./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc 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_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya --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 ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:42:21,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:42:21,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 00:42:21,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:42:21,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:42:21,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:42:21,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:42:21,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:42:21,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:42:21,917 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:42:21,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:42:21,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:42:21,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:42:21,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:42:21,920 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:42:21,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:42:21,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:42:21,922 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:42:21,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:42:21,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:42:21,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:42:21,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:42:21,924 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 00:42:21,925 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 00:42:21,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:42:21,926 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:42:21,926 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:42:21,927 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:42:21,927 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:42:21,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:42:21,928 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:42:21,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:42:21,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:42:21,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:42:21,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:42:21,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:42:21,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:42:21,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:42:21,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:42:21,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:42:21,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:42:21,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:42:21,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:42:21,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:42:21,931 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_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2023-11-29 00:42:22,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:42:22,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:42:22,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:42:22,158 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:42:22,159 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:42:22,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2023-11-29 00:42:24,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:42:25,225 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:42:25,226 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2023-11-29 00:42:25,244 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/data/ac89a11c5/d22334e4ed5448dcab97a3f159f1334e/FLAGf32e25964 [2023-11-29 00:42:25,259 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/data/ac89a11c5/d22334e4ed5448dcab97a3f159f1334e [2023-11-29 00:42:25,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:42:25,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:42:25,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:42:25,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:42:25,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:42:25,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:42:25" (1/1) ... [2023-11-29 00:42:25,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328fa0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:25, skipping insertion in model container [2023-11-29 00:42:25,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:42:25" (1/1) ... [2023-11-29 00:42:25,336 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:42:25,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:42:25,835 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) [2023-11-29 00:42:25,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39117528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:25, skipping insertion in model container [2023-11-29 00:42:25,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:42:25,836 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 00:42:25,838 INFO L158 Benchmark]: Toolchain (without parser) took 573.23ms. Allocated memory is still 148.9MB. Free memory was 101.6MB in the beginning and 81.0MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 00:42:25,838 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 148.9MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:42:25,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.61ms. Allocated memory is still 148.9MB. Free memory was 101.1MB in the beginning and 81.0MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 00:42:25,841 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 148.9MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.61ms. Allocated memory is still 148.9MB. Free memory was 101.1MB in the beginning and 81.0MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 740]: 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_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya --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 ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:42:27,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:42:27,650 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 00:42:27,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:42:27,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:42:27,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:42:27,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:42:27,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:42:27,692 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:42:27,693 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:42:27,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:42:27,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:42:27,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:42:27,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:42:27,696 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:42:27,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:42:27,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:42:27,697 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:42:27,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:42:27,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:42:27,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:42:27,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:42:27,700 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 00:42:27,700 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 00:42:27,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:42:27,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:42:27,701 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:42:27,702 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 00:42:27,702 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 00:42:27,702 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:42:27,703 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:42:27,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:42:27,703 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:42:27,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:42:27,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:42:27,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:42:27,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:42:27,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:42:27,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:42:27,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:42:27,705 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 00:42:27,706 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 00:42:27,706 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:42:27,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:42:27,706 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:42:27,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:42:27,707 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 00:42:27,707 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_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2023-11-29 00:42:27,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:42:28,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:42:28,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:42:28,008 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:42:28,009 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:42:28,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2023-11-29 00:42:30,811 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:42:31,076 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:42:31,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2023-11-29 00:42:31,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/data/129ab6537/06fc09ed85844b8794a2406d539b1b90/FLAG3e2fb1506 [2023-11-29 00:42:31,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/data/129ab6537/06fc09ed85844b8794a2406d539b1b90 [2023-11-29 00:42:31,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:42:31,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:42:31,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:42:31,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:42:31,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:42:31,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:31,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d7fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31, skipping insertion in model container [2023-11-29 00:42:31,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:31,181 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:42:31,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:42:31,674 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 00:42:31,693 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:42:31,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:42:31,788 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:42:31,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:42:31,896 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:42:31,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31 WrapperNode [2023-11-29 00:42:31,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:42:31,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:42:31,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:42:31,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:42:31,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:31,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:31,996 INFO L138 Inliner]: procedures = 180, calls = 340, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1123 [2023-11-29 00:42:31,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:42:31,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:42:31,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:42:31,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:42:32,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:32,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:32,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:32,125 INFO L175 MemorySlicer]: Split 319 memory accesses to 4 slices as follows [2, 5, 5, 307]. 96 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 84 writes are split as follows [0, 1, 1, 82]. [2023-11-29 00:42:32,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:32,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:32,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:32,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:32,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:32,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:32,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:42:32,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:42:32,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:42:32,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:42:32,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (1/1) ... [2023-11-29 00:42:32,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:42:32,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:42:32,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:42:32,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:42:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 00:42:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 00:42:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 00:42:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 00:42:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 00:42:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 00:42:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 00:42:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 00:42:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 00:42:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 00:42:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 00:42:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 00:42:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 00:42:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 00:42:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 00:42:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 00:42:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 00:42:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:42:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:42:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 00:42:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 00:42:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 00:42:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 00:42:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:42:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:42:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 00:42:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 00:42:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:42:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 00:42:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 00:42:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 00:42:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 00:42:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 00:42:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 00:42:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 00:42:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 00:42:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:42:32,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:42:32,508 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:42:32,510 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:42:45,740 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:42:45,776 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:42:45,776 INFO L309 CfgBuilder]: Removed 60 assume(true) statements. [2023-11-29 00:42:45,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:42:45 BoogieIcfgContainer [2023-11-29 00:42:45,777 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:42:45,779 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:42:45,780 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:42:45,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:42:45,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:42:31" (1/3) ... [2023-11-29 00:42:45,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5807ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:42:45, skipping insertion in model container [2023-11-29 00:42:45,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:31" (2/3) ... [2023-11-29 00:42:45,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5807ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:42:45, skipping insertion in model container [2023-11-29 00:42:45,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:42:45" (3/3) ... [2023-11-29 00:42:45,786 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test4-1.i [2023-11-29 00:42:45,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:42:45,804 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 00:42:45,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:42:45,861 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;@4c935f68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:42:45,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 00:42:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 183 states have (on average 1.6666666666666667) internal successors, (305), 185 states have internal predecessors, (305), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:42:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 00:42:45,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:42:45,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 00:42:45,874 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:42:45,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:45,879 INFO L85 PathProgramCache]: Analyzing trace with hash 821681, now seen corresponding path program 1 times [2023-11-29 00:42:45,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:42:45,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755353284] [2023-11-29 00:42:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:45,888 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 [2023-11-29 00:42:45,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:42:45,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:42:45,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:42:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:46,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:42:46,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:42:46,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:46,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:42:46,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:42:46,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755353284] [2023-11-29 00:42:46,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755353284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:46,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:46,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 00:42:46,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497438823] [2023-11-29 00:42:46,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:46,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:42:46,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:42:46,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:42:46,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:42:46,174 INFO L87 Difference]: Start difference. First operand has 193 states, 183 states have (on average 1.6666666666666667) internal successors, (305), 185 states have internal predecessors, (305), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:42:50,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:42:54,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:42:55,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:42:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:42:55,915 INFO L93 Difference]: Finished difference Result 204 states and 262 transitions. [2023-11-29 00:42:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:42:55,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 00:42:55,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:42:55,924 INFO L225 Difference]: With dead ends: 204 [2023-11-29 00:42:55,924 INFO L226 Difference]: Without dead ends: 201 [2023-11-29 00:42:55,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:42:55,928 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 15 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:42:55,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 471 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2023-11-29 00:42:55,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-29 00:42:55,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2023-11-29 00:42:55,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 189 states have (on average 1.2857142857142858) internal successors, (243), 190 states have internal predecessors, (243), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:42:55,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 255 transitions. [2023-11-29 00:42:55,965 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 255 transitions. Word has length 3 [2023-11-29 00:42:55,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:42:55,965 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 255 transitions. [2023-11-29 00:42:55,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:42:55,965 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 255 transitions. [2023-11-29 00:42:55,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 00:42:55,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:42:55,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:42:55,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:42:56,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:42:56,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:42:56,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:56,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1796102810, now seen corresponding path program 1 times [2023-11-29 00:42:56,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:42:56,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100918599] [2023-11-29 00:42:56,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:56,169 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 [2023-11-29 00:42:56,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:42:56,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:42:56,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:42:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:56,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:42:56,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:42:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:56,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:42:56,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:42:56,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100918599] [2023-11-29 00:42:56,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100918599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:56,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:56,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:42:56,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466678888] [2023-11-29 00:42:56,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:56,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:42:56,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:42:56,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:42:56,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:42:56,429 INFO L87 Difference]: Start difference. First operand 198 states and 255 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:43:01,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:05,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:11,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:12,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:43:12,249 INFO L93 Difference]: Finished difference Result 318 states and 410 transitions. [2023-11-29 00:43:12,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:43:12,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 00:43:12,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:43:12,254 INFO L225 Difference]: With dead ends: 318 [2023-11-29 00:43:12,254 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 00:43:12,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:43:12,256 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 166 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:43:12,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 646 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2023-11-29 00:43:12,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 00:43:12,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2023-11-29 00:43:12,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 304 states have (on average 1.2828947368421053) internal successors, (390), 305 states have internal predecessors, (390), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:43:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 408 transitions. [2023-11-29 00:43:12,283 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 408 transitions. Word has length 10 [2023-11-29 00:43:12,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:43:12,283 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 408 transitions. [2023-11-29 00:43:12,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:43:12,284 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 408 transitions. [2023-11-29 00:43:12,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 00:43:12,290 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:43:12,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:43:12,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:12,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:12,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:43:12,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:43:12,491 INFO L85 PathProgramCache]: Analyzing trace with hash -374279092, now seen corresponding path program 1 times [2023-11-29 00:43:12,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:43:12,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528648066] [2023-11-29 00:43:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:43:12,493 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 [2023-11-29 00:43:12,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:43:12,494 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:43:12,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:43:13,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:43:13,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:43:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:43:13,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:43:13,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:43:13,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528648066] [2023-11-29 00:43:13,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528648066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:43:13,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:43:13,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:43:13,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201837833] [2023-11-29 00:43:13,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:43:13,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:43:13,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:43:13,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:43:13,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:43:13,205 INFO L87 Difference]: Start difference. First operand 316 states and 408 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:43:13,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:43:13,317 INFO L93 Difference]: Finished difference Result 324 states and 400 transitions. [2023-11-29 00:43:13,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:43:13,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2023-11-29 00:43:13,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:43:13,320 INFO L225 Difference]: With dead ends: 324 [2023-11-29 00:43:13,320 INFO L226 Difference]: Without dead ends: 324 [2023-11-29 00:43:13,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:43:13,321 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 30 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:43:13,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 611 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:43:13,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-11-29 00:43:13,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 322. [2023-11-29 00:43:13,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 310 states have (on average 1.2258064516129032) internal successors, (380), 311 states have internal predecessors, (380), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:43:13,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 398 transitions. [2023-11-29 00:43:13,339 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 398 transitions. Word has length 126 [2023-11-29 00:43:13,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:43:13,340 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 398 transitions. [2023-11-29 00:43:13,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:43:13,340 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 398 transitions. [2023-11-29 00:43:13,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 00:43:13,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:43:13,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:43:13,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 00:43:13,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:13,548 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:43:13,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:43:13,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1989789434, now seen corresponding path program 1 times [2023-11-29 00:43:13,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:43:13,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947082602] [2023-11-29 00:43:13,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:43:13,551 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 [2023-11-29 00:43:13,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:43:13,552 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:43:13,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:43:14,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:43:14,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:43:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:43:14,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:43:14,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:43:14,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947082602] [2023-11-29 00:43:14,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947082602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:43:14,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:43:14,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:43:14,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787991986] [2023-11-29 00:43:14,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:43:14,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:43:14,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:43:14,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:43:14,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:43:14,295 INFO L87 Difference]: Start difference. First operand 322 states and 398 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:43:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:43:14,393 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2023-11-29 00:43:14,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:43:14,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2023-11-29 00:43:14,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:43:14,396 INFO L225 Difference]: With dead ends: 310 [2023-11-29 00:43:14,396 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 00:43:14,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:43:14,398 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 15 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:43:14,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 613 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:43:14,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 00:43:14,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2023-11-29 00:43:14,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 298 states have (on average 1.2080536912751678) internal successors, (360), 299 states have internal predecessors, (360), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:43:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 378 transitions. [2023-11-29 00:43:14,412 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 378 transitions. Word has length 126 [2023-11-29 00:43:14,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:43:14,412 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 378 transitions. [2023-11-29 00:43:14,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:43:14,420 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 378 transitions. [2023-11-29 00:43:14,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 00:43:14,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:43:14,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:43:14,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 00:43:14,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:14,626 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:43:14,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:43:14,627 INFO L85 PathProgramCache]: Analyzing trace with hash 627168514, now seen corresponding path program 1 times [2023-11-29 00:43:14,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:43:14,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239148813] [2023-11-29 00:43:14,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:43:14,628 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 [2023-11-29 00:43:14,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:43:14,629 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:43:14,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:43:15,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:43:15,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:43:15,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:43:15,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:43:15,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:43:15,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239148813] [2023-11-29 00:43:15,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239148813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:43:15,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:43:15,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:43:15,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504772281] [2023-11-29 00:43:15,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:43:15,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:43:15,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:43:15,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:43:15,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:43:15,560 INFO L87 Difference]: Start difference. First operand 310 states and 378 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:43:16,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:43:16,258 INFO L93 Difference]: Finished difference Result 308 states and 375 transitions. [2023-11-29 00:43:16,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:43:16,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2023-11-29 00:43:16,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:43:16,265 INFO L225 Difference]: With dead ends: 308 [2023-11-29 00:43:16,265 INFO L226 Difference]: Without dead ends: 308 [2023-11-29 00:43:16,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:43:16,266 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 7 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:43:16,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 437 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:43:16,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-11-29 00:43:16,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2023-11-29 00:43:16,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 296 states have (on average 1.2060810810810811) internal successors, (357), 297 states have internal predecessors, (357), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:43:16,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 375 transitions. [2023-11-29 00:43:16,278 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 375 transitions. Word has length 126 [2023-11-29 00:43:16,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:43:16,278 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 375 transitions. [2023-11-29 00:43:16,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:43:16,279 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 375 transitions. [2023-11-29 00:43:16,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 00:43:16,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:43:16,281 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:43:16,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 00:43:16,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:16,492 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:43:16,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:43:16,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1001181278, now seen corresponding path program 1 times [2023-11-29 00:43:16,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:43:16,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764179507] [2023-11-29 00:43:16,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:43:16,493 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 [2023-11-29 00:43:16,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:43:16,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:43:16,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:43:17,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:43:17,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:43:17,300 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 00:43:17,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:43:17,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:43:17,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764179507] [2023-11-29 00:43:17,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1764179507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:43:17,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:43:17,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:43:17,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443617928] [2023-11-29 00:43:17,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:43:17,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:43:17,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:43:17,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:43:17,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:43:17,303 INFO L87 Difference]: Start difference. First operand 308 states and 375 transitions. Second operand has 4 states, 3 states have (on average 42.333333333333336) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:43:17,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:43:17,385 INFO L93 Difference]: Finished difference Result 310 states and 380 transitions. [2023-11-29 00:43:17,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:43:17,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 42.333333333333336) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 139 [2023-11-29 00:43:17,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:43:17,389 INFO L225 Difference]: With dead ends: 310 [2023-11-29 00:43:17,389 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 00:43:17,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:43:17,390 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 1 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:43:17,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 665 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:43:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 00:43:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2023-11-29 00:43:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 297 states have (on average 1.2087542087542087) internal successors, (359), 299 states have internal predecessors, (359), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 00:43:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 380 transitions. [2023-11-29 00:43:17,401 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 380 transitions. Word has length 139 [2023-11-29 00:43:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:43:17,402 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 380 transitions. [2023-11-29 00:43:17,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 42.333333333333336) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:43:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 380 transitions. [2023-11-29 00:43:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 00:43:17,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:43:17,405 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:43:17,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 00:43:17,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:17,608 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:43:17,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:43:17,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1655069734, now seen corresponding path program 1 times [2023-11-29 00:43:17,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:43:17,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095845767] [2023-11-29 00:43:17,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:43:17,610 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 [2023-11-29 00:43:17,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:43:17,611 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:43:17,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:43:18,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:43:18,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:43:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 00:43:18,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:43:18,454 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 00:43:18,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:43:18,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095845767] [2023-11-29 00:43:18,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095845767] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:43:18,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:43:18,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 00:43:18,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026240186] [2023-11-29 00:43:18,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:43:18,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:43:18,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:43:18,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:43:18,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:43:18,458 INFO L87 Difference]: Start difference. First operand 310 states and 380 transitions. Second operand has 8 states, 6 states have (on average 22.5) internal successors, (135), 8 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 00:43:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:43:18,713 INFO L93 Difference]: Finished difference Result 319 states and 396 transitions. [2023-11-29 00:43:18,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:43:18,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 22.5) internal successors, (135), 8 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 143 [2023-11-29 00:43:18,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:43:18,717 INFO L225 Difference]: With dead ends: 319 [2023-11-29 00:43:18,717 INFO L226 Difference]: Without dead ends: 319 [2023-11-29 00:43:18,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:43:18,718 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 7 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:43:18,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1096 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:43:18,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-29 00:43:18,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 318. [2023-11-29 00:43:18,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 304 states have (on average 1.2236842105263157) internal successors, (372), 306 states have internal predecessors, (372), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 00:43:18,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 393 transitions. [2023-11-29 00:43:18,727 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 393 transitions. Word has length 143 [2023-11-29 00:43:18,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:43:18,728 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 393 transitions. [2023-11-29 00:43:18,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 22.5) internal successors, (135), 8 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 00:43:18,728 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 393 transitions. [2023-11-29 00:43:18,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 00:43:18,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:43:18,731 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:43:18,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 00:43:18,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:18,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:43:18,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:43:18,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2127322718, now seen corresponding path program 2 times [2023-11-29 00:43:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:43:18,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433573697] [2023-11-29 00:43:18,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:43:18,933 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 [2023-11-29 00:43:18,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:43:18,934 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:43:18,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:19,627 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:43:19,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:43:19,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:43:19,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:43:19,744 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 62 proven. 10 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-29 00:43:19,744 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:43:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 1 proven. 68 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 00:43:19,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:43:19,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433573697] [2023-11-29 00:43:19,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433573697] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:43:19,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:43:19,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 00:43:19,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591230718] [2023-11-29 00:43:19,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:43:19,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:43:19,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:43:19,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:43:19,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:43:19,972 INFO L87 Difference]: Start difference. First operand 318 states and 393 transitions. Second operand has 14 states, 12 states have (on average 11.75) internal successors, (141), 14 states have internal predecessors, (141), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 00:43:20,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:43:20,836 INFO L93 Difference]: Finished difference Result 333 states and 423 transitions. [2023-11-29 00:43:20,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:43:20,837 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 11.75) internal successors, (141), 14 states have internal predecessors, (141), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 151 [2023-11-29 00:43:20,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:43:20,839 INFO L225 Difference]: With dead ends: 333 [2023-11-29 00:43:20,839 INFO L226 Difference]: Without dead ends: 331 [2023-11-29 00:43:20,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 00:43:20,840 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 12 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:43:20,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1535 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:43:20,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-29 00:43:20,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 327. [2023-11-29 00:43:20,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 313 states have (on average 1.2268370607028753) internal successors, (384), 315 states have internal predecessors, (384), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 00:43:20,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 405 transitions. [2023-11-29 00:43:20,852 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 405 transitions. Word has length 151 [2023-11-29 00:43:20,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:43:20,853 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 405 transitions. [2023-11-29 00:43:20,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 11.75) internal successors, (141), 14 states have internal predecessors, (141), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 00:43:20,853 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 405 transitions. [2023-11-29 00:43:20,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 00:43:20,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:43:20,856 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:43:20,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 00:43:21,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:21,056 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:43:21,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:43:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1672775542, now seen corresponding path program 3 times [2023-11-29 00:43:21,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:43:21,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419090334] [2023-11-29 00:43:21,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:43:21,058 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 [2023-11-29 00:43:21,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:43:21,059 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:43:21,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:21,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 00:43:21,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:43:21,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:43:21,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:43:22,008 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2023-11-29 00:43:22,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:43:22,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:43:22,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419090334] [2023-11-29 00:43:22,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419090334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:43:22,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:43:22,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:43:22,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610764608] [2023-11-29 00:43:22,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:43:22,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:43:22,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:43:22,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:43:22,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:43:22,011 INFO L87 Difference]: Start difference. First operand 327 states and 405 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 00:43:26,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:30,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:32,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:36,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:40,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:43,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:46,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:50,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:43:50,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:43:50,768 INFO L93 Difference]: Finished difference Result 335 states and 413 transitions. [2023-11-29 00:43:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:43:50,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 169 [2023-11-29 00:43:50,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:43:50,771 INFO L225 Difference]: With dead ends: 335 [2023-11-29 00:43:50,772 INFO L226 Difference]: Without dead ends: 335 [2023-11-29 00:43:50,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:43:50,772 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 306 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:43:50,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 433 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 126 Invalid, 5 Unknown, 0 Unchecked, 28.7s Time] [2023-11-29 00:43:50,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-11-29 00:43:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 328. [2023-11-29 00:43:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 314 states have (on average 1.2229299363057324) internal successors, (384), 316 states have internal predecessors, (384), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 00:43:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 405 transitions. [2023-11-29 00:43:50,784 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 405 transitions. Word has length 169 [2023-11-29 00:43:50,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:43:50,784 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 405 transitions. [2023-11-29 00:43:50,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 00:43:50,785 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 405 transitions. [2023-11-29 00:43:50,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 00:43:50,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:43:50,787 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:43:50,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 00:43:50,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:50,988 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:43:50,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:43:50,988 INFO L85 PathProgramCache]: Analyzing trace with hash -816057293, now seen corresponding path program 1 times [2023-11-29 00:43:50,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:43:50,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623974206] [2023-11-29 00:43:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:43:50,989 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 [2023-11-29 00:43:50,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:43:50,990 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:43:50,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 00:43:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:43:51,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:43:51,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:43:52,041 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 260 proven. 55 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-11-29 00:43:52,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:43:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 1 proven. 311 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-11-29 00:43:52,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:43:52,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623974206] [2023-11-29 00:43:52,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623974206] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:43:52,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:43:52,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 00:43:52,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033981321] [2023-11-29 00:43:52,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:43:52,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 00:43:52,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:43:52,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 00:43:52,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:43:52,648 INFO L87 Difference]: Start difference. First operand 328 states and 405 transitions. Second operand has 26 states, 24 states have (on average 6.5) internal successors, (156), 26 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 00:43:55,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:43:55,586 INFO L93 Difference]: Finished difference Result 358 states and 471 transitions. [2023-11-29 00:43:55,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 00:43:55,587 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 6.5) internal successors, (156), 26 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 172 [2023-11-29 00:43:55,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:43:55,590 INFO L225 Difference]: With dead ends: 358 [2023-11-29 00:43:55,590 INFO L226 Difference]: Without dead ends: 356 [2023-11-29 00:43:55,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 00:43:55,592 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 25 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:43:55,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2634 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 00:43:55,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-29 00:43:55,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 346. [2023-11-29 00:43:55,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 332 states have (on average 1.2289156626506024) internal successors, (408), 334 states have internal predecessors, (408), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 00:43:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 429 transitions. [2023-11-29 00:43:55,609 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 429 transitions. Word has length 172 [2023-11-29 00:43:55,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:43:55,609 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 429 transitions. [2023-11-29 00:43:55,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 6.5) internal successors, (156), 26 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 00:43:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 429 transitions. [2023-11-29 00:43:55,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 00:43:55,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:43:55,613 INFO L195 NwaCegarLoop]: trace histogram [66, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:43:55,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 00:43:55,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:43:55,813 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:43:55,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:43:55,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1007534387, now seen corresponding path program 2 times [2023-11-29 00:43:55,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:43:55,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67437968] [2023-11-29 00:43:55,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:43:55,815 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 [2023-11-29 00:43:55,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:43:55,816 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:43:55,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 00:43:56,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:43:56,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:43:56,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 00:43:56,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:43:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 1088 proven. 253 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2023-11-29 00:43:57,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:43:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 1 proven. 1337 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2023-11-29 00:43:59,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:43:59,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67437968] [2023-11-29 00:43:59,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67437968] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:43:59,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:43:59,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 00:43:59,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512978406] [2023-11-29 00:43:59,690 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:43:59,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 00:43:59,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:43:59,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 00:43:59,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 00:43:59,693 INFO L87 Difference]: Start difference. First operand 346 states and 429 transitions. Second operand has 50 states, 48 states have (on average 3.75) internal successors, (180), 50 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 00:44:10,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:44:10,699 INFO L93 Difference]: Finished difference Result 404 states and 563 transitions. [2023-11-29 00:44:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 00:44:10,700 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.75) internal successors, (180), 50 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 208 [2023-11-29 00:44:10,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:44:10,703 INFO L225 Difference]: With dead ends: 404 [2023-11-29 00:44:10,703 INFO L226 Difference]: Without dead ends: 402 [2023-11-29 00:44:10,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 00:44:10,708 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 49 mSDsluCounter, 5256 mSDsCounter, 0 mSdLazyCounter, 3113 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 5479 SdHoareTripleChecker+Invalid, 3223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 3113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:44:10,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 5479 Invalid, 3223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 3113 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-29 00:44:10,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-29 00:44:10,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 380. [2023-11-29 00:44:10,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 366 states have (on average 1.2404371584699454) internal successors, (454), 368 states have internal predecessors, (454), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 00:44:10,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 475 transitions. [2023-11-29 00:44:10,725 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 475 transitions. Word has length 208 [2023-11-29 00:44:10,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:44:10,725 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 475 transitions. [2023-11-29 00:44:10,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.75) internal successors, (180), 50 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 00:44:10,726 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 475 transitions. [2023-11-29 00:44:10,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-11-29 00:44:10,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:44:10,728 INFO L195 NwaCegarLoop]: trace histogram [134, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:44:10,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 00:44:10,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:44:10,928 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:44:10,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:44:10,929 INFO L85 PathProgramCache]: Analyzing trace with hash 564055603, now seen corresponding path program 3 times [2023-11-29 00:44:10,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:44:10,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395008398] [2023-11-29 00:44:10,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:44:10,930 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 [2023-11-29 00:44:10,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:44:10,931 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:44:10,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 00:44:15,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2023-11-29 00:44:15,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:44:15,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 00:44:15,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:44:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9466 backedges. 2740 proven. 276 refuted. 0 times theorem prover too weak. 6450 trivial. 0 not checked. [2023-11-29 00:44:16,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:44:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 9466 backedges. 2740 proven. 276 refuted. 0 times theorem prover too weak. 6450 trivial. 0 not checked. [2023-11-29 00:44:19,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:44:19,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395008398] [2023-11-29 00:44:19,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395008398] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:44:19,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:44:19,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 00:44:19,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721741363] [2023-11-29 00:44:19,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:44:19,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 00:44:19,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:44:19,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 00:44:19,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 00:44:19,256 INFO L87 Difference]: Start difference. First operand 380 states and 475 transitions. Second operand has 52 states, 50 states have (on average 3.58) internal successors, (179), 52 states have internal predecessors, (179), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 00:44:31,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:44:31,851 INFO L93 Difference]: Finished difference Result 429 states and 594 transitions. [2023-11-29 00:44:31,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-11-29 00:44:31,852 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.58) internal successors, (179), 52 states have internal predecessors, (179), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 276 [2023-11-29 00:44:31,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:44:31,855 INFO L225 Difference]: With dead ends: 429 [2023-11-29 00:44:31,855 INFO L226 Difference]: Without dead ends: 428 [2023-11-29 00:44:31,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1775 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=3276, Invalid=6824, Unknown=0, NotChecked=0, Total=10100 [2023-11-29 00:44:31,859 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 55 mSDsluCounter, 5160 mSDsCounter, 0 mSdLazyCounter, 2672 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 5380 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:44:31,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 5380 Invalid, 2751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2672 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-29 00:44:31,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-11-29 00:44:31,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 405. [2023-11-29 00:44:31,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 391 states have (on average 1.2864450127877238) internal successors, (503), 393 states have internal predecessors, (503), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 00:44:31,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 524 transitions. [2023-11-29 00:44:31,874 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 524 transitions. Word has length 276 [2023-11-29 00:44:31,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:44:31,874 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 524 transitions. [2023-11-29 00:44:31,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.58) internal successors, (179), 52 states have internal predecessors, (179), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 00:44:31,875 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 524 transitions. [2023-11-29 00:44:31,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-11-29 00:44:31,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:44:31,877 INFO L195 NwaCegarLoop]: trace histogram [184, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:44:31,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 00:44:32,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:44:32,078 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:44:32,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:44:32,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1696872825, now seen corresponding path program 4 times [2023-11-29 00:44:32,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:44:32,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454341105] [2023-11-29 00:44:32,081 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:44:32,081 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 [2023-11-29 00:44:32,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:44:32,082 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:44:32,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 (14)] Waiting until timeout for monitored process [2023-11-29 00:44:34,590 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:44:34,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:44:34,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 2789 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-29 00:44:34,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:44:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 17591 backedges. 11051 proven. 1176 refuted. 0 times theorem prover too weak. 5364 trivial. 0 not checked. [2023-11-29 00:44:36,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:44:45,021 INFO L134 CoverageAnalysis]: Checked inductivity of 17591 backedges. 2207 proven. 5784 refuted. 0 times theorem prover too weak. 9600 trivial. 0 not checked. [2023-11-29 00:44:45,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:44:45,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454341105] [2023-11-29 00:44:45,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454341105] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:44:45,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:44:45,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-29 00:44:45,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512382700] [2023-11-29 00:44:45,022 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:44:45,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 00:44:45,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:44:45,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 00:44:45,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 00:44:45,028 INFO L87 Difference]: Start difference. First operand 405 states and 524 transitions. Second operand has 102 states, 100 states have (on average 2.32) internal successors, (232), 102 states have internal predecessors, (232), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 00:45:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:45:40,837 INFO L93 Difference]: Finished difference Result 511 states and 787 transitions. [2023-11-29 00:45:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 00:45:40,838 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.32) internal successors, (232), 102 states have internal predecessors, (232), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 326 [2023-11-29 00:45:40,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:45:40,841 INFO L225 Difference]: With dead ends: 511 [2023-11-29 00:45:40,842 INFO L226 Difference]: Without dead ends: 511 [2023-11-29 00:45:40,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 44.8s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 00:45:40,851 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 163 mSDsluCounter, 10634 mSDsCounter, 0 mSdLazyCounter, 10546 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 10856 SdHoareTripleChecker+Invalid, 10639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 10546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:45:40,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 10856 Invalid, 10639 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [93 Valid, 10546 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2023-11-29 00:45:40,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2023-11-29 00:45:40,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 459. [2023-11-29 00:45:40,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 445 states have (on average 1.3707865168539326) internal successors, (610), 447 states have internal predecessors, (610), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 00:45:40,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 631 transitions. [2023-11-29 00:45:40,872 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 631 transitions. Word has length 326 [2023-11-29 00:45:40,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:45:40,873 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 631 transitions. [2023-11-29 00:45:40,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.32) internal successors, (232), 102 states have internal predecessors, (232), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 00:45:40,873 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 631 transitions. [2023-11-29 00:45:40,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-11-29 00:45:40,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:45:40,877 INFO L195 NwaCegarLoop]: trace histogram [284, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:45:40,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 (14)] Ended with exit code 0 [2023-11-29 00:45:41,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:45:41,078 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:45:41,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:45:41,078 INFO L85 PathProgramCache]: Analyzing trace with hash -539105657, now seen corresponding path program 5 times [2023-11-29 00:45:41,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:45:41,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015433385] [2023-11-29 00:45:41,080 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 00:45:41,080 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 [2023-11-29 00:45:41,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:45:41,081 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:45:41,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 (15)] Waiting until timeout for monitored process [2023-11-29 00:45:48,633 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 50 check-sat command(s) [2023-11-29 00:45:48,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:45:48,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 102 conjunts are in the unsatisfiable core [2023-11-29 00:45:48,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:45:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 41341 backedges. 25201 proven. 4851 refuted. 0 times theorem prover too weak. 11289 trivial. 0 not checked. [2023-11-29 00:45:58,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:43,220 INFO L134 CoverageAnalysis]: Checked inductivity of 41341 backedges. 4457 proven. 19109 refuted. 0 times theorem prover too weak. 17775 trivial. 0 not checked. [2023-11-29 00:46:43,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:46:43,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015433385] [2023-11-29 00:46:43,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015433385] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:43,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:43,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 202 [2023-11-29 00:46:43,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768968885] [2023-11-29 00:46:43,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:43,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2023-11-29 00:46:43,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:46:43,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2023-11-29 00:46:43,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10401, Invalid=30201, Unknown=0, NotChecked=0, Total=40602 [2023-11-29 00:46:43,233 INFO L87 Difference]: Start difference. First operand 459 states and 631 transitions. Second operand has 202 states, 200 states have (on average 1.66) internal successors, (332), 202 states have internal predecessors, (332), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 00:53:25,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:25,179 INFO L93 Difference]: Finished difference Result 661 states and 1134 transitions. [2023-11-29 00:53:25,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2023-11-29 00:53:25,180 INFO L78 Accepts]: Start accepts. Automaton has has 202 states, 200 states have (on average 1.66) internal successors, (332), 202 states have internal predecessors, (332), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 426 [2023-11-29 00:53:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:25,185 INFO L225 Difference]: With dead ends: 661 [2023-11-29 00:53:25,185 INFO L226 Difference]: Without dead ends: 660 [2023-11-29 00:53:25,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 398 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29304 ImplicationChecksByTransitivity, 338.0s TimeCoverageRelationStatistics Valid=50398, Invalid=109202, Unknown=0, NotChecked=0, Total=159600 [2023-11-29 00:53:25,197 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 156 mSDsluCounter, 21719 mSDsCounter, 0 mSdLazyCounter, 41614 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 21939 SdHoareTripleChecker+Invalid, 41835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 41614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:25,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 21939 Invalid, 41835 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [221 Valid, 41614 Invalid, 0 Unknown, 0 Unchecked, 109.0s Time] [2023-11-29 00:53:25,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2023-11-29 00:53:25,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 559. [2023-11-29 00:53:25,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 545 states have (on average 1.4844036697247707) internal successors, (809), 547 states have internal predecessors, (809), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 00:53:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 830 transitions. [2023-11-29 00:53:25,272 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 830 transitions. Word has length 426 [2023-11-29 00:53:25,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:25,273 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 830 transitions. [2023-11-29 00:53:25,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 202 states, 200 states have (on average 1.66) internal successors, (332), 202 states have internal predecessors, (332), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 00:53:25,274 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 830 transitions. [2023-11-29 00:53:25,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2023-11-29 00:53:25,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:25,281 INFO L195 NwaCegarLoop]: trace histogram [484, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:25,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 (15)] Ended with exit code 0 [2023-11-29 00:53:25,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:25,481 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:53:25,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:25,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1178617479, now seen corresponding path program 6 times [2023-11-29 00:53:25,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:25,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083626018] [2023-11-29 00:53:25,484 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 00:53:25,485 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 [2023-11-29 00:53:25,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:25,486 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:53:25,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c6a706-d628-41b0-a075-b35ff602c2cf/bin/uautomizer-verify-BQ2R08f2Ya/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 (16)] Waiting until timeout for monitored process