./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67d7a8078c463999fbe6676df51bd105d1b2c9209543e9e47ea1846fac277ca0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:58:00,838 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:58:00,956 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-19 04:58:00,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:58:00,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:58:01,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:58:01,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:58:01,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:58:01,005 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:58:01,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:58:01,011 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:58:01,011 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:58:01,012 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:58:01,014 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:58:01,014 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:58:01,014 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:58:01,015 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:58:01,015 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:58:01,016 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:58:01,016 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:58:01,017 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:58:01,018 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:58:01,018 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:58:01,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:58:01,020 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:58:01,020 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:58:01,021 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:58:01,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:58:01,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:58:01,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:58:01,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:58:01,024 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:58:01,024 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:58:01,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:58:01,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:58:01,025 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:58:01,025 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:58:01,025 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:58:01,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:58:01,026 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:58:01,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:58:01,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:58:01,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:58:01,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:58:01,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:58:01,030 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:58:01,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:58:01,030 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:58:01,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:58:01,031 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d7a8078c463999fbe6676df51bd105d1b2c9209543e9e47ea1846fac277ca0 [2023-11-19 04:58:01,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:58:01,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:58:01,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:58:01,393 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:58:01,394 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:58:01,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2023-11-19 04:58:04,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:58:04,893 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:58:04,894 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2023-11-19 04:58:04,920 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/data/e0743a9ac/f33a22c1d2844de7b2f9e8fc07094f1e/FLAG3ea58bcf3 [2023-11-19 04:58:04,934 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/data/e0743a9ac/f33a22c1d2844de7b2f9e8fc07094f1e [2023-11-19 04:58:04,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:58:04,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:58:04,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:58:04,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:58:04,946 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:58:04,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:04" (1/1) ... [2023-11-19 04:58:04,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1393991d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04, skipping insertion in model container [2023-11-19 04:58:04,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:04" (1/1) ... [2023-11-19 04:58:05,024 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:58:05,289 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:58:05,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:58:05,587 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 04:58:05,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@461be641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:05, skipping insertion in model container [2023-11-19 04:58:05,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:58:05,591 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 04:58:05,594 INFO L158 Benchmark]: Toolchain (without parser) took 654.30ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 88.7MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:58:05,594 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:58:05,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.62ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 88.7MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:58:05,597 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.62ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 88.7MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. 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_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67d7a8078c463999fbe6676df51bd105d1b2c9209543e9e47ea1846fac277ca0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:58:08,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:58:08,088 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-11-19 04:58:08,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:58:08,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:58:08,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:58:08,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:58:08,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:58:08,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:58:08,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:58:08,133 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:58:08,133 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:58:08,134 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:58:08,136 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:58:08,137 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:58:08,138 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:58:08,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:58:08,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:58:08,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:58:08,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:58:08,145 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:58:08,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:58:08,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:58:08,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:58:08,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:58:08,148 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:58:08,148 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:58:08,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:58:08,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:58:08,149 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:58:08,151 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:58:08,152 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:58:08,152 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:58:08,152 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:58:08,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:58:08,153 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:58:08,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:58:08,154 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:58:08,154 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:58:08,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:58:08,155 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:58:08,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:58:08,155 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:58:08,156 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:58:08,156 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:58:08,156 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:58:08,157 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d7a8078c463999fbe6676df51bd105d1b2c9209543e9e47ea1846fac277ca0 [2023-11-19 04:58:08,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:58:08,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:58:08,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:58:08,636 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:58:08,638 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:58:08,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2023-11-19 04:58:11,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:58:12,305 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:58:12,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2023-11-19 04:58:12,331 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/data/db3a5a329/40a5eaa16d794f269c6b72f25583231b/FLAG025359487 [2023-11-19 04:58:12,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/data/db3a5a329/40a5eaa16d794f269c6b72f25583231b [2023-11-19 04:58:12,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:58:12,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:58:12,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:58:12,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:58:12,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:58:12,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:12" (1/1) ... [2023-11-19 04:58:12,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d36f1b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:12, skipping insertion in model container [2023-11-19 04:58:12,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:12" (1/1) ... [2023-11-19 04:58:12,475 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:58:12,781 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:58:13,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:58:13,133 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 04:58:13,154 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:58:13,174 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:58:13,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:58:13,289 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:58:13,306 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:58:13,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:58:13,430 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:58:13,438 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:58:13,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13 WrapperNode [2023-11-19 04:58:13,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:58:13,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:58:13,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:58:13,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:58:13,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,553 INFO L138 Inliner]: procedures = 181, calls = 341, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1123 [2023-11-19 04:58:13,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:58:13,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:58:13,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:58:13,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:58:13,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:58:13,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:58:13,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:58:13,728 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:58:13,729 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:58:13,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:58:13,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:58:13,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:58:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 04:58:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:58:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:58:13,804 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:58:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:58:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:58:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:58:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:58:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:58:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:58:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:58:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:58:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:58:13,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:58:14,043 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:58:14,045 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:58:27,776 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:58:27,787 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:58:27,787 INFO L302 CfgBuilder]: Removed 60 assume(true) statements. [2023-11-19 04:58:27,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:27 BoogieIcfgContainer [2023-11-19 04:58:27,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:58:27,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:58:27,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:58:27,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:58:27,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:58:12" (1/3) ... [2023-11-19 04:58:27,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a3ee7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:58:27, skipping insertion in model container [2023-11-19 04:58:27,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13" (2/3) ... [2023-11-19 04:58:27,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a3ee7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:58:27, skipping insertion in model container [2023-11-19 04:58:27,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:27" (3/3) ... [2023-11-19 04:58:27,802 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test4-1.i [2023-11-19 04:58:27,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:58:27,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:58:27,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:58:27,879 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=FINITE_AUTOMATA, 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;@7ba46e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:58:27,880 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:58:27,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 187 states have (on average 1.6524064171122994) internal successors, (309), 189 states have internal predecessors, (309), 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) [2023-11-19 04:58:27,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:58:27,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:27,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:58:27,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:58:27,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:27,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1172639, now seen corresponding path program 1 times [2023-11-19 04:58:27,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:58:27,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729910308] [2023-11-19 04:58:27,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:27,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:27,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:58:27,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:58:27,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:58:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:28,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:58:28,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:28,160 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:58:28,161 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:58:28,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729910308] [2023-11-19 04:58:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729910308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:28,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:28,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:58:28,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570416395] [2023-11-19 04:58:28,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:28,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:28,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:58:28,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:28,223 INFO L87 Difference]: Start difference. First operand has 197 states, 187 states have (on average 1.6524064171122994) internal successors, (309), 189 states have internal predecessors, (309), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:30,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:32,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:33,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:33,770 INFO L93 Difference]: Finished difference Result 209 states and 267 transitions. [2023-11-19 04:58:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:33,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 04:58:33,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:33,784 INFO L225 Difference]: With dead ends: 209 [2023-11-19 04:58:33,785 INFO L226 Difference]: Without dead ends: 205 [2023-11-19 04:58:33,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:33,790 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 17 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:33,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 482 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2023-11-19 04:58:33,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-19 04:58:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 202. [2023-11-19 04:58:33,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 193 states have (on average 1.2797927461139897) internal successors, (247), 194 states have internal predecessors, (247), 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) [2023-11-19 04:58:33,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 259 transitions. [2023-11-19 04:58:33,858 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 259 transitions. Word has length 4 [2023-11-19 04:58:33,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:33,858 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 259 transitions. [2023-11-19 04:58:33,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:33,859 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 259 transitions. [2023-11-19 04:58:33,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:58:33,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:33,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:33,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 04:58:34,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:34,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:58:34,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:34,070 INFO L85 PathProgramCache]: Analyzing trace with hash 310602656, now seen corresponding path program 1 times [2023-11-19 04:58:34,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:58:34,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118252421] [2023-11-19 04:58:34,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:34,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:34,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:58:34,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:58:34,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:58:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:34,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:58:34,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:34,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:58:34,379 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:58:34,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118252421] [2023-11-19 04:58:34,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118252421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:34,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:34,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:58:34,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471064536] [2023-11-19 04:58:34,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:34,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:58:34,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:58:34,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:58:34,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:58:34,382 INFO L87 Difference]: Start difference. First operand 202 states and 259 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:37,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:39,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:43,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:45,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:46,160 INFO L93 Difference]: Finished difference Result 321 states and 413 transitions. [2023-11-19 04:58:46,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:58:46,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2023-11-19 04:58:46,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:46,167 INFO L225 Difference]: With dead ends: 321 [2023-11-19 04:58:46,167 INFO L226 Difference]: Without dead ends: 319 [2023-11-19 04:58:46,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:46,169 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 166 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:46,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 661 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2023-11-19 04:58:46,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-19 04:58:46,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-11-19 04:58:46,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 307 states have (on average 1.280130293159609) internal successors, (393), 308 states have internal predecessors, (393), 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) [2023-11-19 04:58:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 411 transitions. [2023-11-19 04:58:46,205 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 411 transitions. Word has length 11 [2023-11-19 04:58:46,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:46,206 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 411 transitions. [2023-11-19 04:58:46,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:46,206 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 411 transitions. [2023-11-19 04:58:46,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 04:58:46,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:46,214 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:46,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:58:46,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:46,415 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:58:46,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:46,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1638652318, now seen corresponding path program 1 times [2023-11-19 04:58:46,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:58:46,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464711794] [2023-11-19 04:58:46,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:46,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:46,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:58:46,420 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:58:46,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:58:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:47,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:58:47,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 04:58:47,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:58:47,275 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:58:47,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464711794] [2023-11-19 04:58:47,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464711794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:47,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:47,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:58:47,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655704253] [2023-11-19 04:58:47,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:47,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:58:47,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:58:47,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:58:47,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:58:47,279 INFO L87 Difference]: Start difference. First operand 319 states and 411 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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) [2023-11-19 04:58:47,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:47,421 INFO L93 Difference]: Finished difference Result 327 states and 403 transitions. [2023-11-19 04:58:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:58:47,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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 129 [2023-11-19 04:58:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:47,429 INFO L225 Difference]: With dead ends: 327 [2023-11-19 04:58:47,429 INFO L226 Difference]: Without dead ends: 327 [2023-11-19 04:58:47,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:47,439 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 43 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:47,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 628 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:58:47,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-19 04:58:47,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2023-11-19 04:58:47,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 313 states have (on average 1.2236421725239617) internal successors, (383), 314 states have internal predecessors, (383), 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) [2023-11-19 04:58:47,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 401 transitions. [2023-11-19 04:58:47,465 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 401 transitions. Word has length 129 [2023-11-19 04:58:47,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:47,466 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 401 transitions. [2023-11-19 04:58:47,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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) [2023-11-19 04:58:47,466 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 401 transitions. [2023-11-19 04:58:47,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 04:58:47,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:47,474 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:47,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:58:47,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:47,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:58:47,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1782265456, now seen corresponding path program 1 times [2023-11-19 04:58:47,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:58:47,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765519468] [2023-11-19 04:58:47,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:47,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:47,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:58:47,685 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:58:47,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 04:58:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:48,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:58:48,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:48,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 04:58:48,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:58:48,663 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:58:48,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765519468] [2023-11-19 04:58:48,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765519468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:48,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:48,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:58:48,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625358941] [2023-11-19 04:58:48,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:48,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:58:48,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:58:48,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:58:48,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:48,679 INFO L87 Difference]: Start difference. First operand 325 states and 401 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2023-11-19 04:58:48,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:48,814 INFO L93 Difference]: Finished difference Result 313 states and 381 transitions. [2023-11-19 04:58:48,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:58:48,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 129 [2023-11-19 04:58:48,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:48,817 INFO L225 Difference]: With dead ends: 313 [2023-11-19 04:58:48,818 INFO L226 Difference]: Without dead ends: 313 [2023-11-19 04:58:48,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:48,819 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 6 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:48,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 835 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:58:48,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-19 04:58:48,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2023-11-19 04:58:48,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 301 states have (on average 1.2059800664451827) internal successors, (363), 302 states have internal predecessors, (363), 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) [2023-11-19 04:58:48,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 381 transitions. [2023-11-19 04:58:48,838 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 381 transitions. Word has length 129 [2023-11-19 04:58:48,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:48,839 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 381 transitions. [2023-11-19 04:58:48,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2023-11-19 04:58:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 381 transitions. [2023-11-19 04:58:48,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 04:58:48,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:48,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:48,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:58:49,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:49,058 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:58:49,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:49,058 INFO L85 PathProgramCache]: Analyzing trace with hash 93349718, now seen corresponding path program 1 times [2023-11-19 04:58:49,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:58:49,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899563098] [2023-11-19 04:58:49,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:49,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:49,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:58:49,061 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:58:49,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 04:58:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:49,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:58:49,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 04:58:50,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:58:50,274 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:58:50,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899563098] [2023-11-19 04:58:50,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899563098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:50,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:50,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:58:50,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040613188] [2023-11-19 04:58:50,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:50,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:50,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:58:50,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:50,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:50,277 INFO L87 Difference]: Start difference. First operand 313 states and 381 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2023-11-19 04:58:51,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:51,041 INFO L93 Difference]: Finished difference Result 311 states and 378 transitions. [2023-11-19 04:58:51,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:51,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 129 [2023-11-19 04:58:51,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:51,057 INFO L225 Difference]: With dead ends: 311 [2023-11-19 04:58:51,057 INFO L226 Difference]: Without dead ends: 311 [2023-11-19 04:58:51,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:51,058 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 7 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:51,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 448 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:58:51,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-19 04:58:51,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2023-11-19 04:58:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 299 states have (on average 1.2040133779264215) internal successors, (360), 300 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) [2023-11-19 04:58:51,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 378 transitions. [2023-11-19 04:58:51,072 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 378 transitions. Word has length 129 [2023-11-19 04:58:51,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:51,075 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 378 transitions. [2023-11-19 04:58:51,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2023-11-19 04:58:51,075 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 378 transitions. [2023-11-19 04:58:51,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-19 04:58:51,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:51,083 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, 1] [2023-11-19 04:58:51,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-19 04:58:51,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:51,295 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:58:51,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:51,296 INFO L85 PathProgramCache]: Analyzing trace with hash -166389882, now seen corresponding path program 1 times [2023-11-19 04:58:51,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:58:51,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936611675] [2023-11-19 04:58:51,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:51,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:51,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:58:51,307 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:58:51,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 04:58:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:52,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:58:52,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:52,287 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 04:58:52,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:58:52,287 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:58:52,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936611675] [2023-11-19 04:58:52,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936611675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:52,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:52,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:58:52,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128057826] [2023-11-19 04:58:52,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:52,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:58:52,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:58:52,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:58:52,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:58:52,290 INFO L87 Difference]: Start difference. First operand 311 states and 378 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2023-11-19 04:58:52,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:52,394 INFO L93 Difference]: Finished difference Result 314 states and 384 transitions. [2023-11-19 04:58:52,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:58:52,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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 144 [2023-11-19 04:58:52,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:52,399 INFO L225 Difference]: With dead ends: 314 [2023-11-19 04:58:52,399 INFO L226 Difference]: Without dead ends: 314 [2023-11-19 04:58:52,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:52,401 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 2 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:52,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 680 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:58:52,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-19 04:58:52,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2023-11-19 04:58:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 301 states have (on average 1.2059800664451827) internal successors, (363), 303 states have internal predecessors, (363), 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) [2023-11-19 04:58:52,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 384 transitions. [2023-11-19 04:58:52,416 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 384 transitions. Word has length 144 [2023-11-19 04:58:52,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:52,417 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 384 transitions. [2023-11-19 04:58:52,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2023-11-19 04:58:52,417 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 384 transitions. [2023-11-19 04:58:52,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 04:58:52,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:52,420 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1] [2023-11-19 04:58:52,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 04:58:52,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:52,633 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:58:52,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:52,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1701915906, now seen corresponding path program 1 times [2023-11-19 04:58:52,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:58:52,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688355559] [2023-11-19 04:58:52,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:52,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:52,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:58:52,637 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:58:52,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-19 04:58:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:53,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:58:53,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 04:58:53,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:58:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 04:58:53,814 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:58:53,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688355559] [2023-11-19 04:58:53,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [688355559] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:58:53,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1336879134] [2023-11-19 04:58:53,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:53,815 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:58:53,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:58:53,858 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:58:53,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 04:58:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:54,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:58:54,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:55,080 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:58:55,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:58:55,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1336879134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:55,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:58:55,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2023-11-19 04:58:55,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233949130] [2023-11-19 04:58:55,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:55,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:55,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:58:55,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:55,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:58:55,083 INFO L87 Difference]: Start difference. First operand 314 states and 384 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 04:58:55,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:55,221 INFO L93 Difference]: Finished difference Result 356 states and 426 transitions. [2023-11-19 04:58:55,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:55,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 148 [2023-11-19 04:58:55,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:55,233 INFO L225 Difference]: With dead ends: 356 [2023-11-19 04:58:55,234 INFO L226 Difference]: Without dead ends: 356 [2023-11-19 04:58:55,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:58:55,235 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 5 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:55,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 411 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:58:55,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-19 04:58:55,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 354. [2023-11-19 04:58:55,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 341 states have (on average 1.1818181818181819) internal successors, (403), 343 states have internal predecessors, (403), 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) [2023-11-19 04:58:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 424 transitions. [2023-11-19 04:58:55,256 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 424 transitions. Word has length 148 [2023-11-19 04:58:55,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:55,257 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 424 transitions. [2023-11-19 04:58:55,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 04:58:55,258 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 424 transitions. [2023-11-19 04:58:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 04:58:55,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:55,260 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1] [2023-11-19 04:58:55,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-11-19 04:58:55,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-19 04:58:55,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:55,666 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:58:55,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:55,667 INFO L85 PathProgramCache]: Analyzing trace with hash 440998656, now seen corresponding path program 1 times [2023-11-19 04:58:55,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:58:55,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684299865] [2023-11-19 04:58:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:55,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:55,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:58:55,669 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:58:55,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-19 04:58:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:56,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:58:56,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:56,740 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 04:58:56,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:58:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 04:58:56,910 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:58:56,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684299865] [2023-11-19 04:58:56,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684299865] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:58:56,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [778985760] [2023-11-19 04:58:56,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:56,911 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:58:56,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:58:56,913 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:58:56,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 04:58:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:58,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:58:58,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:58,165 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:58:58,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:58:58,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [778985760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:58,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:58:58,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2023-11-19 04:58:58,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192493541] [2023-11-19 04:58:58,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:58,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:58:58,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:58:58,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:58:58,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-19 04:58:58,169 INFO L87 Difference]: Start difference. First operand 354 states and 424 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 04:58:58,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:58,340 INFO L93 Difference]: Finished difference Result 322 states and 370 transitions. [2023-11-19 04:58:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:58:58,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 148 [2023-11-19 04:58:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:58,343 INFO L225 Difference]: With dead ends: 322 [2023-11-19 04:58:58,344 INFO L226 Difference]: Without dead ends: 322 [2023-11-19 04:58:58,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:58:58,345 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 39 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:58,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 583 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:58:58,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-19 04:58:58,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 320. [2023-11-19 04:58:58,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 307 states have (on average 1.1302931596091206) internal successors, (347), 309 states have internal predecessors, (347), 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) [2023-11-19 04:58:58,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 368 transitions. [2023-11-19 04:58:58,358 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 368 transitions. Word has length 148 [2023-11-19 04:58:58,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:58,359 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 368 transitions. [2023-11-19 04:58:58,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 04:58:58,360 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 368 transitions. [2023-11-19 04:58:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 04:58:58,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:58,362 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1] [2023-11-19 04:58:58,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-19 04:58:58,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 04:58:58,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 04:58:58,785 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:58:58,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:58,786 INFO L85 PathProgramCache]: Analyzing trace with hash 411833998, now seen corresponding path program 1 times [2023-11-19 04:58:58,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:58:58,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223907102] [2023-11-19 04:58:58,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:58,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:58:58,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:58:58,788 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:58:58,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-19 04:58:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:59,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:58:59,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:59,833 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 04:58:59,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:58:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 04:58:59,966 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:58:59,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223907102] [2023-11-19 04:58:59,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223907102] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:58:59,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [904674085] [2023-11-19 04:58:59,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:59,967 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:58:59,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:58:59,969 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:59:00,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fd302e-1d90-4fb0-ba1b-a82cb7d0b4c5/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process