:59:19,747 INFO L87 Difference]: Start difference. First operand 319 states and 394 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:59:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:20,019 INFO L93 Difference]: Finished difference Result 359 states and 434 transitions. [2024-11-08 16:59:20,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:59:20,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2024-11-08 16:59:20,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:20,024 INFO L225 Difference]: With dead ends: 359 [2024-11-08 16:59:20,025 INFO L226 Difference]: Without dead ends: 359 [2024-11-08 16:59:20,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:59:20,026 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 8 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:20,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 449 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:59:20,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-08 16:59:20,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-08 16:59:20,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 349 states have (on average 1.2091690544412608) internal successors, (422), 352 states have internal predecessors, (422), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 16:59:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 434 transitions. [2024-11-08 16:59:20,064 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 434 transitions. Word has length 83 [2024-11-08 16:59:20,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:20,064 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 434 transitions. [2024-11-08 16:59:20,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:59:20,065 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 434 transitions. [2024-11-08 16:59:20,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 16:59:20,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:20,071 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:20,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 16:59:20,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:20,272 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:20,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:20,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1790236983, now seen corresponding path program 1 times [2024-11-08 16:59:20,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:20,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1265126049] [2024-11-08 16:59:20,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:20,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:20,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:20,278 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:20,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 16:59:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:20,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:59:20,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:59:21,064 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:21,065 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:21,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265126049] [2024-11-08 16:59:21,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265126049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:21,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:21,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:59:21,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80405998] [2024-11-08 16:59:21,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:21,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:21,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:21,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:21,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:21,067 INFO L87 Difference]: Start difference. First operand 359 states and 434 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:59:25,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:59:29,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:59:31,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:59:32,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:32,693 INFO L93 Difference]: Finished difference Result 453 states and 547 transitions. [2024-11-08 16:59:32,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:32,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2024-11-08 16:59:32,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:32,697 INFO L225 Difference]: With dead ends: 453 [2024-11-08 16:59:32,697 INFO L226 Difference]: Without dead ends: 453 [2024-11-08 16:59:32,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:59:32,703 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 467 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:32,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 448 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 85 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2024-11-08 16:59:32,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-08 16:59:32,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 450. [2024-11-08 16:59:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 439 states have (on average 1.20501138952164) internal successors, (529), 443 states have internal predecessors, (529), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:59:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 543 transitions. [2024-11-08 16:59:32,734 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 543 transitions. Word has length 83 [2024-11-08 16:59:32,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:32,735 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 543 transitions. [2024-11-08 16:59:32,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:59:32,736 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 543 transitions. [2024-11-08 16:59:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 16:59:32,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:32,738 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:32,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 16:59:32,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:32,939 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:32,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:32,939 INFO L85 PathProgramCache]: Analyzing trace with hash 38670228, now seen corresponding path program 1 times [2024-11-08 16:59:32,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:32,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459004797] [2024-11-08 16:59:32,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:32,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:32,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:32,941 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:32,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 16:59:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:59:33,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:59:33,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:33,461 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:33,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459004797] [2024-11-08 16:59:33,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459004797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:33,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:33,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:59:33,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235022212] [2024-11-08 16:59:33,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:33,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:33,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:33,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:33,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:33,463 INFO L87 Difference]: Start difference. First operand 450 states and 543 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (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) [2024-11-08 16:59:33,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:33,608 INFO L93 Difference]: Finished difference Result 414 states and 483 transitions. [2024-11-08 16:59:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:59:33,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (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 87 [2024-11-08 16:59:33,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:33,611 INFO L225 Difference]: With dead ends: 414 [2024-11-08 16:59:33,611 INFO L226 Difference]: Without dead ends: 414 [2024-11-08 16:59:33,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:59:33,612 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 32 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:33,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 637 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:59:33,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-08 16:59:33,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2024-11-08 16:59:33,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 403 states have (on average 1.163771712158809) internal successors, (469), 407 states have internal predecessors, (469), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:59:33,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 483 transitions. [2024-11-08 16:59:33,623 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 483 transitions. Word has length 87 [2024-11-08 16:59:33,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:33,623 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 483 transitions. [2024-11-08 16:59:33,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (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) [2024-11-08 16:59:33,624 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 483 transitions. [2024-11-08 16:59:33,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 16:59:33,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:33,625 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:33,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 16:59:33,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:33,826 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:33,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:33,826 INFO L85 PathProgramCache]: Analyzing trace with hash -623007582, now seen corresponding path program 1 times [2024-11-08 16:59:33,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:33,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327629413] [2024-11-08 16:59:33,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:33,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:33,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:33,828 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:33,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 16:59:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:34,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:59:34,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:34,357 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:59:34,358 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:34,358 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:34,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327629413] [2024-11-08 16:59:34,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327629413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:34,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:34,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:59:34,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543583111] [2024-11-08 16:59:34,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:34,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:34,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:34,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:34,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:34,360 INFO L87 Difference]: Start difference. First operand 414 states and 483 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:59:34,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:34,412 INFO L93 Difference]: Finished difference Result 417 states and 487 transitions. [2024-11-08 16:59:34,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:34,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-08 16:59:34,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:34,416 INFO L225 Difference]: With dead ends: 417 [2024-11-08 16:59:34,416 INFO L226 Difference]: Without dead ends: 417 [2024-11-08 16:59:34,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:34,417 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 0 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:34,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 704 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:59:34,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-08 16:59:34,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-11-08 16:59:34,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 405 states have (on average 1.165432098765432) internal successors, (472), 410 states have internal predecessors, (472), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-08 16:59:34,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 487 transitions. [2024-11-08 16:59:34,432 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 487 transitions. Word has length 87 [2024-11-08 16:59:34,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:34,432 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 487 transitions. [2024-11-08 16:59:34,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:59:34,432 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 487 transitions. [2024-11-08 16:59:34,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 16:59:34,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:34,434 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:34,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 16:59:34,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:34,635 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:34,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:34,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1237687872, now seen corresponding path program 1 times [2024-11-08 16:59:34,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:34,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446099277] [2024-11-08 16:59:34,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:34,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:34,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:34,653 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:34,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 16:59:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:35,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:59:35,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:35,275 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:59:35,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:59:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:59:35,444 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:35,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446099277] [2024-11-08 16:59:35,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446099277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:59:35,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:59:35,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-08 16:59:35,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4925116] [2024-11-08 16:59:35,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 16:59:35,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:59:35,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:35,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:59:35,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:59:35,447 INFO L87 Difference]: Start difference. First operand 417 states and 487 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 16:59:35,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:35,706 INFO L93 Difference]: Finished difference Result 428 states and 504 transitions. [2024-11-08 16:59:35,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:59:35,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 89 [2024-11-08 16:59:35,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:35,709 INFO L225 Difference]: With dead ends: 428 [2024-11-08 16:59:35,709 INFO L226 Difference]: Without dead ends: 428 [2024-11-08 16:59:35,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:59:35,710 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 5 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:35,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1166 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:59:35,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-08 16:59:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2024-11-08 16:59:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 413 states have (on average 1.1767554479418887) internal successors, (486), 418 states have internal predecessors, (486), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-08 16:59:35,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 502 transitions. [2024-11-08 16:59:35,722 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 502 transitions. Word has length 89 [2024-11-08 16:59:35,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:35,722 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 502 transitions. [2024-11-08 16:59:35,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 16:59:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 502 transitions. [2024-11-08 16:59:35,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 16:59:35,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:35,724 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:35,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 16:59:35,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:35,925 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:35,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:35,925 INFO L85 PathProgramCache]: Analyzing trace with hash -612949982, now seen corresponding path program 2 times [2024-11-08 16:59:35,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:35,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796298269] [2024-11-08 16:59:35,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:59:35,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:35,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:35,928 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:35,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 16:59:36,550 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 16:59:36,550 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:59:36,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 16:59:36,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:37,197 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 16:59:37,198 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 16:59:37,199 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 16:59:37,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-08 16:59:37,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:59:37,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-08 16:59:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 16:59:37,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:37,362 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:37,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796298269] [2024-11-08 16:59:37,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796298269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:37,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:37,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:59:37,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025158537] [2024-11-08 16:59:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:37,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:59:37,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:59:37,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:37,364 INFO L87 Difference]: Start difference. First operand 426 states and 502 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:59:37,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:37,791 INFO L93 Difference]: Finished difference Result 537 states and 635 transitions. [2024-11-08 16:59:37,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:59:37,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2024-11-08 16:59:37,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:37,795 INFO L225 Difference]: With dead ends: 537 [2024-11-08 16:59:37,795 INFO L226 Difference]: Without dead ends: 537 [2024-11-08 16:59:37,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:59:37,796 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 594 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:37,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 645 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:59:37,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-08 16:59:37,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 428. [2024-11-08 16:59:37,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 415 states have (on average 1.1759036144578314) internal successors, (488), 420 states have internal predecessors, (488), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-08 16:59:37,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 504 transitions. [2024-11-08 16:59:37,812 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 504 transitions. Word has length 93 [2024-11-08 16:59:37,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:37,812 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 504 transitions. [2024-11-08 16:59:37,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:59:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 504 transitions. [2024-11-08 16:59:37,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 16:59:37,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:37,815 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:37,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 16:59:38,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:38,016 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:38,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:38,016 INFO L85 PathProgramCache]: Analyzing trace with hash 261621581, now seen corresponding path program 1 times [2024-11-08 16:59:38,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:38,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341473224] [2024-11-08 16:59:38,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:38,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:38,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:38,020 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:38,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 16:59:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:38,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:59:38,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 16:59:38,734 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:59:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 16:59:38,951 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:38,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341473224] [2024-11-08 16:59:38,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341473224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:59:38,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:59:38,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-08 16:59:38,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715350125] [2024-11-08 16:59:38,952 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 16:59:38,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:59:38,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:38,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:59:38,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:59:38,954 INFO L87 Difference]: Start difference. First operand 428 states and 504 transitions. Second operand has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 16:59:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:39,369 INFO L93 Difference]: Finished difference Result 436 states and 514 transitions. [2024-11-08 16:59:39,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:59:39,370 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 136 [2024-11-08 16:59:39,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:39,372 INFO L225 Difference]: With dead ends: 436 [2024-11-08 16:59:39,372 INFO L226 Difference]: Without dead ends: 434 [2024-11-08 16:59:39,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:59:39,373 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 5 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:39,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1636 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:59:39,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-08 16:59:39,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 432. [2024-11-08 16:59:39,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 419 states have (on average 1.1789976133651552) internal successors, (494), 424 states have internal predecessors, (494), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-08 16:59:39,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 509 transitions. [2024-11-08 16:59:39,385 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 509 transitions. Word has length 136 [2024-11-08 16:59:39,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:39,385 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 509 transitions. [2024-11-08 16:59:39,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 16:59:39,386 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 509 transitions. [2024-11-08 16:59:39,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 16:59:39,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:39,388 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:39,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-08 16:59:39,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:39,588 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:39,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:39,589 INFO L85 PathProgramCache]: Analyzing trace with hash -949008563, now seen corresponding path program 2 times [2024-11-08 16:59:39,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:39,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876657538] [2024-11-08 16:59:39,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:59:39,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:39,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:39,592 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:39,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 16:59:40,363 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 16:59:40,364 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:59:40,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 16:59:40,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 16:59:40,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:59:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 16:59:40,995 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:59:40,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876657538] [2024-11-08 16:59:40,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876657538] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:59:40,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:59:40,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-08 16:59:40,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502811775] [2024-11-08 16:59:40,996 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 16:59:40,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:59:40,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:40,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:59:40,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:59:40,998 INFO L87 Difference]: Start difference. First operand 432 states and 509 transitions. Second operand has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 16:59:41,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:41,727 INFO L93 Difference]: Finished difference Result 444 states and 525 transitions. [2024-11-08 16:59:41,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 16:59:41,728 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 140 [2024-11-08 16:59:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:41,730 INFO L225 Difference]: With dead ends: 444 [2024-11-08 16:59:41,730 INFO L226 Difference]: Without dead ends: 440 [2024-11-08 16:59:41,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-08 16:59:41,731 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 8 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:41,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1408 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:59:41,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-08 16:59:41,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 438. [2024-11-08 16:59:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 425 states have (on average 1.1858823529411764) internal successors, (504), 430 states have internal predecessors, (504), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-08 16:59:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 519 transitions. [2024-11-08 16:59:41,742 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 519 transitions. Word has length 140 [2024-11-08 16:59:41,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:41,742 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 519 transitions. [2024-11-08 16:59:41,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 16:59:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 519 transitions. [2024-11-08 16:59:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 16:59:41,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:41,745 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:41,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-08 16:59:41,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:41,963 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 16:59:41,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:41,964 INFO L85 PathProgramCache]: Analyzing trace with hash 222405645, now seen corresponding path program 3 times [2024-11-08 16:59:41,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:41,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345048748] [2024-11-08 16:59:41,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 16:59:41,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:41,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:41,965 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:41,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b309e7a9-8e23-471d-95db-e815ae49035e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process