./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff 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_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu --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 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:19,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:19,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-19 07:43:19,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:19,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:19,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:19,186 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:19,186 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:19,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:19,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:19,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:19,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:19,195 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:19,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:19,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:43:19,198 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:43:19,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:19,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:43:19,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:19,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:43:19,201 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:43:19,201 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:43:19,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:19,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:43:19,203 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:43:19,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:43:19,204 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:43:19,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:43:19,205 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:19,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:19,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:19,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:19,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:19,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:19,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:19,207 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:43:19,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:43:19,208 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:19,208 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:19,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:19,209 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:19,209 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_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 [2023-11-19 07:43:19,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:19,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:19,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:19,473 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:19,473 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:19,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2023-11-19 07:43:22,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:23,108 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:23,113 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2023-11-19 07:43:23,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/data/523a29b35/102adec690624fb08f24e0e6dd0ed29f/FLAGb81e1a7c4 [2023-11-19 07:43:23,156 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/data/523a29b35/102adec690624fb08f24e0e6dd0ed29f [2023-11-19 07:43:23,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:23,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:23,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:23,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:23,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:23,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2eac26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23, skipping insertion in model container [2023-11-19 07:43:23,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,282 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:23,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:23,843 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) [2023-11-19 07:43:23,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4dc38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23, skipping insertion in model container [2023-11-19 07:43:23,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:23,844 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:43:23,846 INFO L158 Benchmark]: Toolchain (without parser) took 677.36ms. Allocated memory is still 199.2MB. Free memory was 150.1MB in the beginning and 130.4MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:43:23,847 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 132.1MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:23,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 671.45ms. Allocated memory is still 199.2MB. Free memory was 150.1MB in the beginning and 130.4MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:43:23,850 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 132.1MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 671.45ms. Allocated memory is still 199.2MB. Free memory was 150.1MB in the beginning and 130.4MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu --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 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:26,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:26,675 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-19 07:43:26,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:26,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:26,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:26,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:26,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:26,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:26,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:26,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:26,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:26,738 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:26,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:26,741 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:43:26,742 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:43:26,742 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:26,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:43:26,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:26,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:43:26,745 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:43:26,746 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:43:26,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:26,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:43:26,747 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:43:26,748 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:43:26,748 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:43:26,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:43:26,749 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:43:26,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:43:26,751 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:26,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:26,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:26,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:26,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:26,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:26,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:26,754 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:43:26,754 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:43:26,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:26,756 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:26,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:26,757 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:43:26,757 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:26,758 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_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 [2023-11-19 07:43:27,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:27,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:27,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:27,252 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:27,252 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:27,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2023-11-19 07:43:30,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:31,043 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:31,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2023-11-19 07:43:31,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/data/be624abf4/9a6c9dec64d64975b3e368f096fa8968/FLAG3217b8939 [2023-11-19 07:43:31,098 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/data/be624abf4/9a6c9dec64d64975b3e368f096fa8968 [2023-11-19 07:43:31,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:31,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:31,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:31,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:31,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:31,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:31" (1/1) ... [2023-11-19 07:43:31,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f63e316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:31, skipping insertion in model container [2023-11-19 07:43:31,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:31" (1/1) ... [2023-11-19 07:43:31,218 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:31,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:32,019 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:43:32,037 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:32,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:32,184 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:32,285 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:32,333 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:32,341 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:32,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32 WrapperNode [2023-11-19 07:43:32,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:32,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:32,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:32,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:32,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,472 INFO L138 Inliner]: procedures = 180, calls = 299, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1002 [2023-11-19 07:43:32,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:32,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:32,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:32,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:32,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,632 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:32,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:32,680 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:32,680 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:32,681 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (1/1) ... [2023-11-19 07:43:32,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:32,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:32,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:32,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:43:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:43:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:43:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:43:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:43:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:43:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:43:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:43:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2023-11-19 07:43:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2023-11-19 07:43:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:43:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:43:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:43:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:43:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:43:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:43:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:43:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:43:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:32,997 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:32,999 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:41,755 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:41,776 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:41,776 INFO L302 CfgBuilder]: Removed 62 assume(true) statements. [2023-11-19 07:43:41,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:41 BoogieIcfgContainer [2023-11-19 07:43:41,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:41,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:41,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:41,790 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:41,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:31" (1/3) ... [2023-11-19 07:43:41,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bdd5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:41, skipping insertion in model container [2023-11-19 07:43:41,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32" (2/3) ... [2023-11-19 07:43:41,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bdd5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:41, skipping insertion in model container [2023-11-19 07:43:41,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:41" (3/3) ... [2023-11-19 07:43:41,794 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test8-1.i [2023-11-19 07:43:41,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:41,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:43:41,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:41,910 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;@6ffc3973, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:41,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:43:41,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 237 states, 208 states have (on average 1.6682692307692308) internal successors, (347), 227 states have internal predecessors, (347), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 07:43:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:43:41,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:41,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:41,930 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:41,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:41,939 INFO L85 PathProgramCache]: Analyzing trace with hash 877740678, now seen corresponding path program 1 times [2023-11-19 07:43:41,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:41,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206275619] [2023-11-19 07:43:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:41,962 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 [2023-11-19 07:43:41,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:41,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:43:41,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:42,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:43:42,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:42,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:42,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:42,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206275619] [2023-11-19 07:43:42,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206275619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:42,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:42,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:42,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540393361] [2023-11-19 07:43:42,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:42,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:43:42,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:42,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:43:42,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:43:42,323 INFO L87 Difference]: Start difference. First operand has 237 states, 208 states have (on average 1.6682692307692308) internal successors, (347), 227 states have internal predecessors, (347), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-19 07:43:42,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:42,397 INFO L93 Difference]: Finished difference Result 235 states and 320 transitions. [2023-11-19 07:43:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:43:42,400 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-11-19 07:43:42,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:42,415 INFO L225 Difference]: With dead ends: 235 [2023-11-19 07:43:42,415 INFO L226 Difference]: Without dead ends: 233 [2023-11-19 07:43:42,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:43:42,424 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:42,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:42,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-19 07:43:42,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2023-11-19 07:43:42,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 206 states have (on average 1.3398058252427185) internal successors, (276), 223 states have internal predecessors, (276), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:42,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 318 transitions. [2023-11-19 07:43:42,513 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 318 transitions. Word has length 7 [2023-11-19 07:43:42,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:42,514 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 318 transitions. [2023-11-19 07:43:42,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-19 07:43:42,514 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 318 transitions. [2023-11-19 07:43:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:43:42,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:42,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:42,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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)] Ended with exit code 0 [2023-11-19 07:43:42,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:42,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:42,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:42,718 INFO L85 PathProgramCache]: Analyzing trace with hash 775570313, now seen corresponding path program 1 times [2023-11-19 07:43:42,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:42,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139078715] [2023-11-19 07:43:42,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:42,719 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 [2023-11-19 07:43:42,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:42,749 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:43:42,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:42,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:43:42,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:43,035 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:43:43,036 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:43:43,037 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:43:43,052 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 [2023-11-19 07:43:43,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:43:43,157 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 [2023-11-19 07:43:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:43,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:43,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:43,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139078715] [2023-11-19 07:43:43,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139078715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:43,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:43,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:43,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895798715] [2023-11-19 07:43:43,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:43,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:43,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:43,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:43,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:43,202 INFO L87 Difference]: Start difference. First operand 233 states and 318 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-19 07:43:47,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:51,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:52,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:52,157 INFO L93 Difference]: Finished difference Result 354 states and 478 transitions. [2023-11-19 07:43:52,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:52,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2023-11-19 07:43:52,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:52,164 INFO L225 Difference]: With dead ends: 354 [2023-11-19 07:43:52,164 INFO L226 Difference]: Without dead ends: 354 [2023-11-19 07:43:52,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:52,166 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 149 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:52,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 808 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2023-11-19 07:43:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-19 07:43:52,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 235. [2023-11-19 07:43:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 208 states have (on average 1.3365384615384615) internal successors, (278), 225 states have internal predecessors, (278), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:52,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 320 transitions. [2023-11-19 07:43:52,202 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 320 transitions. Word has length 9 [2023-11-19 07:43:52,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:52,202 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 320 transitions. [2023-11-19 07:43:52,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-19 07:43:52,203 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 320 transitions. [2023-11-19 07:43:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:43:52,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:52,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:52,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:52,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:52,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:52,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:52,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1158076757, now seen corresponding path program 1 times [2023-11-19 07:43:52,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:52,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034589997] [2023-11-19 07:43:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:52,413 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 [2023-11-19 07:43:52,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:52,415 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:43:52,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:52,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:52,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:52,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:52,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:52,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034589997] [2023-11-19 07:43:52,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034589997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:52,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:52,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:52,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88458206] [2023-11-19 07:43:52,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:52,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:52,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:52,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:52,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:52,946 INFO L87 Difference]: Start difference. First operand 235 states and 320 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:53,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:53,130 INFO L93 Difference]: Finished difference Result 239 states and 316 transitions. [2023-11-19 07:43:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:53,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-19 07:43:53,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:53,133 INFO L225 Difference]: With dead ends: 239 [2023-11-19 07:43:53,133 INFO L226 Difference]: Without dead ends: 239 [2023-11-19 07:43:53,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:53,135 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 37 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:53,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 840 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:43:53,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-11-19 07:43:53,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 238. [2023-11-19 07:43:53,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 211 states have (on average 1.2938388625592416) internal successors, (273), 228 states have internal predecessors, (273), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 315 transitions. [2023-11-19 07:43:53,155 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 315 transitions. Word has length 67 [2023-11-19 07:43:53,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:53,156 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 315 transitions. [2023-11-19 07:43:53,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 315 transitions. [2023-11-19 07:43:53,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:43:53,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:53,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:53,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:53,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:53,368 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:53,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:53,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1136190153, now seen corresponding path program 1 times [2023-11-19 07:43:53,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:53,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968243116] [2023-11-19 07:43:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:53,371 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 [2023-11-19 07:43:53,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:53,374 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:43:53,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:53,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:43:53,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:54,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:54,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:54,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968243116] [2023-11-19 07:43:54,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968243116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:54,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:54,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:43:54,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528453673] [2023-11-19 07:43:54,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:54,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:54,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:54,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:54,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:54,075 INFO L87 Difference]: Start difference. First operand 238 states and 315 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:54,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:54,200 INFO L93 Difference]: Finished difference Result 232 states and 305 transitions. [2023-11-19 07:43:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:54,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-19 07:43:54,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:54,204 INFO L225 Difference]: With dead ends: 232 [2023-11-19 07:43:54,204 INFO L226 Difference]: Without dead ends: 232 [2023-11-19 07:43:54,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:54,206 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 7 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:54,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 839 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:54,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-11-19 07:43:54,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2023-11-19 07:43:54,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 205 states have (on average 1.2829268292682927) internal successors, (263), 222 states have internal predecessors, (263), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:54,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 305 transitions. [2023-11-19 07:43:54,222 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 305 transitions. Word has length 67 [2023-11-19 07:43:54,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:54,223 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 305 transitions. [2023-11-19 07:43:54,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 305 transitions. [2023-11-19 07:43:54,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:43:54,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:54,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:54,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:54,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:54,436 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:54,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:54,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1530556939, now seen corresponding path program 1 times [2023-11-19 07:43:54,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:54,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088859013] [2023-11-19 07:43:54,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:54,438 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 [2023-11-19 07:43:54,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:54,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:43:54,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:54,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:54,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:55,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:55,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:55,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088859013] [2023-11-19 07:43:55,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088859013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:55,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:55,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:55,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389340170] [2023-11-19 07:43:55,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:55,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:55,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:55,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:55,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:55,299 INFO L87 Difference]: Start difference. First operand 232 states and 305 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:55,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:55,968 INFO L93 Difference]: Finished difference Result 341 states and 436 transitions. [2023-11-19 07:43:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:55,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-19 07:43:55,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:55,973 INFO L225 Difference]: With dead ends: 341 [2023-11-19 07:43:55,973 INFO L226 Difference]: Without dead ends: 341 [2023-11-19 07:43:55,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:55,975 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 96 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:55,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 622 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:43:55,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-19 07:43:55,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 336. [2023-11-19 07:43:55,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 308 states have (on average 1.2597402597402598) internal successors, (388), 325 states have internal predecessors, (388), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 07:43:55,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 432 transitions. [2023-11-19 07:43:55,997 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 432 transitions. Word has length 67 [2023-11-19 07:43:55,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:55,999 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 432 transitions. [2023-11-19 07:43:55,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:56,000 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 432 transitions. [2023-11-19 07:43:56,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-19 07:43:56,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:56,012 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, 1, 1, 1] [2023-11-19 07:43:56,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:56,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:56,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:56,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:56,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1761621234, now seen corresponding path program 1 times [2023-11-19 07:43:56,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:56,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79406219] [2023-11-19 07:43:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:56,222 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 [2023-11-19 07:43:56,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:56,228 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:43:56,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:56,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:56,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:56,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:56,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:56,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:56,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79406219] [2023-11-19 07:43:56,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79406219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:56,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:56,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:56,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261876365] [2023-11-19 07:43:56,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:56,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:56,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:56,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:56,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:56,840 INFO L87 Difference]: Start difference. First operand 336 states and 432 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:43:56,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:56,906 INFO L93 Difference]: Finished difference Result 339 states and 436 transitions. [2023-11-19 07:43:56,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:56,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 82 [2023-11-19 07:43:56,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:56,910 INFO L225 Difference]: With dead ends: 339 [2023-11-19 07:43:56,911 INFO L226 Difference]: Without dead ends: 339 [2023-11-19 07:43:56,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:56,912 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:56,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 896 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:56,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-11-19 07:43:56,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2023-11-19 07:43:56,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 310 states have (on average 1.261290322580645) internal successors, (391), 328 states have internal predecessors, (391), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-19 07:43:56,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 436 transitions. [2023-11-19 07:43:56,928 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 436 transitions. Word has length 82 [2023-11-19 07:43:56,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:56,929 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 436 transitions. [2023-11-19 07:43:56,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:43:56,929 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 436 transitions. [2023-11-19 07:43:56,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 07:43:56,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:56,931 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, 1, 1, 1] [2023-11-19 07:43:56,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:57,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:57,139 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:57,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:57,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1421786640, now seen corresponding path program 1 times [2023-11-19 07:43:57,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:57,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444713875] [2023-11-19 07:43:57,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:57,140 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 [2023-11-19 07:43:57,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:57,143 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:43:57,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:57,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:57,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:57,732 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:43:57,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:43:57,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:57,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444713875] [2023-11-19 07:43:57,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444713875] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:43:57,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:43:57,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 07:43:57,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200448384] [2023-11-19 07:43:57,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:57,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:43:57,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:43:57,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:43:57,867 INFO L87 Difference]: Start difference. First operand 339 states and 436 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:43:58,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:58,146 INFO L93 Difference]: Finished difference Result 350 states and 452 transitions. [2023-11-19 07:43:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:43:58,147 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 84 [2023-11-19 07:43:58,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:58,150 INFO L225 Difference]: With dead ends: 350 [2023-11-19 07:43:58,150 INFO L226 Difference]: Without dead ends: 350 [2023-11-19 07:43:58,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:43:58,151 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 8 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:58,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1195 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:43:58,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-19 07:43:58,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2023-11-19 07:43:58,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 318 states have (on average 1.2735849056603774) internal successors, (405), 336 states have internal predecessors, (405), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-19 07:43:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 450 transitions. [2023-11-19 07:43:58,167 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 450 transitions. Word has length 84 [2023-11-19 07:43:58,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:58,167 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 450 transitions. [2023-11-19 07:43:58,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:43:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 450 transitions. [2023-11-19 07:43:58,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 07:43:58,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:58,169 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] [2023-11-19 07:43:58,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:58,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:58,378 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:58,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:58,378 INFO L85 PathProgramCache]: Analyzing trace with hash -735044846, now seen corresponding path program 2 times [2023-11-19 07:43:58,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:58,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334245593] [2023-11-19 07:43:58,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:43:58,379 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 [2023-11-19 07:43:58,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:58,380 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:43:58,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:43:59,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:43:59,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:43:59,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:43:59,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:44:00,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:44:00,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:44:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334245593] [2023-11-19 07:44:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334245593] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:00,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:44:00,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-19 07:44:00,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405532919] [2023-11-19 07:44:00,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:00,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:44:00,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:44:00,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:44:00,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:44:00,552 INFO L87 Difference]: Start difference. First operand 348 states and 450 transitions. Second operand has 14 states, 14 states have (on average 6.5) internal successors, (91), 14 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:44:01,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:01,621 INFO L93 Difference]: Finished difference Result 369 states and 478 transitions. [2023-11-19 07:44:01,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:44:01,622 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.5) internal successors, (91), 14 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 88 [2023-11-19 07:44:01,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:01,625 INFO L225 Difference]: With dead ends: 369 [2023-11-19 07:44:01,625 INFO L226 Difference]: Without dead ends: 365 [2023-11-19 07:44:01,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:44:01,627 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 17 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2402 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:01,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2402 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:44:01,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-19 07:44:01,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 357. [2023-11-19 07:44:01,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 327 states have (on average 1.275229357798165) internal successors, (417), 345 states have internal predecessors, (417), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-19 07:44:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 462 transitions. [2023-11-19 07:44:01,641 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 462 transitions. Word has length 88 [2023-11-19 07:44:01,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:01,642 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 462 transitions. [2023-11-19 07:44:01,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.5) internal successors, (91), 14 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:44:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 462 transitions. [2023-11-19 07:44:01,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 07:44:01,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:01,644 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] [2023-11-19 07:44:01,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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)] Ended with exit code 0 [2023-11-19 07:44:01,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:44:01,855 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:44:01,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:01,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1561641761, now seen corresponding path program 3 times [2023-11-19 07:44:01,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:44:01,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752080283] [2023-11-19 07:44:01,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:44:01,857 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 [2023-11-19 07:44:01,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:44:01,858 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:44:01,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:44:05,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-19 07:44:05,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:44:05,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:44:05,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:05,316 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 68 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-19 07:44:05,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 68 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-19 07:44:05,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:44:05,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752080283] [2023-11-19 07:44:05,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752080283] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:05,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:44:05,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-19 07:44:05,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417925515] [2023-11-19 07:44:05,844 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:05,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-19 07:44:05,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:44:05,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-19 07:44:05,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:44:05,846 INFO L87 Difference]: Start difference. First operand 357 states and 462 transitions. Second operand has 16 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:44:07,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:07,038 INFO L93 Difference]: Finished difference Result 376 states and 487 transitions. [2023-11-19 07:44:07,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:44:07,039 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 97 [2023-11-19 07:44:07,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:07,042 INFO L225 Difference]: With dead ends: 376 [2023-11-19 07:44:07,042 INFO L226 Difference]: Without dead ends: 374 [2023-11-19 07:44:07,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=288, Invalid=524, Unknown=0, NotChecked=0, Total=812 [2023-11-19 07:44:07,043 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 29 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3281 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:07,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3281 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:44:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-19 07:44:07,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 364. [2023-11-19 07:44:07,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 334 states have (on average 1.2874251497005988) internal successors, (430), 352 states have internal predecessors, (430), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-19 07:44:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 475 transitions. [2023-11-19 07:44:07,057 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 475 transitions. Word has length 97 [2023-11-19 07:44:07,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:07,058 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 475 transitions. [2023-11-19 07:44:07,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:44:07,058 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 475 transitions. [2023-11-19 07:44:07,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:44:07,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:07,060 INFO L195 NwaCegarLoop]: trace histogram [22, 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] [2023-11-19 07:44:07,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:44:07,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:44:07,273 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:44:07,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:07,273 INFO L85 PathProgramCache]: Analyzing trace with hash -899193134, now seen corresponding path program 4 times [2023-11-19 07:44:07,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:44:07,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363699445] [2023-11-19 07:44:07,275 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-19 07:44:07,275 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 [2023-11-19 07:44:07,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:44:07,276 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:44:07,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:44:08,046 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-19 07:44:08,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:44:08,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:44:08,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 146 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-19 07:44:08,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-11-19 07:44:09,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:44:09,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363699445] [2023-11-19 07:44:09,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363699445] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:09,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:44:09,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-19 07:44:09,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228428016] [2023-11-19 07:44:09,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:09,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-19 07:44:09,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:44:09,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-19 07:44:09,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-19 07:44:09,518 INFO L87 Difference]: Start difference. First operand 364 states and 475 transitions. Second operand has 26 states, 26 states have (on average 3.9615384615384617) internal successors, (103), 26 states have internal predecessors, (103), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:44:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:13,068 INFO L93 Difference]: Finished difference Result 400 states and 521 transitions. [2023-11-19 07:44:13,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-19 07:44:13,069 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.9615384615384617) internal successors, (103), 26 states have internal predecessors, (103), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 104 [2023-11-19 07:44:13,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:13,072 INFO L225 Difference]: With dead ends: 400 [2023-11-19 07:44:13,072 INFO L226 Difference]: Without dead ends: 396 [2023-11-19 07:44:13,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=998, Invalid=2194, Unknown=0, NotChecked=0, Total=3192 [2023-11-19 07:44:13,075 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 34 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:13,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3680 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 07:44:13,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-11-19 07:44:13,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 376. [2023-11-19 07:44:13,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 346 states have (on average 1.277456647398844) internal successors, (442), 364 states have internal predecessors, (442), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-19 07:44:13,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 487 transitions. [2023-11-19 07:44:13,091 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 487 transitions. Word has length 104 [2023-11-19 07:44:13,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:13,092 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 487 transitions. [2023-11-19 07:44:13,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.9615384615384617) internal successors, (103), 26 states have internal predecessors, (103), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:44:13,092 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 487 transitions. [2023-11-19 07:44:13,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-19 07:44:13,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:13,094 INFO L195 NwaCegarLoop]: trace histogram [34, 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] [2023-11-19 07:44:13,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:44:13,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:44:13,305 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:44:13,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:13,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1558848402, now seen corresponding path program 5 times [2023-11-19 07:44:13,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:44:13,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744655319] [2023-11-19 07:44:13,307 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-19 07:44:13,307 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 [2023-11-19 07:44:13,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:44:13,309 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:44:13,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2271a1-8575-4836-8f25-baa540f4624a/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:44:15,087 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2023-11-19 07:44:15,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:44:15,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 07:44:15,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 302 proven. 253 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-19 07:44:16,103 INFO L327 TraceCheckSpWp]: Computing backward predicates...