./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 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_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje --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 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:14:43,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:14:43,946 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 07:14:43,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:14:43,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:14:44,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:14:44,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:14:44,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:14:44,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:14:44,008 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:14:44,010 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:14:44,010 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:14:44,011 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:14:44,011 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:14:44,012 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:14:44,014 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:14:44,014 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:14:44,015 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:14:44,015 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:14:44,016 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:14:44,016 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:14:44,020 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:14:44,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:14:44,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:14:44,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:14:44,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:14:44,022 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:14:44,022 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:14:44,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:14:44,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:14:44,023 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:14:44,024 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 07:14:44,024 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 07:14:44,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:14:44,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:14:44,026 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:14:44,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:14:44,027 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:14:44,027 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:14:44,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:14:44,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:14:44,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:14:44,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:14:44,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:14:44,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:14:44,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:14:44,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:14:44,030 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:14:44,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:14:44,031 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:14:44,031 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:14:44,031 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:14:44,032 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_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 [2024-11-09 07:14:44,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:14:44,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:14:44,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:14:44,410 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:14:44,411 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:14:44,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i Unable to find full path for "g++" [2024-11-09 07:14:46,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:14:46,773 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:14:46,773 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2024-11-09 07:14:46,789 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/data/20fbfdf0d/9ed89e19b6b54be8b55f5d939425240a/FLAGf6da0428f [2024-11-09 07:14:46,977 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/data/20fbfdf0d/9ed89e19b6b54be8b55f5d939425240a [2024-11-09 07:14:46,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:14:46,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:14:46,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:14:46,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:14:46,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:14:46,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:14:46" (1/1) ... [2024-11-09 07:14:46,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb2c71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:46, skipping insertion in model container [2024-11-09 07:14:46,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:14:46" (1/1) ... [2024-11-09 07:14:47,071 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:14:47,630 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,692 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,700 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,704 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,714 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,776 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,778 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,785 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,786 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,791 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,793 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,797 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,798 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,803 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:47,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:14:47,829 ERROR L321 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) [2024-11-09 07:14:47,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21325ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:47, skipping insertion in model container [2024-11-09 07:14:47,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:14:47,830 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 07:14:47,832 INFO L158 Benchmark]: Toolchain (without parser) took 850.36ms. Allocated memory is still 159.4MB. Free memory was 128.5MB in the beginning and 105.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 07:14:47,833 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:14:47,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 845.97ms. Allocated memory is still 159.4MB. Free memory was 128.5MB in the beginning and 105.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 07:14:47,835 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 845.97ms. Allocated memory is still 159.4MB. Free memory was 128.5MB in the beginning and 105.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: 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_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje --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 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:14:50,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:14:50,243 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 07:14:50,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:14:50,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:14:50,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:14:50,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:14:50,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:14:50,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:14:50,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:14:50,309 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:14:50,310 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:14:50,311 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:14:50,312 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:14:50,313 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:14:50,313 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:14:50,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:14:50,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:14:50,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:14:50,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:14:50,318 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:14:50,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:14:50,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:14:50,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:14:50,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:14:50,322 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 07:14:50,322 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 07:14:50,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:14:50,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:14:50,323 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:14:50,323 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:14:50,324 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:14:50,325 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:14:50,325 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:14:50,325 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:14:50,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:14:50,326 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:14:50,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:14:50,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:14:50,326 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:14:50,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:14:50,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:14:50,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:14:50,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:14:50,328 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:14:50,328 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:14:50,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:14:50,329 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:14:50,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 [2024-11-09 07:14:50,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:14:50,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:14:50,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:14:50,823 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:14:50,823 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:14:50,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i Unable to find full path for "g++" [2024-11-09 07:14:52,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:14:53,369 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:14:53,369 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2024-11-09 07:14:53,398 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/data/95018d52f/952c79096cee4715a9d078a0262a7d06/FLAG9fa71e546 [2024-11-09 07:14:53,510 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/data/95018d52f/952c79096cee4715a9d078a0262a7d06 [2024-11-09 07:14:53,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:14:53,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:14:53,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:14:53,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:14:53,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:14:53,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:14:53" (1/1) ... [2024-11-09 07:14:53,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb1e412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:53, skipping insertion in model container [2024-11-09 07:14:53,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:14:53" (1/1) ... [2024-11-09 07:14:53,610 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:14:54,151 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,196 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,201 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,205 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,215 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,274 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,274 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,278 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,278 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,282 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,284 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,286 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,287 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,292 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:14:54,315 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 07:14:54,335 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:14:54,372 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,392 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,395 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,398 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,403 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,448 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,449 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,455 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,455 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,463 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,466 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,467 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,468 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,479 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:14:54,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:14:54,495 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:14:54,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:14:54,693 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:14:54,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54 WrapperNode [2024-11-09 07:14:54,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:14:54,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:14:54,695 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:14:54,695 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:14:54,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,821 INFO L138 Inliner]: procedures = 179, calls = 272, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 983 [2024-11-09 07:14:54,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:14:54,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:14:54,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:14:54,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:14:54,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,940 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:14:54,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:14:54,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:14:54,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:14:54,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (1/1) ... [2024-11-09 07:14:54,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:14:54,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:14:55,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:14:55,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:14:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 07:14:55,054 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 07:14:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 07:14:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 07:14:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 07:14:55,055 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 07:14:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:14:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:14:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:14:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:14:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:14:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:14:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 07:14:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:14:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:14:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:14:55,297 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:14:55,299 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:15:01,738 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-09 07:15:01,739 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:15:01,757 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:15:01,759 INFO L316 CfgBuilder]: Removed 58 assume(true) statements. [2024-11-09 07:15:01,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:15:01 BoogieIcfgContainer [2024-11-09 07:15:01,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:15:01,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:15:01,764 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:15:01,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:15:01,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:14:53" (1/3) ... [2024-11-09 07:15:01,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e77dbd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:15:01, skipping insertion in model container [2024-11-09 07:15:01,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:14:54" (2/3) ... [2024-11-09 07:15:01,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e77dbd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:15:01, skipping insertion in model container [2024-11-09 07:15:01,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:15:01" (3/3) ... [2024-11-09 07:15:01,772 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test7-1.i [2024-11-09 07:15:01,791 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:15:01,791 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:15:01,865 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:15:01,872 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@6f0a5474, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:15:01,873 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:15:01,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 192 states have (on average 1.6510416666666667) internal successors, (317), 195 states have internal predecessors, (317), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:15:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 07:15:01,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:01,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:01,891 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:01,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:01,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1091714918, now seen corresponding path program 1 times [2024-11-09 07:15:01,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:01,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847569244] [2024-11-09 07:15:01,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:01,914 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 [2024-11-09 07:15:01,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:01,918 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:01,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:15:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:02,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:15:02,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:15:02,150 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:02,152 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:02,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847569244] [2024-11-09 07:15:02,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847569244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:02,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:15:02,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:15:02,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450732652] [2024-11-09 07:15:02,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:02,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:15:02,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:02,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:15:02,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:15:02,201 INFO L87 Difference]: Start difference. First operand has 202 states, 192 states have (on average 1.6510416666666667) internal successors, (317), 195 states have internal predecessors, (317), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:15:02,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:02,246 INFO L93 Difference]: Finished difference Result 199 states and 259 transitions. [2024-11-09 07:15:02,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:15:02,249 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 07:15:02,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:02,262 INFO L225 Difference]: With dead ends: 199 [2024-11-09 07:15:02,262 INFO L226 Difference]: Without dead ends: 197 [2024-11-09 07:15:02,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:15:02,271 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:02,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:15:02,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-09 07:15:02,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-09 07:15:02,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 189 states have (on average 1.3174603174603174) internal successors, (249), 191 states have internal predecessors, (249), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:15:02,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 257 transitions. [2024-11-09 07:15:02,329 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 257 transitions. Word has length 9 [2024-11-09 07:15:02,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:02,330 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 257 transitions. [2024-11-09 07:15:02,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:15:02,330 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 257 transitions. [2024-11-09 07:15:02,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 07:15:02,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:02,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:02,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:15:02,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:15:02,532 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:02,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:02,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2074045910, now seen corresponding path program 1 times [2024-11-09 07:15:02,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:02,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344860621] [2024-11-09 07:15:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:02,534 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 [2024-11-09 07:15:02,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:02,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:02,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:15:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:02,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:15:02,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:02,878 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:15:02,879 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:15:02,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2024-11-09 07:15:02,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:15:02,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 22 [2024-11-09 07:15:03,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:15:03,031 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:03,032 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:03,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344860621] [2024-11-09 07:15:03,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344860621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:03,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:15:03,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:15:03,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235082780] [2024-11-09 07:15:03,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:03,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:15:03,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:03,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:15:03,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:15:03,041 INFO L87 Difference]: Start difference. First operand 197 states and 257 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) [2024-11-09 07:15:06,753 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 [] [2024-11-09 07:15:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:08,995 INFO L93 Difference]: Finished difference Result 286 states and 376 transitions. [2024-11-09 07:15:08,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:15:08,996 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 [2024-11-09 07:15:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:08,998 INFO L225 Difference]: With dead ends: 286 [2024-11-09 07:15:08,998 INFO L226 Difference]: Without dead ends: 286 [2024-11-09 07:15:08,999 INFO L431 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 [2024-11-09 07:15:09,000 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 110 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:09,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 655 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-11-09 07:15:09,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-09 07:15:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 199. [2024-11-09 07:15:09,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 191 states have (on average 1.3141361256544504) internal successors, (251), 193 states have internal predecessors, (251), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:15:09,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 259 transitions. [2024-11-09 07:15:09,015 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 259 transitions. Word has length 11 [2024-11-09 07:15:09,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:09,015 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 259 transitions. [2024-11-09 07:15:09,016 INFO L472 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) [2024-11-09 07:15:09,016 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 259 transitions. [2024-11-09 07:15:09,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 07:15:09,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:09,018 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:09,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-09 07:15:09,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:15:09,222 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:09,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:09,223 INFO L85 PathProgramCache]: Analyzing trace with hash 515391857, now seen corresponding path program 1 times [2024-11-09 07:15:09,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:09,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70279773] [2024-11-09 07:15:09,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:09,224 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 [2024-11-09 07:15:09,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:09,228 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:09,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:15:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:09,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:15:09,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:09,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:15:09,768 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:09,769 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:09,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70279773] [2024-11-09 07:15:09,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [70279773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:09,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:15:09,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:15:09,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471196900] [2024-11-09 07:15:09,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:09,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:15:09,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:09,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:15:09,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:15:09,772 INFO L87 Difference]: Start difference. First operand 199 states and 259 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-09 07:15:09,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:09,964 INFO L93 Difference]: Finished difference Result 201 states and 252 transitions. [2024-11-09 07:15:09,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:15:09,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 67 [2024-11-09 07:15:09,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:09,966 INFO L225 Difference]: With dead ends: 201 [2024-11-09 07:15:09,966 INFO L226 Difference]: Without dead ends: 201 [2024-11-09 07:15:09,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:15:09,968 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 30 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:09,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 656 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:15:09,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-09 07:15:09,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-09 07:15:09,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 193 states have (on average 1.2642487046632125) internal successors, (244), 195 states have internal predecessors, (244), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:15:09,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 252 transitions. [2024-11-09 07:15:09,980 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 252 transitions. Word has length 67 [2024-11-09 07:15:09,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:09,980 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 252 transitions. [2024-11-09 07:15:09,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-09 07:15:09,981 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 252 transitions. [2024-11-09 07:15:09,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 07:15:09,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:09,983 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:09,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 07:15:10,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:15:10,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:10,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:10,185 INFO L85 PathProgramCache]: Analyzing trace with hash 493505253, now seen corresponding path program 1 times [2024-11-09 07:15:10,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:10,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904705097] [2024-11-09 07:15:10,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:10,186 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 [2024-11-09 07:15:10,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:10,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:10,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:15:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:10,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:15:10,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:11,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:15:11,163 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:11,163 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:11,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904705097] [2024-11-09 07:15:11,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904705097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:11,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:15:11,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:15:11,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733010972] [2024-11-09 07:15:11,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:11,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:15:11,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:11,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:15:11,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:15:11,169 INFO L87 Difference]: Start difference. First operand 201 states and 252 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-09 07:15:12,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:12,051 INFO L93 Difference]: Finished difference Result 313 states and 391 transitions. [2024-11-09 07:15:12,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:15:12,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2024-11-09 07:15:12,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:12,054 INFO L225 Difference]: With dead ends: 313 [2024-11-09 07:15:12,054 INFO L226 Difference]: Without dead ends: 313 [2024-11-09 07:15:12,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:15:12,058 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 92 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:12,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 508 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:15:12,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-09 07:15:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 310. [2024-11-09 07:15:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 302 states have (on average 1.2582781456953642) internal successors, (380), 304 states have internal predecessors, (380), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:15:12,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 388 transitions. [2024-11-09 07:15:12,074 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 388 transitions. Word has length 67 [2024-11-09 07:15:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:12,075 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 388 transitions. [2024-11-09 07:15:12,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-09 07:15:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 388 transitions. [2024-11-09 07:15:12,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 07:15:12,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:12,078 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:12,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:15:12,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:15:12,279 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:12,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:12,280 INFO L85 PathProgramCache]: Analyzing trace with hash -558067892, now seen corresponding path program 1 times [2024-11-09 07:15:12,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:12,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736850812] [2024-11-09 07:15:12,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:12,282 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 [2024-11-09 07:15:12,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:12,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:12,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:15:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:12,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:15:12,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:15:12,899 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:12,899 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:12,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736850812] [2024-11-09 07:15:12,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736850812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:12,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:15:12,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:15:12,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387255231] [2024-11-09 07:15:12,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:12,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:15:12,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:12,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:15:12,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:15:12,903 INFO L87 Difference]: Start difference. First operand 310 states and 388 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:15:12,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:12,955 INFO L93 Difference]: Finished difference Result 313 states and 392 transitions. [2024-11-09 07:15:12,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:15:12,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 82 [2024-11-09 07:15:12,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:12,961 INFO L225 Difference]: With dead ends: 313 [2024-11-09 07:15:12,962 INFO L226 Difference]: Without dead ends: 313 [2024-11-09 07:15:12,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:15:12,963 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:12,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 719 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:15:12,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-09 07:15:12,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2024-11-09 07:15:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 304 states have (on average 1.2598684210526316) internal successors, (383), 307 states have internal predecessors, (383), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:15:12,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 392 transitions. [2024-11-09 07:15:12,999 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 392 transitions. Word has length 82 [2024-11-09 07:15:12,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:12,999 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 392 transitions. [2024-11-09 07:15:13,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:15:13,000 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 392 transitions. [2024-11-09 07:15:13,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 07:15:13,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:13,003 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:13,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:15:13,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:15:13,204 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:13,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:13,204 INFO L85 PathProgramCache]: Analyzing trace with hash 849515658, now seen corresponding path program 1 times [2024-11-09 07:15:13,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:13,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723326613] [2024-11-09 07:15:13,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:13,206 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 [2024-11-09 07:15:13,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:13,209 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:13,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:15:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:13,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:15:13,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:13,814 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:15:13,815 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:13,949 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:15:13,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:13,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723326613] [2024-11-09 07:15:13,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723326613] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:13,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1649193673] [2024-11-09 07:15:13,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:13,950 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:15:13,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:15:13,954 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:15:13,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-09 07:15:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:14,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:15:14,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 07:15:15,050 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:15,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1649193673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:15,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:15:15,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 07:15:15,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928373599] [2024-11-09 07:15:15,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:15,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:15:15,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:15,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:15:15,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:15:15,053 INFO L87 Difference]: Start difference. First operand 313 states and 392 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-11-09 07:15:17,516 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 [] [2024-11-09 07:15:19,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:21,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:21,831 INFO L93 Difference]: Finished difference Result 404 states and 512 transitions. [2024-11-09 07:15:21,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:15:21,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 84 [2024-11-09 07:15:21,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:21,836 INFO L225 Difference]: With dead ends: 404 [2024-11-09 07:15:21,836 INFO L226 Difference]: Without dead ends: 404 [2024-11-09 07:15:21,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:15:21,837 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 480 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:21,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 414 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2024-11-09 07:15:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-09 07:15:21,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 401. [2024-11-09 07:15:21,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 392 states have (on average 1.2755102040816326) internal successors, (500), 395 states have internal predecessors, (500), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:15:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 509 transitions. [2024-11-09 07:15:21,864 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 509 transitions. Word has length 84 [2024-11-09 07:15:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:21,865 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 509 transitions. [2024-11-09 07:15:21,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-11-09 07:15:21,865 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 509 transitions. [2024-11-09 07:15:21,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 07:15:21,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:21,867 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:21,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-09 07:15:22,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:15:22,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:15:22,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:22,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:22,273 INFO L85 PathProgramCache]: Analyzing trace with hash 332281363, now seen corresponding path program 1 times [2024-11-09 07:15:22,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:22,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690770094] [2024-11-09 07:15:22,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:22,274 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 [2024-11-09 07:15:22,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:22,277 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:22,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 07:15:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:22,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:15:22,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:15:22,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:15:23,044 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:23,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690770094] [2024-11-09 07:15:23,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690770094] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:23,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1245145689] [2024-11-09 07:15:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:23,045 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:15:23,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:15:23,048 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:15:23,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-09 07:15:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:24,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:15:24,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:15:24,034 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:15:24,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1245145689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:24,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552651024] [2024-11-09 07:15:24,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:24,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:15:24,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:15:24,114 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:15:24,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:15:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:24,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:15:24,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:24,700 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:15:24,701 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:15:24,702 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:15:24,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-09 07:15:24,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:15:24,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-09 07:15:24,827 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:15:24,827 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:24,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552651024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:24,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-09 07:15:24,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5, 5] total 10 [2024-11-09 07:15:24,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120000650] [2024-11-09 07:15:24,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:24,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:15:24,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:24,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:15:24,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:15:24,829 INFO L87 Difference]: Start difference. First operand 401 states and 509 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:15:28,155 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 [] [2024-11-09 07:15:31,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:31,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:31,927 INFO L93 Difference]: Finished difference Result 481 states and 615 transitions. [2024-11-09 07:15:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:15:31,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-09 07:15:31,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:31,930 INFO L225 Difference]: With dead ends: 481 [2024-11-09 07:15:31,930 INFO L226 Difference]: Without dead ends: 481 [2024-11-09 07:15:31,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:15:31,932 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 139 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:31,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 617 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2024-11-09 07:15:31,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-09 07:15:31,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 403. [2024-11-09 07:15:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 394 states have (on average 1.2741116751269035) internal successors, (502), 397 states have internal predecessors, (502), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:15:31,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 511 transitions. [2024-11-09 07:15:31,947 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 511 transitions. Word has length 86 [2024-11-09 07:15:31,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:31,948 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 511 transitions. [2024-11-09 07:15:31,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:15:31,948 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 511 transitions. [2024-11-09 07:15:31,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:15:31,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:31,951 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:31,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 07:15:32,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-09 07:15:32,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-09 07:15:32,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:15:32,552 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:32,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:32,553 INFO L85 PathProgramCache]: Analyzing trace with hash 429390226, now seen corresponding path program 1 times [2024-11-09 07:15:32,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:32,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756979860] [2024-11-09 07:15:32,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:32,555 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 [2024-11-09 07:15:32,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:32,558 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:32,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:15:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:33,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:15:33,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:15:33,311 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:15:33,431 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:33,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756979860] [2024-11-09 07:15:33,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756979860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:33,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [700277961] [2024-11-09 07:15:33,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:33,432 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:15:33,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:15:33,435 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:15:33,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-09 07:15:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:34,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:15:34,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:34,371 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:15:34,371 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:34,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [700277961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:34,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:15:34,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 07:15:34,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314303657] [2024-11-09 07:15:34,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:34,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:15:34,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:34,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:15:34,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:15:34,374 INFO L87 Difference]: Start difference. First operand 403 states and 511 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:15:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:34,594 INFO L93 Difference]: Finished difference Result 430 states and 520 transitions. [2024-11-09 07:15:34,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:15:34,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 129 [2024-11-09 07:15:34,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:34,596 INFO L225 Difference]: With dead ends: 430 [2024-11-09 07:15:34,596 INFO L226 Difference]: Without dead ends: 430 [2024-11-09 07:15:34,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:15:34,597 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 22 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:34,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 616 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:15:34,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-09 07:15:34,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 427. [2024-11-09 07:15:34,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 418 states have (on average 1.215311004784689) internal successors, (508), 421 states have internal predecessors, (508), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:15:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 517 transitions. [2024-11-09 07:15:34,609 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 517 transitions. Word has length 129 [2024-11-09 07:15:34,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:34,609 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 517 transitions. [2024-11-09 07:15:34,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:15:34,610 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 517 transitions. [2024-11-09 07:15:34,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:15:34,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:34,612 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:34,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-09 07:15:34,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-09 07:15:35,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:15:35,012 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:35,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:35,013 INFO L85 PathProgramCache]: Analyzing trace with hash 406757972, now seen corresponding path program 1 times [2024-11-09 07:15:35,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:35,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321251355] [2024-11-09 07:15:35,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:35,014 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 [2024-11-09 07:15:35,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:35,015 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:35,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-09 07:15:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:35,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:15:35,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:15:35,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:35,972 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:15:35,972 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:35,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321251355] [2024-11-09 07:15:35,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321251355] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:35,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [604379182] [2024-11-09 07:15:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:35,973 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:15:35,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:15:35,976 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:15:35,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-09 07:15:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:36,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:15:36,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:36,954 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:15:36,954 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:36,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [604379182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:36,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:15:36,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2024-11-09 07:15:36,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633914137] [2024-11-09 07:15:36,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:36,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:15:36,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:36,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:15:36,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:15:36,956 INFO L87 Difference]: Start difference. First operand 427 states and 517 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:15:37,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:37,088 INFO L93 Difference]: Finished difference Result 391 states and 460 transitions. [2024-11-09 07:15:37,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:15:37,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 129 [2024-11-09 07:15:37,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:37,090 INFO L225 Difference]: With dead ends: 391 [2024-11-09 07:15:37,091 INFO L226 Difference]: Without dead ends: 391 [2024-11-09 07:15:37,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:15:37,092 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 30 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:37,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 612 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:15:37,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-09 07:15:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-09 07:15:37,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 382 states have (on average 1.1806282722513088) internal successors, (451), 385 states have internal predecessors, (451), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:15:37,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 460 transitions. [2024-11-09 07:15:37,103 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 460 transitions. Word has length 129 [2024-11-09 07:15:37,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:37,104 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 460 transitions. [2024-11-09 07:15:37,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:15:37,104 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 460 transitions. [2024-11-09 07:15:37,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:15:37,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:37,106 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:37,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-09 07:15:37,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-11-09 07:15:37,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:15:37,510 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:37,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:37,510 INFO L85 PathProgramCache]: Analyzing trace with hash 185114696, now seen corresponding path program 1 times [2024-11-09 07:15:37,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:37,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527854042] [2024-11-09 07:15:37,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:37,511 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 [2024-11-09 07:15:37,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:37,514 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:37,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-09 07:15:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:38,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:15:38,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:15:38,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:15:38,406 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:38,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527854042] [2024-11-09 07:15:38,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527854042] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:38,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1648376796] [2024-11-09 07:15:38,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:38,407 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:15:38,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:15:38,410 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:15:38,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 07:15:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:39,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:15:39,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:39,565 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:15:39,566 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:15:39,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1648376796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:39,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797415237] [2024-11-09 07:15:39,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:39,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:15:39,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:15:39,634 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:15:39,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 07:15:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:40,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:15:40,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:15:40,336 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:15:40,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797415237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:40,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 07:15:40,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-09 07:15:40,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455005106] [2024-11-09 07:15:40,461 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 07:15:40,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:15:40,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:40,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:15:40,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:15:40,463 INFO L87 Difference]: Start difference. First operand 391 states and 460 transitions. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:15:41,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:41,029 INFO L93 Difference]: Finished difference Result 406 states and 482 transitions. [2024-11-09 07:15:41,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:15:41,030 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 129 [2024-11-09 07:15:41,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:41,032 INFO L225 Difference]: With dead ends: 406 [2024-11-09 07:15:41,033 INFO L226 Difference]: Without dead ends: 406 [2024-11-09 07:15:41,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-09 07:15:41,034 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 12 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:41,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1537 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:15:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-09 07:15:41,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 402. [2024-11-09 07:15:41,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 392 states have (on average 1.1964285714285714) internal successors, (469), 395 states have internal predecessors, (469), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:15:41,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 478 transitions. [2024-11-09 07:15:41,047 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 478 transitions. Word has length 129 [2024-11-09 07:15:41,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:41,047 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 478 transitions. [2024-11-09 07:15:41,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:15:41,048 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 478 transitions. [2024-11-09 07:15:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 07:15:41,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:41,049 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:41,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-09 07:15:41,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-09 07:15:41,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-09 07:15:41,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:15:41,650 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:41,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:41,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2140977606, now seen corresponding path program 2 times [2024-11-09 07:15:41,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:41,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353063716] [2024-11-09 07:15:41,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:15:41,652 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 [2024-11-09 07:15:41,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:41,653 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:41,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-09 07:15:42,407 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:15:42,407 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:15:42,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:15:42,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:42,595 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:15:42,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:15:42,952 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:42,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353063716] [2024-11-09 07:15:42,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353063716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:42,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1319525797] [2024-11-09 07:15:42,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:15:42,953 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:15:42,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:15:42,954 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:15:42,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-09 07:15:44,498 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:15:44,498 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:15:44,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:15:44,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:44,575 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:15:44,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:44,720 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:15:44,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1319525797] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:44,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527326979] [2024-11-09 07:15:44,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:15:44,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:15:44,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:15:44,722 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:15:44,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 07:15:45,547 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:15:45,547 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:15:45,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:15:45,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:45,694 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:15:45,694 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:46,091 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:15:46,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527326979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:46,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 07:15:46,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 20 [2024-11-09 07:15:46,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961342783] [2024-11-09 07:15:46,092 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 07:15:46,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 07:15:46,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:46,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 07:15:46,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2024-11-09 07:15:46,095 INFO L87 Difference]: Start difference. First operand 402 states and 478 transitions. Second operand has 20 states, 20 states have (on average 7.3) internal successors, (146), 20 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 07:15:46,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:46,925 INFO L93 Difference]: Finished difference Result 415 states and 495 transitions. [2024-11-09 07:15:46,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 07:15:46,926 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.3) internal successors, (146), 20 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-09 07:15:46,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:46,928 INFO L225 Difference]: With dead ends: 415 [2024-11-09 07:15:46,928 INFO L226 Difference]: Without dead ends: 409 [2024-11-09 07:15:46,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 786 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=292, Invalid=520, Unknown=0, NotChecked=0, Total=812 [2024-11-09 07:15:46,929 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 7 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:46,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1563 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:15:46,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-09 07:15:46,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2024-11-09 07:15:46,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 399 states have (on average 1.1929824561403508) internal successors, (476), 402 states have internal predecessors, (476), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:15:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 485 transitions. [2024-11-09 07:15:46,939 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 485 transitions. Word has length 135 [2024-11-09 07:15:46,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:46,940 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 485 transitions. [2024-11-09 07:15:46,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.3) internal successors, (146), 20 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 07:15:46,940 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 485 transitions. [2024-11-09 07:15:46,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-09 07:15:46,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:46,942 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:46,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-09 07:15:47,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-09 07:15:47,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 07:15:47,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:15:47,543 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:15:47,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:47,543 INFO L85 PathProgramCache]: Analyzing trace with hash -210113127, now seen corresponding path program 3 times [2024-11-09 07:15:47,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:47,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581205958] [2024-11-09 07:15:47,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:15:47,544 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 [2024-11-09 07:15:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:47,545 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:15:47,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-09 07:15:50,950 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 07:15:50,950 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:15:50,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:15:50,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:51,155 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:15:51,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:51,626 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:15:51,626 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:51,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581205958] [2024-11-09 07:15:51,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581205958] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:51,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1741679314] [2024-11-09 07:15:51,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:15:51,627 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:15:51,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:15:51,631 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:15:51,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-09 07:16:11,439 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 07:16:11,440 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:16:11,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:16:11,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:11,581 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:16:11,582 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:16:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:16:11,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1741679314] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:16:11,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515802021] [2024-11-09 07:16:11,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:16:11,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:11,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:11,724 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:11,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca7f9dfc-1142-4c84-bc8a-2c7b0d1a7945/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process