./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.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_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:17:02,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:17:02,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 07:17:02,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:17:02,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:17:02,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:17:02,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:17:02,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:17:02,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:17:02,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:17:02,162 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:17:02,163 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:17:02,163 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:17:02,164 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:17:02,164 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:17:02,165 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:17:02,165 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:17:02,166 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:17:02,166 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:17:02,167 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:17:02,167 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:17:02,168 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:17:02,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:17:02,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:17:02,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:17:02,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:17:02,170 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:17:02,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:17:02,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:17:02,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:17:02,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:17:02,172 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 07:17:02,173 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 07:17:02,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:17:02,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:17:02,174 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:17:02,174 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:17:02,175 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:17:02,175 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:17:02,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:17:02,176 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:17:02,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:17:02,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:17:02,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:17:02,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:17:02,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:17:02,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:17:02,179 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:17:02,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:17:02,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:17:02,180 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:17:02,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:17:02,180 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_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2024-11-09 07:17:02,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:17:02,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:17:02,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:17:02,499 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:17:02,500 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:17:02,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i Unable to find full path for "g++" [2024-11-09 07:17:04,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:17:05,094 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:17:05,095 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2024-11-09 07:17:05,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/data/5c1022bac/b753a6ce95bd4f79973b9928bd0c246f/FLAG872aba91b [2024-11-09 07:17:05,149 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/data/5c1022bac/b753a6ce95bd4f79973b9928bd0c246f [2024-11-09 07:17:05,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:17:05,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:17:05,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:17:05,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:17:05,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:17:05,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:17:05" (1/1) ... [2024-11-09 07:17:05,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6837434f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:05, skipping insertion in model container [2024-11-09 07:17:05,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:17:05" (1/1) ... [2024-11-09 07:17:05,250 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:17:05,871 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 07:17:05,943 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 07:17:05,951 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 07:17:05,959 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 07:17:05,979 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 07:17:06,052 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 07:17:06,058 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 07:17:06,064 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 07:17:06,075 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 07:17:06,109 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 07:17:06,109 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 07:17:06,112 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 07:17:06,113 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 07:17:06,115 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 07:17:06,118 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 07:17:06,120 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 07:17:06,121 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 07:17:06,122 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 07:17:06,128 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 07:17:06,129 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 07:17:06,130 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 07:17:06,131 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 07:17:06,135 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 07:17:06,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:17:06,166 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 07:17:06,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58dc62d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:06, skipping insertion in model container [2024-11-09 07:17:06,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:17:06,169 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 07:17:06,171 INFO L158 Benchmark]: Toolchain (without parser) took 1016.50ms. Allocated memory is still 174.1MB. Free memory was 128.6MB in the beginning and 100.3MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-09 07:17:06,172 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:17:06,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1013.43ms. Allocated memory is still 174.1MB. Free memory was 128.6MB in the beginning and 100.3MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-09 07:17:06,174 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1013.43ms. Allocated memory is still 174.1MB. Free memory was 128.6MB in the beginning and 100.3MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 760]: 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_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:17:08,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:17:08,688 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 07:17:08,698 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:17:08,699 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:17:08,741 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:17:08,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:17:08,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:17:08,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:17:08,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:17:08,745 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:17:08,746 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:17:08,746 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:17:08,747 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:17:08,747 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:17:08,750 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:17:08,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:17:08,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:17:08,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:17:08,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:17:08,756 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:17:08,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:17:08,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:17:08,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:17:08,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:17:08,760 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 07:17:08,760 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 07:17:08,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:17:08,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:17:08,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:17:08,762 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:17:08,762 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:17:08,762 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:17:08,763 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:17:08,763 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:17:08,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:17:08,764 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:17:08,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:17:08,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:17:08,766 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:17:08,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:17:08,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:17:08,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:17:08,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:17:08,768 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:17:08,769 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:17:08,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:17:08,769 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:17:08,770 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_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2024-11-09 07:17:09,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:17:09,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:17:09,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:17:09,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:17:09,196 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:17:09,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i Unable to find full path for "g++" [2024-11-09 07:17:11,192 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:17:11,622 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:17:11,623 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2024-11-09 07:17:11,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/data/8d338cf26/eaefbf0b65e74db784284d81c2d16e90/FLAG801cf470b [2024-11-09 07:17:11,658 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/data/8d338cf26/eaefbf0b65e74db784284d81c2d16e90 [2024-11-09 07:17:11,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:17:11,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:17:11,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:17:11,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:17:11,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:17:11,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:17:11" (1/1) ... [2024-11-09 07:17:11,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5856a432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:11, skipping insertion in model container [2024-11-09 07:17:11,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:17:11" (1/1) ... [2024-11-09 07:17:11,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:17:12,446 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 07:17:12,501 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 07:17:12,512 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 07:17:12,524 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 07:17:12,534 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 07:17:12,586 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 07:17:12,590 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 07:17:12,596 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 07:17:12,610 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 07:17:12,656 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 07:17:12,657 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 07:17:12,660 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 07:17:12,661 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 07:17:12,664 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 07:17:12,666 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 07:17:12,668 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 07:17:12,670 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 07:17:12,671 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 07:17:12,679 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 07:17:12,680 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 07:17:12,681 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 07:17:12,682 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 07:17:12,687 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 07:17:12,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:17:12,708 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 07:17:12,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:17:12,764 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 07:17:12,791 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 07:17:12,796 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 07:17:12,798 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 07:17:12,804 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 07:17:12,842 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 07:17:12,845 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 07:17:12,848 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 07:17:12,858 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 07:17:12,896 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 07:17:12,896 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 07:17:12,898 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 07:17:12,898 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 07:17:12,904 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 07:17:12,911 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 07:17:12,912 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 07:17:12,913 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 07:17:12,914 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 07:17:12,920 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 07:17:12,921 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 07:17:12,922 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 07:17:12,924 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 07:17:12,930 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 07:17:12,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:17:12,945 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:17:13,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:17:13,140 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:17:13,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13 WrapperNode [2024-11-09 07:17:13,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:17:13,142 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:17:13,142 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:17:13,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:17:13,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,296 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1673 [2024-11-09 07:17:13,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:17:13,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:17:13,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:17:13,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:17:13,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:17:13,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:17:13,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:17:13,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:17:13,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (1/1) ... [2024-11-09 07:17:13,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:17:13,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:13,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:17:13,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:17:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 07:17:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 07:17:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 07:17:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 07:17:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:17:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:17:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 07:17:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 07:17:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:17:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:17:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:17:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:17:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:17:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:17:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 07:17:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:17:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:17:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:17:13,818 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:17:13,820 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:17:28,580 INFO L? ?]: Removed 230 outVars from TransFormulas that were not future-live. [2024-11-09 07:17:28,580 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:17:28,611 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:17:28,612 INFO L316 CfgBuilder]: Removed 91 assume(true) statements. [2024-11-09 07:17:28,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:17:28 BoogieIcfgContainer [2024-11-09 07:17:28,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:17:28,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:17:28,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:17:28,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:17:28,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:17:11" (1/3) ... [2024-11-09 07:17:28,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23109a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:17:28, skipping insertion in model container [2024-11-09 07:17:28,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:13" (2/3) ... [2024-11-09 07:17:28,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23109a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:17:28, skipping insertion in model container [2024-11-09 07:17:28,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:17:28" (3/3) ... [2024-11-09 07:17:28,626 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-3.i [2024-11-09 07:17:28,650 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:17:28,650 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:17:28,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:17:28,774 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;@52ae5b14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:17:28,774 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:17:28,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 331 states, 312 states have (on average 1.6538461538461537) internal successors, (516), 321 states have internal predecessors, (516), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:17:28,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 07:17:28,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:28,803 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:28,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:28,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:28,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1426993366, now seen corresponding path program 1 times [2024-11-09 07:17:28,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:28,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223158657] [2024-11-09 07:17:28,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:28,831 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 07:17:28,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:28,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:28,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:29,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:17:29,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:29,191 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 07:17:29,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:29,193 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:29,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223158657] [2024-11-09 07:17:29,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223158657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:29,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:29,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:17:29,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606533569] [2024-11-09 07:17:29,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:29,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:17:29,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:17:29,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:17:29,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:17:29,249 INFO L87 Difference]: Start difference. First operand has 331 states, 312 states have (on average 1.6538461538461537) internal successors, (516), 321 states have internal predecessors, (516), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:17:29,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:29,333 INFO L93 Difference]: Finished difference Result 329 states and 439 transitions. [2024-11-09 07:17:29,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:17:29,336 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 07:17:29,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:29,357 INFO L225 Difference]: With dead ends: 329 [2024-11-09 07:17:29,357 INFO L226 Difference]: Without dead ends: 327 [2024-11-09 07:17:29,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 07:17:29,367 INFO L432 NwaCegarLoop]: 439 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, 439 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 07:17:29,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:17:29,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-09 07:17:29,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2024-11-09 07:17:29,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 310 states have (on average 1.332258064516129) internal successors, (413), 317 states have internal predecessors, (413), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:17:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 437 transitions. [2024-11-09 07:17:29,473 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 437 transitions. Word has length 11 [2024-11-09 07:17:29,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:29,474 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 437 transitions. [2024-11-09 07:17:29,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:17:29,474 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 437 transitions. [2024-11-09 07:17:29,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 07:17:29,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:29,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:29,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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)] Ended with exit code 0 [2024-11-09 07:17:29,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:29,677 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:29,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:29,679 INFO L85 PathProgramCache]: Analyzing trace with hash -196923720, now seen corresponding path program 1 times [2024-11-09 07:17:29,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:29,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111889620] [2024-11-09 07:17:29,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:29,681 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 07:17:29,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:29,685 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:29,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:29,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 07:17:29,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:29,991 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 07:17:29,991 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:29,992 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:29,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111889620] [2024-11-09 07:17:29,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111889620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:29,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:29,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:17:29,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490487263] [2024-11-09 07:17:29,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:29,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:17:29,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:17:29,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:17:29,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:17:29,997 INFO L87 Difference]: Start difference. First operand 327 states and 437 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 07:17:30,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:30,452 INFO L93 Difference]: Finished difference Result 582 states and 780 transitions. [2024-11-09 07:17:30,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:17:30,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 07:17:30,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:30,464 INFO L225 Difference]: With dead ends: 582 [2024-11-09 07:17:30,468 INFO L226 Difference]: Without dead ends: 582 [2024-11-09 07:17:30,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 07:17:30,470 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 318 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:30,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 855 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:17:30,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-09 07:17:30,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 331. [2024-11-09 07:17:30,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 314 states have (on average 1.3280254777070064) internal successors, (417), 321 states have internal predecessors, (417), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:17:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 441 transitions. [2024-11-09 07:17:30,510 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 441 transitions. Word has length 11 [2024-11-09 07:17:30,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:30,511 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 441 transitions. [2024-11-09 07:17:30,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 07:17:30,511 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 441 transitions. [2024-11-09 07:17:30,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-09 07:17:30,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:30,518 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:30,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:30,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:30,728 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:30,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:30,729 INFO L85 PathProgramCache]: Analyzing trace with hash 646844561, now seen corresponding path program 1 times [2024-11-09 07:17:30,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:30,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075986948] [2024-11-09 07:17:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:30,733 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 07:17:30,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:30,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:30,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:31,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:17:31,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:31,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:17:31,794 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:31,795 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:31,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075986948] [2024-11-09 07:17:31,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075986948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:31,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:31,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:17:31,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439376656] [2024-11-09 07:17:31,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:31,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:17:31,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:17:31,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:17:31,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:17:31,799 INFO L87 Difference]: Start difference. First operand 331 states and 441 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:17:32,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:32,033 INFO L93 Difference]: Finished difference Result 333 states and 434 transitions. [2024-11-09 07:17:32,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:17:32,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-09 07:17:32,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:32,036 INFO L225 Difference]: With dead ends: 333 [2024-11-09 07:17:32,036 INFO L226 Difference]: Without dead ends: 333 [2024-11-09 07:17:32,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 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 07:17:32,038 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 30 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1196 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 07:17:32,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1196 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:17:32,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-09 07:17:32,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-11-09 07:17:32,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 316 states have (on average 1.2974683544303798) internal successors, (410), 323 states have internal predecessors, (410), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:17:32,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 434 transitions. [2024-11-09 07:17:32,095 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 434 transitions. Word has length 154 [2024-11-09 07:17:32,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:32,096 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 434 transitions. [2024-11-09 07:17:32,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:17:32,099 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 434 transitions. [2024-11-09 07:17:32,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-09 07:17:32,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:32,109 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:32,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:32,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:32,313 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:32,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:32,314 INFO L85 PathProgramCache]: Analyzing trace with hash 347096221, now seen corresponding path program 1 times [2024-11-09 07:17:32,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:32,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607874745] [2024-11-09 07:17:32,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:32,316 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 07:17:32,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:32,320 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:32,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:33,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:17:33,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:33,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:17:33,839 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:33,840 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:33,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607874745] [2024-11-09 07:17:33,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607874745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:33,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:33,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:17:33,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088220823] [2024-11-09 07:17:33,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:33,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:17:33,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:17:33,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:17:33,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:17:33,847 INFO L87 Difference]: Start difference. First operand 333 states and 434 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:17:34,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:34,803 INFO L93 Difference]: Finished difference Result 429 states and 552 transitions. [2024-11-09 07:17:34,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:17:34,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-09 07:17:34,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:34,809 INFO L225 Difference]: With dead ends: 429 [2024-11-09 07:17:34,810 INFO L226 Difference]: Without dead ends: 429 [2024-11-09 07:17:34,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 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 07:17:34,811 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 74 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:34,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 852 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:17:34,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-09 07:17:34,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 375. [2024-11-09 07:17:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 358 states have (on average 1.2737430167597765) internal successors, (456), 365 states have internal predecessors, (456), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:17:34,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 480 transitions. [2024-11-09 07:17:34,828 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 480 transitions. Word has length 154 [2024-11-09 07:17:34,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:34,829 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 480 transitions. [2024-11-09 07:17:34,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:17:34,830 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 480 transitions. [2024-11-09 07:17:34,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 07:17:34,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:34,835 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:34,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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)] Ended with exit code 0 [2024-11-09 07:17:35,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:35,040 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:35,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:35,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1058727658, now seen corresponding path program 1 times [2024-11-09 07:17:35,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:35,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150314046] [2024-11-09 07:17:35,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:35,042 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 07:17:35,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:35,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:35,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:36,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:17:36,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:17:36,118 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:36,118 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:36,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150314046] [2024-11-09 07:17:36,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150314046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:36,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:36,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:17:36,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729360314] [2024-11-09 07:17:36,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:36,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:17:36,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:17:36,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:17:36,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:17:36,122 INFO L87 Difference]: Start difference. First operand 375 states and 480 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:17:36,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:36,210 INFO L93 Difference]: Finished difference Result 378 states and 485 transitions. [2024-11-09 07:17:36,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:17:36,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 169 [2024-11-09 07:17:36,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:36,213 INFO L225 Difference]: With dead ends: 378 [2024-11-09 07:17:36,213 INFO L226 Difference]: Without dead ends: 378 [2024-11-09 07:17:36,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 166 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 07:17:36,215 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 0 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:36,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1253 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:17:36,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-09 07:17:36,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2024-11-09 07:17:36,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 360 states have (on average 1.275) internal successors, (459), 368 states have internal predecessors, (459), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-09 07:17:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 485 transitions. [2024-11-09 07:17:36,226 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 485 transitions. Word has length 169 [2024-11-09 07:17:36,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:36,227 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 485 transitions. [2024-11-09 07:17:36,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:17:36,227 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 485 transitions. [2024-11-09 07:17:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 07:17:36,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:36,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:36,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:36,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:36,431 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:36,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:36,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1847514216, now seen corresponding path program 1 times [2024-11-09 07:17:36,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:36,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028355059] [2024-11-09 07:17:36,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:36,433 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 07:17:36,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:36,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:36,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:37,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:17:37,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:37,502 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:17:37,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:17:37,666 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:37,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028355059] [2024-11-09 07:17:37,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028355059] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:37,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1029963963] [2024-11-09 07:17:37,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:37,667 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:17:37,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:17:37,671 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:17:37,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-09 07:17:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:38,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 07:17:38,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 07:17:38,871 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:38,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1029963963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:38,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:17:38,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-09 07:17:38,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740647762] [2024-11-09 07:17:38,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:38,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:17:38,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:17:38,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:17:38,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:17:38,879 INFO L87 Difference]: Start difference. First operand 378 states and 485 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 07:17:39,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:39,083 INFO L93 Difference]: Finished difference Result 398 states and 505 transitions. [2024-11-09 07:17:39,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:17:39,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 171 [2024-11-09 07:17:39,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:39,087 INFO L225 Difference]: With dead ends: 398 [2024-11-09 07:17:39,087 INFO L226 Difference]: Without dead ends: 398 [2024-11-09 07:17:39,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:17:39,095 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 1 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:39,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 795 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:17:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-09 07:17:39,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2024-11-09 07:17:39,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 380 states have (on average 1.2605263157894737) internal successors, (479), 388 states have internal predecessors, (479), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-09 07:17:39,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 505 transitions. [2024-11-09 07:17:39,121 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 505 transitions. Word has length 171 [2024-11-09 07:17:39,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:39,121 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 505 transitions. [2024-11-09 07:17:39,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 07:17:39,122 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 505 transitions. [2024-11-09 07:17:39,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 07:17:39,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:39,125 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:39,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:39,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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)] Ended with exit code 0 [2024-11-09 07:17:39,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:39,526 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:39,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:39,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1560230234, now seen corresponding path program 1 times [2024-11-09 07:17:39,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:39,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071263719] [2024-11-09 07:17:39,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:39,528 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 07:17:39,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:39,532 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:39,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:40,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:17:40,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:17:40,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:17:40,876 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:40,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071263719] [2024-11-09 07:17:40,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071263719] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:40,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1939822753] [2024-11-09 07:17:40,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:40,877 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:17:40,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:17:40,880 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:17:40,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-09 07:17:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:42,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:17:42,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 07:17:43,013 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:43,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1939822753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:43,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:17:43,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-09 07:17:43,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481265187] [2024-11-09 07:17:43,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:43,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:17:43,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:17:43,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:17:43,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:17:43,016 INFO L87 Difference]: Start difference. First operand 398 states and 505 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 07:17:44,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:44,020 INFO L93 Difference]: Finished difference Result 706 states and 906 transitions. [2024-11-09 07:17:44,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:17:44,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 171 [2024-11-09 07:17:44,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:44,025 INFO L225 Difference]: With dead ends: 706 [2024-11-09 07:17:44,025 INFO L226 Difference]: Without dead ends: 706 [2024-11-09 07:17:44,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:17:44,026 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 323 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:44,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 930 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 07:17:44,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-09 07:17:44,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 648. [2024-11-09 07:17:44,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 621 states have (on average 1.2608695652173914) internal successors, (783), 634 states have internal predecessors, (783), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (24), 12 states have call predecessors, (24), 20 states have call successors, (24) [2024-11-09 07:17:44,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 829 transitions. [2024-11-09 07:17:44,053 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 829 transitions. Word has length 171 [2024-11-09 07:17:44,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:44,054 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 829 transitions. [2024-11-09 07:17:44,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 07:17:44,054 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 829 transitions. [2024-11-09 07:17:44,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-09 07:17:44,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:44,058 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:44,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:44,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-09 07:17:44,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:17:44,459 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:44,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:44,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1071074715, now seen corresponding path program 1 times [2024-11-09 07:17:44,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:44,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57874] [2024-11-09 07:17:44,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:44,461 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 07:17:44,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:44,462 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:44,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (11)] Waiting until timeout for monitored process [2024-11-09 07:17:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:45,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:17:45,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:45,689 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:17:45,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:17:45,829 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:45,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57874] [2024-11-09 07:17:45,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57874] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:45,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1903708505] [2024-11-09 07:17:45,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:45,830 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:17:45,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:17:45,834 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:17:45,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-09 07:17:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:47,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:17:47,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:49,016 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:17:49,017 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:49,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1903708505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:49,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:17:49,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-09 07:17:49,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712444773] [2024-11-09 07:17:49,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:49,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:17:49,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:17:49,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:17:49,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:17:49,020 INFO L87 Difference]: Start difference. First operand 648 states and 829 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 07:17:49,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:49,684 INFO L93 Difference]: Finished difference Result 849 states and 1090 transitions. [2024-11-09 07:17:49,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:17:49,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 179 [2024-11-09 07:17:49,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:49,694 INFO L225 Difference]: With dead ends: 849 [2024-11-09 07:17:49,694 INFO L226 Difference]: Without dead ends: 849 [2024-11-09 07:17:49,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:17:49,695 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 167 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:49,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 889 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 07:17:49,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-09 07:17:49,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 791. [2024-11-09 07:17:49,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 761 states have (on average 1.2614980289093298) internal successors, (960), 774 states have internal predecessors, (960), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (28), 15 states have call predecessors, (28), 23 states have call successors, (28) [2024-11-09 07:17:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1013 transitions. [2024-11-09 07:17:49,725 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1013 transitions. Word has length 179 [2024-11-09 07:17:49,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:49,726 INFO L471 AbstractCegarLoop]: Abstraction has 791 states and 1013 transitions. [2024-11-09 07:17:49,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 07:17:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1013 transitions. [2024-11-09 07:17:49,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-09 07:17:49,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:49,730 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:49,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (11)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:49,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:50,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:17:50,131 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:50,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:50,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1524935764, now seen corresponding path program 1 times [2024-11-09 07:17:50,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:50,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405687024] [2024-11-09 07:17:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:50,134 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 07:17:50,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:50,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:50,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (13)] Waiting until timeout for monitored process [2024-11-09 07:17:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:51,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:17:51,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 07:17:51,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:51,579 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 07:17:51,580 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:51,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405687024] [2024-11-09 07:17:51,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405687024] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:51,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [441578828] [2024-11-09 07:17:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:51,581 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:17:51,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:17:51,584 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:17:51,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-09 07:17:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:53,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:17:53,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-09 07:17:53,364 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:53,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [441578828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:53,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:17:53,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-09 07:17:53,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084229325] [2024-11-09 07:17:53,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:53,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:17:53,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:17:53,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:17:53,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:17:53,368 INFO L87 Difference]: Start difference. First operand 791 states and 1013 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 07:17:53,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:53,566 INFO L93 Difference]: Finished difference Result 851 states and 1073 transitions. [2024-11-09 07:17:53,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:17:53,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 188 [2024-11-09 07:17:53,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:53,571 INFO L225 Difference]: With dead ends: 851 [2024-11-09 07:17:53,571 INFO L226 Difference]: Without dead ends: 851 [2024-11-09 07:17:53,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:17:53,574 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 6 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:53,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 793 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:17:53,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-11-09 07:17:53,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 851. [2024-11-09 07:17:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 821 states have (on average 1.2423873325213155) internal successors, (1020), 834 states have internal predecessors, (1020), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (28), 15 states have call predecessors, (28), 23 states have call successors, (28) [2024-11-09 07:17:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1073 transitions. [2024-11-09 07:17:53,604 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1073 transitions. Word has length 188 [2024-11-09 07:17:53,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:53,605 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1073 transitions. [2024-11-09 07:17:53,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 07:17:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1073 transitions. [2024-11-09 07:17:53,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-09 07:17:53,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:53,609 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:53,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (13)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:53,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:54,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:17:54,010 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:54,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:54,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1015462674, now seen corresponding path program 1 times [2024-11-09 07:17:54,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:54,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611829185] [2024-11-09 07:17:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:54,012 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 07:17:54,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:54,013 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:54,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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)] Waiting until timeout for monitored process [2024-11-09 07:17:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:55,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:17:55,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:55,323 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 07:17:55,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:55,499 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 07:17:55,500 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:55,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611829185] [2024-11-09 07:17:55,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611829185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:55,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1203044889] [2024-11-09 07:17:55,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:55,502 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:17:55,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:17:55,505 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:17:55,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-09 07:17:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:57,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:17:57,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:17:57,277 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:57,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1203044889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:57,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:17:57,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2024-11-09 07:17:57,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581966964] [2024-11-09 07:17:57,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:57,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:17:57,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:17:57,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:17:57,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:17:57,279 INFO L87 Difference]: Start difference. First operand 851 states and 1073 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:17:57,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:57,495 INFO L93 Difference]: Finished difference Result 797 states and 983 transitions. [2024-11-09 07:17:57,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:17:57,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 188 [2024-11-09 07:17:57,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:57,500 INFO L225 Difference]: With dead ends: 797 [2024-11-09 07:17:57,500 INFO L226 Difference]: Without dead ends: 797 [2024-11-09 07:17:57,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 552 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 07:17:57,501 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 14 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:57,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1533 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:17:57,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-09 07:17:57,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2024-11-09 07:17:57,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 767 states have (on average 1.21251629726206) internal successors, (930), 780 states have internal predecessors, (930), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (28), 15 states have call predecessors, (28), 23 states have call successors, (28) [2024-11-09 07:17:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 983 transitions. [2024-11-09 07:17:57,527 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 983 transitions. Word has length 188 [2024-11-09 07:17:57,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:57,528 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 983 transitions. [2024-11-09 07:17:57,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:17:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 983 transitions. [2024-11-09 07:17:57,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-09 07:17:57,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:57,532 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:57,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-09 07:17:57,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:57,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:57,933 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:17:57,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:57,933 INFO L85 PathProgramCache]: Analyzing trace with hash 547661178, now seen corresponding path program 1 times [2024-11-09 07:17:57,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:17:57,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453569865] [2024-11-09 07:17:57,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:57,935 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 07:17:57,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:17:57,936 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:17:57,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (17)] Waiting until timeout for monitored process [2024-11-09 07:17:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:59,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:17:59,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:59,301 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 07:17:59,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:59,471 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 07:17:59,471 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:17:59,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453569865] [2024-11-09 07:17:59,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453569865] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:59,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2003845073] [2024-11-09 07:17:59,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:59,472 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:17:59,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:17:59,473 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:17:59,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-09 07:18:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:01,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:18:01,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:01,652 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 07:18:01,652 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:18:01,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2003845073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:18:01,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:18:01,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 07:18:01,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69054162] [2024-11-09 07:18:01,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:18:01,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:18:01,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:18:01,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:18:01,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:18:01,665 INFO L87 Difference]: Start difference. First operand 797 states and 983 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 07:18:04,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:06,057 WARN L539 Checker$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 07:18:11,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:13,407 WARN L539 Checker$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 07:18:16,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:17,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:18,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:21,738 WARN L539 Checker$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 07:18:21,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:21,755 INFO L93 Difference]: Finished difference Result 720 states and 878 transitions. [2024-11-09 07:18:21,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:18:21,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 188 [2024-11-09 07:18:21,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:21,759 INFO L225 Difference]: With dead ends: 720 [2024-11-09 07:18:21,759 INFO L226 Difference]: Without dead ends: 720 [2024-11-09 07:18:21,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 554 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 07:18:21,760 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 512 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:21,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 698 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 126 Invalid, 5 Unknown, 0 Unchecked, 20.0s Time] [2024-11-09 07:18:21,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-09 07:18:21,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 487. [2024-11-09 07:18:21,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 466 states have (on average 1.2081545064377683) internal successors, (563), 474 states have internal predecessors, (563), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (17), 10 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-09 07:18:21,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 596 transitions. [2024-11-09 07:18:21,776 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 596 transitions. Word has length 188 [2024-11-09 07:18:21,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:21,777 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 596 transitions. [2024-11-09 07:18:21,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 07:18:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 596 transitions. [2024-11-09 07:18:21,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-09 07:18:21,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:21,781 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:18:21,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-09 07:18:21,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (17)] Forceful destruction successful, exit code 0 [2024-11-09 07:18:22,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:18:22,182 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:18:22,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:22,182 INFO L85 PathProgramCache]: Analyzing trace with hash -169961029, now seen corresponding path program 1 times [2024-11-09 07:18:22,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:18:22,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093818938] [2024-11-09 07:18:22,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:22,183 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 07:18:22,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:18:22,184 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:18:22,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:18:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:23,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:18:23,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:23,372 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 07:18:23,373 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 07:18:23,538 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:18:23,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093818938] [2024-11-09 07:18:23,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093818938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:23,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [739121962] [2024-11-09 07:18:23,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:23,539 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:18:23,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:18:23,542 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:18:23,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-09 07:18:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:25,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:18:25,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-09 07:18:25,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:18:25,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [739121962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:18:25,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:18:25,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 07:18:25,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481766686] [2024-11-09 07:18:25,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:18:25,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:18:25,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:18:25,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:18:25,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:18:25,288 INFO L87 Difference]: Start difference. First operand 487 states and 596 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 07:18:25,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:25,484 INFO L93 Difference]: Finished difference Result 469 states and 566 transitions. [2024-11-09 07:18:25,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:18:25,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 196 [2024-11-09 07:18:25,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:25,487 INFO L225 Difference]: With dead ends: 469 [2024-11-09 07:18:25,487 INFO L226 Difference]: Without dead ends: 469 [2024-11-09 07:18:25,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 577 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 07:18:25,489 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 32 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:25,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1111 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:18:25,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-09 07:18:25,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2024-11-09 07:18:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 448 states have (on average 1.1897321428571428) internal successors, (533), 456 states have internal predecessors, (533), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (17), 10 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-09 07:18:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 566 transitions. [2024-11-09 07:18:25,506 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 566 transitions. Word has length 196 [2024-11-09 07:18:25,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:25,507 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 566 transitions. [2024-11-09 07:18:25,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 07:18:25,507 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 566 transitions. [2024-11-09 07:18:25,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-09 07:18:25,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:25,510 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:18:25,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-09 07:18:25,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:18:25,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:18:25,911 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:18:25,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1853975149, now seen corresponding path program 1 times [2024-11-09 07:18:25,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:18:25,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732981815] [2024-11-09 07:18:25,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:25,914 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 07:18:25,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:18:25,917 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:18:25,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (21)] Waiting until timeout for monitored process [2024-11-09 07:18:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:27,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:18:27,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:27,263 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 07:18:27,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:27,439 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 07:18:27,440 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:18:27,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732981815] [2024-11-09 07:18:27,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732981815] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:27,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [876021433] [2024-11-09 07:18:27,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:27,441 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:18:27,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:18:27,444 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:18:27,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-09 07:18:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:29,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:18:29,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:29,593 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 07:18:29,594 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 07:18:29,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [876021433] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:29,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454550298] [2024-11-09 07:18:29,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:29,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:29,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:29,692 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:18:29,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 07:18:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:30,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:18:30,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 07:18:31,549 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 07:18:32,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454550298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:32,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 07:18:32,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 4, 4] total 12 [2024-11-09 07:18:32,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136736187] [2024-11-09 07:18:32,371 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 07:18:32,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:18:32,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:18:32,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:18:32,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:18:32,378 INFO L87 Difference]: Start difference. First operand 469 states and 566 transitions. Second operand has 12 states, 12 states have (on average 35.416666666666664) internal successors, (425), 12 states have internal predecessors, (425), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-09 07:18:34,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:34,157 INFO L93 Difference]: Finished difference Result 1022 states and 1248 transitions. [2024-11-09 07:18:34,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:18:34,158 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 35.416666666666664) internal successors, (425), 12 states have internal predecessors, (425), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 196 [2024-11-09 07:18:34,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:34,162 INFO L225 Difference]: With dead ends: 1022 [2024-11-09 07:18:34,163 INFO L226 Difference]: Without dead ends: 1022 [2024-11-09 07:18:34,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1175 GetRequests, 1161 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-09 07:18:34,164 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 1130 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:34,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 2818 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 07:18:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-11-09 07:18:34,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 942. [2024-11-09 07:18:34,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 906 states have (on average 1.1876379690949228) internal successors, (1076), 919 states have internal predecessors, (1076), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (36), 20 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-09 07:18:34,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1142 transitions. [2024-11-09 07:18:34,195 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1142 transitions. Word has length 196 [2024-11-09 07:18:34,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:34,197 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1142 transitions. [2024-11-09 07:18:34,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 35.416666666666664) internal successors, (425), 12 states have internal predecessors, (425), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-09 07:18:34,198 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1142 transitions. [2024-11-09 07:18:34,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-11-09 07:18:34,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:34,212 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:18:34,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 07:18:34,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-09 07:18:34,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (21)] Forceful destruction successful, exit code 0 [2024-11-09 07:18:34,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:18:34,813 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:18:34,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:34,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1763226548, now seen corresponding path program 1 times [2024-11-09 07:18:34,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:18:34,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914458818] [2024-11-09 07:18:34,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:34,817 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 07:18:34,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:18:34,818 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:18:34,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (24)] Waiting until timeout for monitored process [2024-11-09 07:18:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:37,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:18:37,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 179 proven. 10 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2024-11-09 07:18:37,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 115 proven. 71 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2024-11-09 07:18:37,945 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:18:37,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914458818] [2024-11-09 07:18:37,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914458818] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:37,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [748481890] [2024-11-09 07:18:37,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:37,946 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:18:37,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:18:37,949 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:18:37,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-09 07:18:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:42,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:18:42,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 179 proven. 10 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2024-11-09 07:18:42,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:42,598 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 115 proven. 71 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2024-11-09 07:18:42,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [748481890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:42,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237425901] [2024-11-09 07:18:42,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:42,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:42,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:42,603 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:18:42,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 07:18:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:45,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:18:45,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 208 proven. 3 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-09 07:18:45,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:45,415 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 132 proven. 31 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2024-11-09 07:18:45,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237425901] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:45,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 07:18:45,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 6, 6] total 20 [2024-11-09 07:18:45,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519666561] [2024-11-09 07:18:45,417 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 07:18:45,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 07:18:45,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:18:45,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 07:18:45,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-09 07:18:45,421 INFO L87 Difference]: Start difference. First operand 942 states and 1142 transitions. Second operand has 20 states, 20 states have (on average 12.3) internal successors, (246), 20 states have internal predecessors, (246), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:18:46,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:46,765 INFO L93 Difference]: Finished difference Result 964 states and 1187 transitions. [2024-11-09 07:18:46,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 07:18:46,769 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 12.3) internal successors, (246), 20 states have internal predecessors, (246), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 525 [2024-11-09 07:18:46,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:46,772 INFO L225 Difference]: With dead ends: 964 [2024-11-09 07:18:46,773 INFO L226 Difference]: Without dead ends: 958 [2024-11-09 07:18:46,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3163 GetRequests, 3126 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1079, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 07:18:46,774 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 24 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:46,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3825 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 07:18:46,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-09 07:18:46,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 954. [2024-11-09 07:18:46,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 918 states have (on average 1.1895424836601307) internal successors, (1092), 931 states have internal predecessors, (1092), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (36), 20 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-09 07:18:46,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1158 transitions. [2024-11-09 07:18:46,802 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1158 transitions. Word has length 525 [2024-11-09 07:18:46,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:46,802 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1158 transitions. [2024-11-09 07:18:46,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.3) internal successors, (246), 20 states have internal predecessors, (246), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:18:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1158 transitions. [2024-11-09 07:18:46,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-09 07:18:46,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:46,814 INFO L215 NwaCegarLoop]: trace histogram [36, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:18:46,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 07:18:47,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (24)] Forceful destruction successful, exit code 0 [2024-11-09 07:18:47,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2024-11-09 07:18:47,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:18:47,416 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:18:47,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:47,416 INFO L85 PathProgramCache]: Analyzing trace with hash 617196492, now seen corresponding path program 2 times [2024-11-09 07:18:47,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:18:47,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44015276] [2024-11-09 07:18:47,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:18:47,419 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 07:18:47,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:18:47,420 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:18:47,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (27)] Waiting until timeout for monitored process [2024-11-09 07:18:50,295 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:18:50,295 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:18:50,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 07:18:50,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 443 proven. 55 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2024-11-09 07:18:50,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:51,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 115 proven. 380 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-09 07:18:51,537 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:18:51,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44015276] [2024-11-09 07:18:51,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44015276] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:51,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1108669890] [2024-11-09 07:18:51,538 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:18:51,538 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:18:51,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:18:51,539 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:18:51,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-09 07:18:57,453 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:18:57,454 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:18:57,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 07:18:57,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:57,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 443 proven. 55 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2024-11-09 07:18:57,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:57,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 115 proven. 380 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-09 07:18:57,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1108669890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:57,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156175292] [2024-11-09 07:18:57,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:18:57,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:57,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:57,978 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:18:57,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 07:19:00,658 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:19:00,658 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:19:00,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:19:00,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:19:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 0 proven. 634 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2024-11-09 07:19:02,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:19:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 0 proven. 634 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2024-11-09 07:19:05,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156175292] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:19:05,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 07:19:05,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 7, 7] total 36 [2024-11-09 07:19:05,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459389750] [2024-11-09 07:19:05,328 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 07:19:05,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-09 07:19:05,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:19:05,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-09 07:19:05,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1022, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 07:19:05,337 INFO L87 Difference]: Start difference. First operand 954 states and 1158 transitions. Second operand has 36 states, 36 states have (on average 31.333333333333332) internal successors, (1128), 36 states have internal predecessors, (1128), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-09 07:19:18,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:19:18,981 INFO L93 Difference]: Finished difference Result 2331 states and 2847 transitions. [2024-11-09 07:19:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 07:19:18,983 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 31.333333333333332) internal successors, (1128), 36 states have internal predecessors, (1128), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 549 [2024-11-09 07:19:18,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:19:18,990 INFO L225 Difference]: With dead ends: 2331 [2024-11-09 07:19:18,990 INFO L226 Difference]: Without dead ends: 2327 [2024-11-09 07:19:18,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3317 GetRequests, 3258 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 07:19:18,994 INFO L432 NwaCegarLoop]: 1319 mSDtfsCounter, 5283 mSDsluCounter, 24704 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 26023 SdHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:19:18,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5337 Valid, 26023 Invalid, 2321 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [542 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2024-11-09 07:19:18,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2024-11-09 07:19:19,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 2244. [2024-11-09 07:19:19,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 2169 states have (on average 1.1784232365145229) internal successors, (2556), 2197 states have internal predecessors, (2556), 69 states have call successors, (69), 4 states have call predecessors, (69), 4 states have return successors, (87), 47 states have call predecessors, (87), 67 states have call successors, (87) [2024-11-09 07:19:19,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 2712 transitions. [2024-11-09 07:19:19,045 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 2712 transitions. Word has length 549 [2024-11-09 07:19:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:19:19,046 INFO L471 AbstractCegarLoop]: Abstraction has 2244 states and 2712 transitions. [2024-11-09 07:19:19,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 31.333333333333332) internal successors, (1128), 36 states have internal predecessors, (1128), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-09 07:19:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 2712 transitions. [2024-11-09 07:19:19,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1222 [2024-11-09 07:19:19,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:19:19,062 INFO L215 NwaCegarLoop]: trace histogram [66, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:19:19,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (27)] Ended with exit code 0 [2024-11-09 07:19:19,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-09 07:19:19,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2024-11-09 07:19:19,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:19:19,663 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:19:19,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:19:19,664 INFO L85 PathProgramCache]: Analyzing trace with hash 215325438, now seen corresponding path program 3 times [2024-11-09 07:19:19,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:19:19,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191014278] [2024-11-09 07:19:19,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:19:19,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:19:19,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:19:19,669 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 07:19:19,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3620390-32a0-4cf5-8fad-a0ccc97ca9e2/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 (30)] Waiting until timeout for monitored process