./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 30e01a73 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_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ --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 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:33:28,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:33:29,101 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-23 21:33:29,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:33:29,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:33:29,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:33:29,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:33:29,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:33:29,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:33:29,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:33:29,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:33:29,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:33:29,177 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:33:29,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:33:29,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:33:29,180 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:33:29,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:33:29,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:33:29,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:33:29,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:33:29,183 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:33:29,183 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:33:29,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:33:29,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:33:29,185 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:33:29,185 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:33:29,185 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:33:29,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:33:29,186 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:33:29,187 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:33:29,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:33:29,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:33:29,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:33:29,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:33:29,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:33:29,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:33:29,190 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:33:29,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:33:29,190 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:33:29,191 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:33:29,191 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:33:29,191 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:33:29,192 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_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 [2023-11-23 21:33:29,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:33:29,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:33:29,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:33:29,594 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:33:29,595 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:33:29,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2023-11-23 21:33:32,765 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:33:33,146 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:33:33,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2023-11-23 21:33:33,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/data/337d21578/10fa7c08f77e4f409515b462f6721718/FLAGb96e3e3f9 [2023-11-23 21:33:33,195 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/data/337d21578/10fa7c08f77e4f409515b462f6721718 [2023-11-23 21:33:33,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:33:33,199 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:33:33,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:33:33,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:33:33,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:33:33,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:33:33" (1/1) ... [2023-11-23 21:33:33,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@766d385e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:33, skipping insertion in model container [2023-11-23 21:33:33,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:33:33" (1/1) ... [2023-11-23 21:33:33,275 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:33:33,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:33:33,890 ERROR L324 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) [2023-11-23 21:33:33,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3220814a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:33, skipping insertion in model container [2023-11-23 21:33:33,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:33:33,892 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 21:33:33,895 INFO L158 Benchmark]: Toolchain (without parser) took 694.11ms. Allocated memory is still 159.4MB. Free memory was 126.5MB in the beginning and 107.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:33:33,896 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 159.4MB. Free memory was 127.9MB in the beginning and 127.8MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:33:33,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.40ms. Allocated memory is still 159.4MB. Free memory was 126.5MB in the beginning and 107.4MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:33:33,899 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 159.4MB. Free memory was 127.9MB in the beginning and 127.8MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.40ms. Allocated memory is still 159.4MB. Free memory was 126.5MB in the beginning and 107.4MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 716]: 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_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ --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 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:33:36,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:33:36,457 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-23 21:33:36,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:33:36,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:33:36,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:33:36,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:33:36,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:33:36,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:33:36,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:33:36,496 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:33:36,496 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:33:36,497 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:33:36,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:33:36,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:33:36,499 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:33:36,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:33:36,499 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:33:36,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:33:36,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:33:36,501 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:33:36,502 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:33:36,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:33:36,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:33:36,503 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:33:36,503 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:33:36,504 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:33:36,504 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:33:36,504 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:33:36,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:33:36,505 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:33:36,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:33:36,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:33:36,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:33:36,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:33:36,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:33:36,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:33:36,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:33:36,508 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 21:33:36,508 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:33:36,508 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:33:36,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:33:36,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:33:36,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:33:36,509 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 21:33:36,509 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_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 [2023-11-23 21:33:36,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:33:36,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:33:36,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:33:36,903 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:33:36,904 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:33:36,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2023-11-23 21:33:40,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:33:40,497 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:33:40,498 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2023-11-23 21:33:40,525 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/data/82974bc18/0548bd574fe14dd6a2a9fecd28266ef8/FLAG895e049fb [2023-11-23 21:33:40,539 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/data/82974bc18/0548bd574fe14dd6a2a9fecd28266ef8 [2023-11-23 21:33:40,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:33:40,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:33:40,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:33:40,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:33:40,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:33:40,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:33:40" (1/1) ... [2023-11-23 21:33:40,556 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ebab5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:40, skipping insertion in model container [2023-11-23 21:33:40,556 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:33:40" (1/1) ... [2023-11-23 21:33:40,660 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:33:41,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:33:41,427 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 21:33:41,446 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:33:41,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:33:41,599 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:33:41,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:33:41,796 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:33:41,804 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:33:41,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41 WrapperNode [2023-11-23 21:33:41,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:33:41,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:33:41,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:33:41,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:33:41,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:41,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:41,929 INFO L138 Inliner]: procedures = 179, calls = 280, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1002 [2023-11-23 21:33:41,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:33:41,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:33:41,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:33:41,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:33:41,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:41,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:41,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:41,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:42,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:42,077 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:42,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:42,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:42,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:33:42,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:33:42,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:33:42,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:33:42,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (1/1) ... [2023-11-23 21:33:42,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:33:42,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:33:42,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:33:42,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:33:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-23 21:33:42,227 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-23 21:33:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 21:33:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 21:33:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:33:42,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:33:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:33:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:33:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:33:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:33:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:33:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:33:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:33:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 21:33:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:33:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:33:42,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:33:42,473 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:33:42,475 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:33:49,455 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:33:49,515 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:33:49,515 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-23 21:33:49,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:33:49 BoogieIcfgContainer [2023-11-23 21:33:49,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:33:49,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:33:49,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:33:49,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:33:49,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:33:40" (1/3) ... [2023-11-23 21:33:49,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b71e57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:33:49, skipping insertion in model container [2023-11-23 21:33:49,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:41" (2/3) ... [2023-11-23 21:33:49,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b71e57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:33:49, skipping insertion in model container [2023-11-23 21:33:49,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:33:49" (3/3) ... [2023-11-23 21:33:49,531 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test7-1.i [2023-11-23 21:33:49,552 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:33:49,552 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 21:33:49,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:33:49,620 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@74782315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:33:49,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 21:33:49,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 184 states have (on average 1.6793478260869565) internal successors, (309), 187 states have internal predecessors, (309), 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) [2023-11-23 21:33:49,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 21:33:49,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:49,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:33:49,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:33:49,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:49,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1790709612, now seen corresponding path program 1 times [2023-11-23 21:33:49,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:33:49,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900481176] [2023-11-23 21:33:49,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:49,655 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:33:49,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:33:49,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:33:49,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:33:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:49,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:33:49,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:33:49,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:33:49,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:33:49,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:33:49,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900481176] [2023-11-23 21:33:49,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900481176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:49,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:49,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:33:49,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842204325] [2023-11-23 21:33:49,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:49,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:33:49,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:33:50,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:33:50,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:33:50,009 INFO L87 Difference]: Start difference. First operand has 194 states, 184 states have (on average 1.6793478260869565) internal successors, (309), 187 states have internal predecessors, (309), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-23 21:33:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:50,092 INFO L93 Difference]: Finished difference Result 191 states and 246 transitions. [2023-11-23 21:33:50,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:33:50,097 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2023-11-23 21:33:50,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:50,112 INFO L225 Difference]: With dead ends: 191 [2023-11-23 21:33:50,113 INFO L226 Difference]: Without dead ends: 190 [2023-11-23 21:33:50,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:33:50,120 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:50,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:33:50,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-23 21:33:50,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-11-23 21:33:50,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 182 states have (on average 1.3021978021978022) internal successors, (237), 184 states have internal predecessors, (237), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:33:50,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 245 transitions. [2023-11-23 21:33:50,199 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 245 transitions. Word has length 8 [2023-11-23 21:33:50,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:50,200 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 245 transitions. [2023-11-23 21:33:50,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-23 21:33:50,201 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 245 transitions. [2023-11-23 21:33:50,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 21:33:50,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:50,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:33:50,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:33:50,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:33:50,405 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:33:50,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:50,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1125738730, now seen corresponding path program 1 times [2023-11-23 21:33:50,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:33:50,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86046392] [2023-11-23 21:33:50,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:50,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:33:50,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:33:50,408 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:33:50,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:33:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:50,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:33:50,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:33:50,677 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:33:50,678 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:33:50,679 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:33:50,690 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 [2023-11-23 21:33:50,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:33:50,810 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 [2023-11-23 21:33:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:33:50,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:33:50,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:33:50,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86046392] [2023-11-23 21:33:50,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86046392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:50,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:50,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:33:50,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384717629] [2023-11-23 21:33:50,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:50,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:33:50,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:33:50,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:33:50,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:33:50,860 INFO L87 Difference]: Start difference. First operand 190 states and 245 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:33:56,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:33:58,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:58,756 INFO L93 Difference]: Finished difference Result 312 states and 406 transitions. [2023-11-23 21:33:58,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:33:58,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-23 21:33:58,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:58,763 INFO L225 Difference]: With dead ends: 312 [2023-11-23 21:33:58,763 INFO L226 Difference]: Without dead ends: 312 [2023-11-23 21:33:58,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:33:58,765 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 151 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:58,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 590 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2023-11-23 21:33:58,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-23 21:33:58,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 192. [2023-11-23 21:33:58,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 184 states have (on average 1.298913043478261) internal successors, (239), 186 states have internal predecessors, (239), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:33:58,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 247 transitions. [2023-11-23 21:33:58,783 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 247 transitions. Word has length 10 [2023-11-23 21:33:58,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:58,784 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 247 transitions. [2023-11-23 21:33:58,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:33:58,784 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 247 transitions. [2023-11-23 21:33:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-23 21:33:58,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:58,788 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:33:58,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:33:58,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:33:58,992 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:33:58,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:58,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1539321756, now seen corresponding path program 1 times [2023-11-23 21:33:58,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:33:58,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476435810] [2023-11-23 21:33:58,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:58,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:33:58,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:33:58,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:33:58,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:33:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:59,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:33:59,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:33:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:33:59,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:33:59,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:33:59,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476435810] [2023-11-23 21:33:59,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476435810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:59,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:59,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:33:59,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871133511] [2023-11-23 21:33:59,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:59,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:33:59,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:33:59,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:33:59,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:33:59,539 INFO L87 Difference]: Start difference. First operand 192 states and 247 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2023-11-23 21:33:59,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:59,751 INFO L93 Difference]: Finished difference Result 196 states and 243 transitions. [2023-11-23 21:33:59,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:33:59,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2023-11-23 21:33:59,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:59,754 INFO L225 Difference]: With dead ends: 196 [2023-11-23 21:33:59,754 INFO L226 Difference]: Without dead ends: 196 [2023-11-23 21:33:59,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:33:59,758 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 36 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:59,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 618 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:33:59,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-23 21:33:59,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2023-11-23 21:33:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.2513368983957218) internal successors, (234), 189 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:33:59,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 242 transitions. [2023-11-23 21:33:59,782 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 242 transitions. Word has length 66 [2023-11-23 21:33:59,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:59,783 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 242 transitions. [2023-11-23 21:33:59,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2023-11-23 21:33:59,783 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 242 transitions. [2023-11-23 21:33:59,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-23 21:33:59,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:59,799 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:33:59,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-23 21:34:00,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:00,005 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:34:00,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:00,005 INFO L85 PathProgramCache]: Analyzing trace with hash -891917808, now seen corresponding path program 1 times [2023-11-23 21:34:00,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:34:00,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691840584] [2023-11-23 21:34:00,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:00,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:00,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:34:00,008 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:34:00,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 21:34:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:00,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:34:00,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:34:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:00,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:34:00,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:34:00,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691840584] [2023-11-23 21:34:00,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691840584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:00,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:00,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:00,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610877780] [2023-11-23 21:34:00,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:00,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:00,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:34:00,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:00,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:00,918 INFO L87 Difference]: Start difference. First operand 195 states and 242 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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) [2023-11-23 21:34:01,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:01,771 INFO L93 Difference]: Finished difference Result 311 states and 384 transitions. [2023-11-23 21:34:01,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:01,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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 66 [2023-11-23 21:34:01,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:01,774 INFO L225 Difference]: With dead ends: 311 [2023-11-23 21:34:01,774 INFO L226 Difference]: Without dead ends: 311 [2023-11-23 21:34:01,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:01,776 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 102 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:01,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 481 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:34:01,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-23 21:34:01,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 303. [2023-11-23 21:34:01,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 295 states have (on average 1.2474576271186442) internal successors, (368), 297 states have internal predecessors, (368), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:34:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 376 transitions. [2023-11-23 21:34:01,812 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 376 transitions. Word has length 66 [2023-11-23 21:34:01,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:01,812 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 376 transitions. [2023-11-23 21:34:01,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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) [2023-11-23 21:34:01,813 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 376 transitions. [2023-11-23 21:34:01,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:34:01,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:01,824 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:01,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:34:02,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:02,033 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:34:02,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:02,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1833383307, now seen corresponding path program 1 times [2023-11-23 21:34:02,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:34:02,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944159192] [2023-11-23 21:34:02,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:02,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:02,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:34:02,035 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:34:02,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 21:34:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:02,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:34:02,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:34:02,707 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:02,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:34:02,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:34:02,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944159192] [2023-11-23 21:34:02,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944159192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:02,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:02,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:34:02,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553060134] [2023-11-23 21:34:02,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:02,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:34:02,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:34:02,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:34:02,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:34:02,714 INFO L87 Difference]: Start difference. First operand 303 states and 376 transitions. Second operand has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:34:02,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:02,812 INFO L93 Difference]: Finished difference Result 305 states and 379 transitions. [2023-11-23 21:34:02,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:34:02,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 79 [2023-11-23 21:34:02,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:02,817 INFO L225 Difference]: With dead ends: 305 [2023-11-23 21:34:02,818 INFO L226 Difference]: Without dead ends: 305 [2023-11-23 21:34:02,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:02,819 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:02,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 686 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:34:02,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-23 21:34:02,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2023-11-23 21:34:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 296 states have (on average 1.25) internal successors, (370), 299 states have internal predecessors, (370), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 21:34:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 379 transitions. [2023-11-23 21:34:02,838 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 379 transitions. Word has length 79 [2023-11-23 21:34:02,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:02,838 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 379 transitions. [2023-11-23 21:34:02,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:34:02,839 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 379 transitions. [2023-11-23 21:34:02,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 21:34:02,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:02,841 INFO L195 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] [2023-11-23 21:34:02,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:34:03,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:03,052 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:34:03,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:03,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1411599707, now seen corresponding path program 1 times [2023-11-23 21:34:03,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:34:03,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145684155] [2023-11-23 21:34:03,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:03,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:03,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:34:03,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:34:03,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-23 21:34:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:03,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:34:03,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:34:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:34:03,837 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:34:03,981 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:34:03,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:34:03,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145684155] [2023-11-23 21:34:03,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145684155] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:34:03,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:34:03,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-23 21:34:03,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368408963] [2023-11-23 21:34:03,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:34:03,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:34:03,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:34:03,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:34:03,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:34:03,985 INFO L87 Difference]: Start difference. First operand 305 states and 379 transitions. Second operand has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:34:04,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:04,321 INFO L93 Difference]: Finished difference Result 314 states and 393 transitions. [2023-11-23 21:34:04,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 21:34:04,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 81 [2023-11-23 21:34:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:04,325 INFO L225 Difference]: With dead ends: 314 [2023-11-23 21:34:04,325 INFO L226 Difference]: Without dead ends: 314 [2023-11-23 21:34:04,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:34:04,327 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 6 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:04,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 912 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:34:04,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-23 21:34:04,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 313. [2023-11-23 21:34:04,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 303 states have (on average 1.2640264026402641) internal successors, (383), 306 states have internal predecessors, (383), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 21:34:04,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 392 transitions. [2023-11-23 21:34:04,341 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 392 transitions. Word has length 81 [2023-11-23 21:34:04,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:04,342 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 392 transitions. [2023-11-23 21:34:04,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:34:04,351 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 392 transitions. [2023-11-23 21:34:04,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:34:04,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:04,353 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-23 21:34:04,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-23 21:34:04,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:04,565 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:34:04,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:04,566 INFO L85 PathProgramCache]: Analyzing trace with hash 2109211307, now seen corresponding path program 2 times [2023-11-23 21:34:04,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:34:04,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500847310] [2023-11-23 21:34:04,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:34:04,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:04,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:34:04,568 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:34:04,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-23 21:34:04,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 21:34:04,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:34:04,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:34:04,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:34:04,988 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:34:04,988 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:34:04,991 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 33 treesize of output 31 [2023-11-23 21:34:05,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:34:05,055 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 62 treesize of output 22 [2023-11-23 21:34:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-23 21:34:05,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:34:05,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:34:05,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500847310] [2023-11-23 21:34:05,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500847310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:05,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:05,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:34:05,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951436280] [2023-11-23 21:34:05,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:05,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:34:05,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:34:05,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:34:05,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:34:05,103 INFO L87 Difference]: Start difference. First operand 313 states and 392 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2023-11-23 21:34:06,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:34:08,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:34:12,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:34:13,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:13,157 INFO L93 Difference]: Finished difference Result 401 states and 510 transitions. [2023-11-23 21:34:13,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:34:13,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 85 [2023-11-23 21:34:13,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:13,162 INFO L225 Difference]: With dead ends: 401 [2023-11-23 21:34:13,162 INFO L226 Difference]: Without dead ends: 401 [2023-11-23 21:34:13,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:13,163 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 100 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:13,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 594 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2023-11-23 21:34:13,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-23 21:34:13,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 315. [2023-11-23 21:34:13,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 305 states have (on average 1.2622950819672132) internal successors, (385), 308 states have internal predecessors, (385), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 21:34:13,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 394 transitions. [2023-11-23 21:34:13,180 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 394 transitions. Word has length 85 [2023-11-23 21:34:13,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:13,181 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 394 transitions. [2023-11-23 21:34:13,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2023-11-23 21:34:13,181 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 394 transitions. [2023-11-23 21:34:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-23 21:34:13,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:13,184 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-23 21:34:13,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-23 21:34:13,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:13,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:34:13,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:13,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1965577159, now seen corresponding path program 1 times [2023-11-23 21:34:13,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:34:13,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108593859] [2023-11-23 21:34:13,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:13,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:13,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:34:13,391 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:34:13,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-23 21:34:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:14,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:34:14,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:34:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:34:14,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:34:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:34:14,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:34:14,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108593859] [2023-11-23 21:34:14,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108593859] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:34:14,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:34:14,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-23 21:34:14,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617862128] [2023-11-23 21:34:14,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:34:14,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 21:34:14,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:34:14,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 21:34:14,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:34:14,876 INFO L87 Difference]: Start difference. First operand 315 states and 394 transitions. Second operand has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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) [2023-11-23 21:34:16,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:16,130 INFO L93 Difference]: Finished difference Result 330 states and 416 transitions. [2023-11-23 21:34:16,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-23 21:34:16,131 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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 122 [2023-11-23 21:34:16,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:16,135 INFO L225 Difference]: With dead ends: 330 [2023-11-23 21:34:16,135 INFO L226 Difference]: Without dead ends: 328 [2023-11-23 21:34:16,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-23 21:34:16,136 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 13 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:16,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1367 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:34:16,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-11-23 21:34:16,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 324. [2023-11-23 21:34:16,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 314 states have (on average 1.2643312101910829) internal successors, (397), 317 states have internal predecessors, (397), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 21:34:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 406 transitions. [2023-11-23 21:34:16,152 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 406 transitions. Word has length 122 [2023-11-23 21:34:16,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:16,153 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 406 transitions. [2023-11-23 21:34:16,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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) [2023-11-23 21:34:16,153 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 406 transitions. [2023-11-23 21:34:16,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:34:16,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:16,156 INFO L195 NwaCegarLoop]: trace histogram [15, 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] [2023-11-23 21:34:16,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:34:16,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:16,368 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:34:16,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:16,369 INFO L85 PathProgramCache]: Analyzing trace with hash -556752668, now seen corresponding path program 2 times [2023-11-23 21:34:16,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:34:16,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286636378] [2023-11-23 21:34:16,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:34:16,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:16,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:34:16,371 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:34:16,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-23 21:34:16,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 21:34:16,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:34:16,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:34:16,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:34:16,859 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-11-23 21:34:16,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:34:16,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:34:16,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286636378] [2023-11-23 21:34:16,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286636378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:16,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:16,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:34:16,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849971225] [2023-11-23 21:34:16,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:16,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:34:16,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:34:16,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:34:16,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:34:16,862 INFO L87 Difference]: Start difference. First operand 324 states and 406 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2023-11-23 21:34:17,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:17,021 INFO L93 Difference]: Finished difference Result 332 states and 398 transitions. [2023-11-23 21:34:17,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:34:17,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 131 [2023-11-23 21:34:17,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:17,025 INFO L225 Difference]: With dead ends: 332 [2023-11-23 21:34:17,025 INFO L226 Difference]: Without dead ends: 332 [2023-11-23 21:34:17,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:17,026 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 37 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:17,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 584 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:34:17,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-11-23 21:34:17,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 330. [2023-11-23 21:34:17,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 320 states have (on average 1.209375) internal successors, (387), 323 states have internal predecessors, (387), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 21:34:17,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 396 transitions. [2023-11-23 21:34:17,041 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 396 transitions. Word has length 131 [2023-11-23 21:34:17,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:17,042 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 396 transitions. [2023-11-23 21:34:17,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2023-11-23 21:34:17,042 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 396 transitions. [2023-11-23 21:34:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:34:17,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:17,044 INFO L195 NwaCegarLoop]: trace histogram [15, 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] [2023-11-23 21:34:17,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:34:17,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:17,248 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:34:17,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:17,248 INFO L85 PathProgramCache]: Analyzing trace with hash 793177176, now seen corresponding path program 1 times [2023-11-23 21:34:17,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:34:17,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416803185] [2023-11-23 21:34:17,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:17,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:17,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:34:17,250 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:34:17,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-23 21:34:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:17,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:34:18,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:34:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 21:34:18,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:34:19,571 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 21:34:19,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:34:19,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416803185] [2023-11-23 21:34:19,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416803185] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:34:19,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:34:19,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-23 21:34:19,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673220670] [2023-11-23 21:34:19,572 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:34:19,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-23 21:34:19,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:34:19,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 21:34:19,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-23 21:34:19,575 INFO L87 Difference]: Start difference. First operand 330 states and 396 transitions. Second operand has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 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) [2023-11-23 21:34:24,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:24,073 INFO L93 Difference]: Finished difference Result 360 states and 442 transitions. [2023-11-23 21:34:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-23 21:34:24,074 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 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 131 [2023-11-23 21:34:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:24,077 INFO L225 Difference]: With dead ends: 360 [2023-11-23 21:34:24,077 INFO L226 Difference]: Without dead ends: 358 [2023-11-23 21:34:24,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-23 21:34:24,081 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 24 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2597 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:24,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2597 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 21:34:24,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-23 21:34:24,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 348. [2023-11-23 21:34:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 338 states have (on average 1.2159763313609468) internal successors, (411), 341 states have internal predecessors, (411), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 21:34:24,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 420 transitions. [2023-11-23 21:34:24,095 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 420 transitions. Word has length 131 [2023-11-23 21:34:24,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:24,096 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 420 transitions. [2023-11-23 21:34:24,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 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) [2023-11-23 21:34:24,096 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 420 transitions. [2023-11-23 21:34:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-23 21:34:24,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:24,099 INFO L195 NwaCegarLoop]: trace histogram [33, 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] [2023-11-23 21:34:24,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:34:24,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:24,310 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:34:24,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:24,311 INFO L85 PathProgramCache]: Analyzing trace with hash -899490888, now seen corresponding path program 2 times [2023-11-23 21:34:24,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:34:24,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822190627] [2023-11-23 21:34:24,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:34:24,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:24,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:34:24,313 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:34:24,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-23 21:34:24,759 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 21:34:24,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:34:24,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:34:24,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:34:24,800 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2023-11-23 21:34:24,800 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:34:24,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:34:24,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822190627] [2023-11-23 21:34:24,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822190627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:24,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:24,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:34:24,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068548160] [2023-11-23 21:34:24,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:24,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:24,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:34:24,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:24,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:24,803 INFO L87 Difference]: Start difference. First operand 348 states and 420 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2023-11-23 21:34:24,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:24,915 INFO L93 Difference]: Finished difference Result 350 states and 416 transitions. [2023-11-23 21:34:24,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:24,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 149 [2023-11-23 21:34:24,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:24,919 INFO L225 Difference]: With dead ends: 350 [2023-11-23 21:34:24,919 INFO L226 Difference]: Without dead ends: 350 [2023-11-23 21:34:24,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:24,920 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:24,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 409 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:34:24,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-23 21:34:24,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2023-11-23 21:34:24,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 338 states have (on average 1.198224852071006) internal successors, (405), 341 states have internal predecessors, (405), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 21:34:24,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 414 transitions. [2023-11-23 21:34:24,935 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 414 transitions. Word has length 149 [2023-11-23 21:34:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:24,935 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 414 transitions. [2023-11-23 21:34:24,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2023-11-23 21:34:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 414 transitions. [2023-11-23 21:34:24,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-23 21:34:24,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:24,938 INFO L195 NwaCegarLoop]: trace histogram [33, 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] [2023-11-23 21:34:24,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:34:25,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:25,142 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 21:34:25,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash 121577466, now seen corresponding path program 1 times [2023-11-23 21:34:25,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:34:25,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350584940] [2023-11-23 21:34:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:25,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:34:25,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:34:25,144 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:34:25,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac74c4e5-6c40-438d-b996-7b53d94a5962/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-23 21:34:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:26,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-23 21:34:26,052 INFO L285 TraceCheckSpWp]: Computing forward predicates...