./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:31:24,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:31:24,292 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-23 22:31:24,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:31:24,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:31:24,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:31:24,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:31:24,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:31:24,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:31:24,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:31:24,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:31:24,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:31:24,331 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:31:24,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:31:24,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:31:24,332 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:31:24,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:31:24,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:31:24,334 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:31:24,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:31:24,339 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:31:24,339 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:31:24,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:31:24,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:31:24,341 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:31:24,341 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:31:24,341 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:31:24,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:31:24,342 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:31:24,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:31:24,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:31:24,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:31:24,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:31:24,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:31:24,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:31:24,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:31:24,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:31:24,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:31:24,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:31:24,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:31:24,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:31:24,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:31:24,348 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_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 [2023-11-23 22:31:24,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:31:24,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:31:24,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:31:24,681 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:31:24,682 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:31:24,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2023-11-23 22:31:27,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:31:28,159 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:31:28,160 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2023-11-23 22:31:28,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/data/ae2c5b93d/afdb1bab2bfe459684ae6e8385bd7550/FLAGa4db2c6fd [2023-11-23 22:31:28,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/data/ae2c5b93d/afdb1bab2bfe459684ae6e8385bd7550 [2023-11-23 22:31:28,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:31:28,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:31:28,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:31:28,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:31:28,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:31:28,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:31:28" (1/1) ... [2023-11-23 22:31:28,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c2de05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:28, skipping insertion in model container [2023-11-23 22:31:28,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:31:28" (1/1) ... [2023-11-23 22:31:28,317 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:31:28,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:31:28,971 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-23 22:31:28,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31b8479a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:28, skipping insertion in model container [2023-11-23 22:31:28,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:31:28,973 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 22:31:28,976 INFO L158 Benchmark]: Toolchain (without parser) took 772.40ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 63.3MB in the beginning and 121.0MB in the end (delta: -57.7MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-11-23 22:31:28,977 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:31:28,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 769.15ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 63.1MB in the beginning and 121.0MB in the end (delta: -57.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-11-23 22:31:28,980 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 769.15ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 63.1MB in the beginning and 121.0MB in the end (delta: -57.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 751]: 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_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:31:31,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:31:31,657 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-23 22:31:31,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:31:31,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:31:31,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:31:31,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:31:31,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:31:31,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:31:31,720 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:31:31,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:31:31,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:31:31,722 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:31:31,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:31:31,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:31:31,725 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:31:31,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:31:31,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:31:31,727 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:31:31,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:31:31,728 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:31:31,729 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:31:31,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:31:31,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:31:31,730 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:31:31,730 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:31:31,731 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:31:31,731 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:31:31,732 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:31:31,732 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:31:31,734 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:31:31,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:31:31,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:31:31,735 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:31:31,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:31:31,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:31:31,736 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:31:31,736 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:31:31,736 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:31:31,737 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:31:31,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:31:31,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:31:31,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:31:31,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:31:31,739 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:31:31,739 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_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 [2023-11-23 22:31:32,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:31:32,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:31:32,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:31:32,163 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:31:32,164 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:31:32,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2023-11-23 22:31:35,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:31:35,756 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:31:35,756 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2023-11-23 22:31:35,794 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/data/cf300cd36/54fda741ff944369b3e7ff3e59f1ee3e/FLAG9c14e5b0e [2023-11-23 22:31:35,819 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/data/cf300cd36/54fda741ff944369b3e7ff3e59f1ee3e [2023-11-23 22:31:35,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:31:35,827 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:31:35,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:31:35,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:31:35,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:31:35,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:31:35" (1/1) ... [2023-11-23 22:31:35,839 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e02792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:35, skipping insertion in model container [2023-11-23 22:31:35,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:31:35" (1/1) ... [2023-11-23 22:31:35,938 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:31:36,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:31:36,585 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 22:31:36,599 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:31:36,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:31:36,757 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:31:36,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:31:36,926 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:31:36,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36 WrapperNode [2023-11-23 22:31:36,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:31:36,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:31:36,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:31:36,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:31:36,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:36,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:37,042 INFO L138 Inliner]: procedures = 180, calls = 238, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 786 [2023-11-23 22:31:37,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:31:37,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:31:37,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:31:37,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:31:37,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:37,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:37,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:37,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:37,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:37,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:37,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:37,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:37,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:31:37,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:31:37,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:31:37,147 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:31:37,148 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (1/1) ... [2023-11-23 22:31:37,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:31:37,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:37,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:31:37,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:31:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 22:31:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 22:31:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 22:31:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 22:31:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 22:31:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 22:31:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:31:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:31:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:31:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 22:31:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 22:31:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:31:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 22:31:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 22:31:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:31:37,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:31:37,503 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:31:37,508 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:31:44,574 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:31:44,617 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:31:44,619 INFO L309 CfgBuilder]: Removed 40 assume(true) statements. [2023-11-23 22:31:44,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:31:44 BoogieIcfgContainer [2023-11-23 22:31:44,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:31:44,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:31:44,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:31:44,627 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:31:44,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:31:35" (1/3) ... [2023-11-23 22:31:44,629 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240a741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:31:44, skipping insertion in model container [2023-11-23 22:31:44,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:36" (2/3) ... [2023-11-23 22:31:44,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240a741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:31:44, skipping insertion in model container [2023-11-23 22:31:44,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:31:44" (3/3) ... [2023-11-23 22:31:44,633 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-2.i [2023-11-23 22:31:44,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:31:44,650 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 22:31:44,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:31:44,701 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;@10e9500e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:31:44,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 22:31:44,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 140 states have (on average 1.6785714285714286) internal successors, (235), 152 states have internal predecessors, (235), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 22:31:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 22:31:44,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:44,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:44,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 22:31:44,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:44,723 INFO L85 PathProgramCache]: Analyzing trace with hash -545432068, now seen corresponding path program 1 times [2023-11-23 22:31:44,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:44,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875418269] [2023-11-23 22:31:44,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:44,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:44,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:44,741 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:44,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 22:31:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:44,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:31:44,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:45,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:45,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:45,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:45,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875418269] [2023-11-23 22:31:45,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875418269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:45,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:45,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:31:45,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957880837] [2023-11-23 22:31:45,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:45,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:31:45,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:45,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:31:45,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:45,065 INFO L87 Difference]: Start difference. First operand has 158 states, 140 states have (on average 1.6785714285714286) internal successors, (235), 152 states have internal predecessors, (235), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:45,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:45,397 INFO L93 Difference]: Finished difference Result 246 states and 329 transitions. [2023-11-23 22:31:45,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:31:45,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-23 22:31:45,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:45,412 INFO L225 Difference]: With dead ends: 246 [2023-11-23 22:31:45,412 INFO L226 Difference]: Without dead ends: 245 [2023-11-23 22:31:45,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:45,417 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 108 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:45,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 411 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:31:45,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-11-23 22:31:45,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 157. [2023-11-23 22:31:45,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 140 states have (on average 1.3428571428571427) internal successors, (188), 151 states have internal predecessors, (188), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 22:31:45,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 214 transitions. [2023-11-23 22:31:45,522 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 214 transitions. Word has length 10 [2023-11-23 22:31:45,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:45,523 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 214 transitions. [2023-11-23 22:31:45,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:45,523 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 214 transitions. [2023-11-23 22:31:45,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 22:31:45,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:45,527 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] [2023-11-23 22:31:45,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 22:31:45,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:45,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 22:31:45,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:45,731 INFO L85 PathProgramCache]: Analyzing trace with hash 47747169, now seen corresponding path program 1 times [2023-11-23 22:31:45,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:45,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265262847] [2023-11-23 22:31:45,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:45,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:45,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:45,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:45,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 22:31:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:46,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:31:46,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:46,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:46,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:46,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:46,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265262847] [2023-11-23 22:31:46,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265262847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:46,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:46,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:31:46,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590621038] [2023-11-23 22:31:46,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:46,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:31:46,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:46,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:31:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:31:46,323 INFO L87 Difference]: Start difference. First operand 157 states and 214 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, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:46,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:46,525 INFO L93 Difference]: Finished difference Result 161 states and 210 transitions. [2023-11-23 22:31:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:31:46,526 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, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-23 22:31:46,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:46,528 INFO L225 Difference]: With dead ends: 161 [2023-11-23 22:31:46,529 INFO L226 Difference]: Without dead ends: 161 [2023-11-23 22:31:46,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:31:46,531 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 36 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:46,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 516 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:31:46,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-23 22:31:46,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2023-11-23 22:31:46,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 143 states have (on average 1.2797202797202798) internal successors, (183), 154 states have internal predecessors, (183), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 22:31:46,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2023-11-23 22:31:46,564 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 65 [2023-11-23 22:31:46,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:46,565 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2023-11-23 22:31:46,565 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, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:46,565 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2023-11-23 22:31:46,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 22:31:46,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:46,569 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] [2023-11-23 22:31:46,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-23 22:31:46,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:46,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 22:31:46,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:46,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1993559723, now seen corresponding path program 1 times [2023-11-23 22:31:46,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:46,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453218991] [2023-11-23 22:31:46,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:46,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:46,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:46,774 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:46,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 22:31:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:47,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:31:47,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:47,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:47,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:47,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453218991] [2023-11-23 22:31:47,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453218991] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:47,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:47,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:31:47,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850936308] [2023-11-23 22:31:47,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:47,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:31:47,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:47,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:31:47,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:47,621 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:48,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:48,684 INFO L93 Difference]: Finished difference Result 232 states and 294 transitions. [2023-11-23 22:31:48,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:31:48,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-23 22:31:48,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:48,692 INFO L225 Difference]: With dead ends: 232 [2023-11-23 22:31:48,692 INFO L226 Difference]: Without dead ends: 232 [2023-11-23 22:31:48,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:48,694 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 48 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:48,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 359 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 22:31:48,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-11-23 22:31:48,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 202. [2023-11-23 22:31:48,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 185 states have (on average 1.2378378378378379) internal successors, (229), 196 states have internal predecessors, (229), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 22:31:48,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 255 transitions. [2023-11-23 22:31:48,718 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 255 transitions. Word has length 65 [2023-11-23 22:31:48,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:48,720 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 255 transitions. [2023-11-23 22:31:48,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:48,721 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 255 transitions. [2023-11-23 22:31:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 22:31:48,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:48,730 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 22:31:48,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:48,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:48,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 22:31:48,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:48,939 INFO L85 PathProgramCache]: Analyzing trace with hash -78758650, now seen corresponding path program 1 times [2023-11-23 22:31:48,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:48,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812222872] [2023-11-23 22:31:48,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:48,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:48,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:48,942 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:48,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 22:31:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:49,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:31:49,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:49,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:49,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:49,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812222872] [2023-11-23 22:31:49,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812222872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:49,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:49,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:31:49,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591842384] [2023-11-23 22:31:49,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:49,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:31:49,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:49,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:31:49,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:31:49,562 INFO L87 Difference]: Start difference. First operand 202 states and 255 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:31:49,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:49,656 INFO L93 Difference]: Finished difference Result 204 states and 258 transitions. [2023-11-23 22:31:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:31:49,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 78 [2023-11-23 22:31:49,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:49,660 INFO L225 Difference]: With dead ends: 204 [2023-11-23 22:31:49,660 INFO L226 Difference]: Without dead ends: 204 [2023-11-23 22:31:49,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:31:49,662 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:49,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 584 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:31:49,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-23 22:31:49,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-11-23 22:31:49,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 186 states have (on average 1.2419354838709677) internal successors, (231), 198 states have internal predecessors, (231), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-23 22:31:49,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 258 transitions. [2023-11-23 22:31:49,676 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 258 transitions. Word has length 78 [2023-11-23 22:31:49,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:49,676 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 258 transitions. [2023-11-23 22:31:49,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:31:49,677 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 258 transitions. [2023-11-23 22:31:49,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 22:31:49,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:49,679 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] [2023-11-23 22:31:49,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:49,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:49,887 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 22:31:49,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:49,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1518640872, now seen corresponding path program 1 times [2023-11-23 22:31:49,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:49,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045987360] [2023-11-23 22:31:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:49,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:49,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:49,891 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:49,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 22:31:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:50,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:31:50,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:50,534 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:31:50,535 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:31:50,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:50,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045987360] [2023-11-23 22:31:50,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045987360] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:50,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:31:50,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-23 22:31:50,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538666248] [2023-11-23 22:31:50,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:50,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:31:50,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:50,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:31:50,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:31:50,698 INFO L87 Difference]: Start difference. First operand 204 states and 258 transitions. Second operand has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:31:51,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:51,018 INFO L93 Difference]: Finished difference Result 213 states and 272 transitions. [2023-11-23 22:31:51,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:31:51,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 80 [2023-11-23 22:31:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:51,022 INFO L225 Difference]: With dead ends: 213 [2023-11-23 22:31:51,022 INFO L226 Difference]: Without dead ends: 213 [2023-11-23 22:31:51,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:31:51,024 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 6 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:51,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 584 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:31:51,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-23 22:31:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 212. [2023-11-23 22:31:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 193 states have (on average 1.2642487046632125) internal successors, (244), 205 states have internal predecessors, (244), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-23 22:31:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 271 transitions. [2023-11-23 22:31:51,039 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 271 transitions. Word has length 80 [2023-11-23 22:31:51,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:51,040 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 271 transitions. [2023-11-23 22:31:51,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:31:51,040 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 271 transitions. [2023-11-23 22:31:51,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 22:31:51,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:51,043 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-23 22:31:51,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:51,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:51,252 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 22:31:51,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:51,252 INFO L85 PathProgramCache]: Analyzing trace with hash -238876026, now seen corresponding path program 2 times [2023-11-23 22:31:51,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:51,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966299699] [2023-11-23 22:31:51,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:31:51,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:51,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:51,254 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:51,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-23 22:31:51,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:31:51,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:51,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:31:51,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 22:31:51,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:31:52,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:52,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966299699] [2023-11-23 22:31:52,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966299699] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:52,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:31:52,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-23 22:31:52,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242895170] [2023-11-23 22:31:52,348 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:52,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 22:31:52,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:52,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 22:31:52,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-23 22:31:52,351 INFO L87 Difference]: Start difference. First operand 212 states and 271 transitions. Second operand has 14 states, 12 states have (on average 7.25) internal successors, (87), 14 states have internal predecessors, (87), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:31:53,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:53,541 INFO L93 Difference]: Finished difference Result 227 states and 293 transitions. [2023-11-23 22:31:53,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-23 22:31:53,542 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.25) internal successors, (87), 14 states have internal predecessors, (87), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 84 [2023-11-23 22:31:53,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:53,545 INFO L225 Difference]: With dead ends: 227 [2023-11-23 22:31:53,545 INFO L226 Difference]: Without dead ends: 225 [2023-11-23 22:31:53,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-23 22:31:53,547 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 13 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:53,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1164 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 22:31:53,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-11-23 22:31:53,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 221. [2023-11-23 22:31:53,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 202 states have (on average 1.2673267326732673) internal successors, (256), 214 states have internal predecessors, (256), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-23 22:31:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 283 transitions. [2023-11-23 22:31:53,568 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 283 transitions. Word has length 84 [2023-11-23 22:31:53,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:53,570 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 283 transitions. [2023-11-23 22:31:53,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.25) internal successors, (87), 14 states have internal predecessors, (87), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:31:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 283 transitions. [2023-11-23 22:31:53,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 22:31:53,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:53,574 INFO L195 NwaCegarLoop]: trace histogram [15, 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] [2023-11-23 22:31:53,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:53,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:53,787 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 22:31:53,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:53,788 INFO L85 PathProgramCache]: Analyzing trace with hash -566278794, now seen corresponding path program 3 times [2023-11-23 22:31:53,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:53,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450675232] [2023-11-23 22:31:53,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 22:31:53,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:53,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:53,791 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:53,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-23 22:31:54,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 22:31:54,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:54,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:31:54,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-23 22:31:54,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:54,875 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-23 22:31:54,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:54,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450675232] [2023-11-23 22:31:54,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450675232] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:54,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:31:54,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-23 22:31:54,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343341960] [2023-11-23 22:31:54,876 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:54,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:31:54,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:54,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:31:54,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:31:54,879 INFO L87 Difference]: Start difference. First operand 221 states and 283 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:31:55,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:55,603 INFO L93 Difference]: Finished difference Result 453 states and 567 transitions. [2023-11-23 22:31:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:31:55,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 93 [2023-11-23 22:31:55,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:55,609 INFO L225 Difference]: With dead ends: 453 [2023-11-23 22:31:55,609 INFO L226 Difference]: Without dead ends: 453 [2023-11-23 22:31:55,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:31:55,611 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 465 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:55,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 855 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 22:31:55,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-11-23 22:31:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2023-11-23 22:31:55,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 425 states have (on average 1.2211764705882353) internal successors, (519), 437 states have internal predecessors, (519), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (26), 13 states have call predecessors, (26), 22 states have call successors, (26) [2023-11-23 22:31:55,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 567 transitions. [2023-11-23 22:31:55,633 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 567 transitions. Word has length 93 [2023-11-23 22:31:55,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:55,634 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 567 transitions. [2023-11-23 22:31:55,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:31:55,634 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 567 transitions. [2023-11-23 22:31:55,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-23 22:31:55,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:55,640 INFO L195 NwaCegarLoop]: trace histogram [15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:55,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:55,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:55,853 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 22:31:55,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:55,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1210163771, now seen corresponding path program 1 times [2023-11-23 22:31:55,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:55,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596370518] [2023-11-23 22:31:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:55,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:55,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:55,857 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:55,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-23 22:31:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:57,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:31:57,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 180 proven. 55 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-23 22:31:57,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 112 proven. 122 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-23 22:31:58,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:58,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596370518] [2023-11-23 22:31:58,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596370518] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:58,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:31:58,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-23 22:31:58,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134496336] [2023-11-23 22:31:58,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:58,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-23 22:31:58,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:58,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 22:31:58,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-23 22:31:58,781 INFO L87 Difference]: Start difference. First operand 453 states and 567 transitions. Second operand has 26 states, 24 states have (on average 5.75) internal successors, (138), 26 states have internal predecessors, (138), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:32:03,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:03,162 INFO L93 Difference]: Finished difference Result 483 states and 643 transitions. [2023-11-23 22:32:03,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-23 22:32:03,164 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.75) internal successors, (138), 26 states have internal predecessors, (138), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 258 [2023-11-23 22:32:03,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:03,172 INFO L225 Difference]: With dead ends: 483 [2023-11-23 22:32:03,172 INFO L226 Difference]: Without dead ends: 481 [2023-11-23 22:32:03,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-23 22:32:03,179 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 24 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:03,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2321 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 22:32:03,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-23 22:32:03,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 471. [2023-11-23 22:32:03,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 443 states have (on average 1.2257336343115124) internal successors, (543), 455 states have internal predecessors, (543), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (26), 13 states have call predecessors, (26), 22 states have call successors, (26) [2023-11-23 22:32:03,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 591 transitions. [2023-11-23 22:32:03,230 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 591 transitions. Word has length 258 [2023-11-23 22:32:03,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:03,231 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 591 transitions. [2023-11-23 22:32:03,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.75) internal successors, (138), 26 states have internal predecessors, (138), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:32:03,232 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 591 transitions. [2023-11-23 22:32:03,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-11-23 22:32:03,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:03,240 INFO L195 NwaCegarLoop]: trace histogram [33, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:03,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:32:03,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:32:03,460 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-23 22:32:03,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:03,461 INFO L85 PathProgramCache]: Analyzing trace with hash 684276411, now seen corresponding path program 2 times [2023-11-23 22:32:03,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:32:03,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869467654] [2023-11-23 22:32:03,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:32:03,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:32:03,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:32:03,464 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:32:03,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540490f-d81c-476b-b880-98b982777b1f/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-23 22:32:05,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:32:05,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:32:05,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-23 22:32:05,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:32:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 390 proven. 253 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2023-11-23 22:32:06,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:32:09,271 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 112 proven. 530 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-11-23 22:32:09,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:32:09,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869467654] [2023-11-23 22:32:09,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869467654] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:32:09,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:32:09,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-23 22:32:09,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398392189] [2023-11-23 22:32:09,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:32:09,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-23 22:32:09,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:32:09,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-23 22:32:09,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-23 22:32:09,279 INFO L87 Difference]: Start difference. First operand 471 states and 591 transitions. Second operand has 50 states, 48 states have (on average 3.375) internal successors, (162), 50 states have internal predecessors, (162), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)