./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh --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 f0735ebc421a940bb70b06777060abaef432af6ff0cfdeb82bfa2e45a81b4e11 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:41:01,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:41:01,241 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-12-02 14:41:01,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:41:01,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:41:01,270 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:41:01,271 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:41:01,271 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:41:01,272 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:41:01,273 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:41:01,273 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:41:01,274 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:41:01,274 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:41:01,275 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:41:01,275 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:41:01,276 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:41:01,276 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:41:01,277 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:41:01,277 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:41:01,278 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:41:01,279 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:41:01,279 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:41:01,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 14:41:01,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 14:41:01,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:41:01,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:41:01,282 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:41:01,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:41:01,283 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:41:01,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:41:01,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:41:01,284 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 14:41:01,284 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 14:41:01,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:41:01,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:41:01,285 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 14:41:01,285 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:41:01,286 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:41:01,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:41:01,286 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:41:01,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:41:01,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:41:01,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:41:01,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:41:01,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:41:01,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:41:01,288 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:41:01,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:41:01,288 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:41:01,288 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:41:01,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:41:01,288 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_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0735ebc421a940bb70b06777060abaef432af6ff0cfdeb82bfa2e45a81b4e11 [2023-12-02 14:41:01,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:41:01,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:41:01,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:41:01,534 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:41:01,534 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:41:01,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i [2023-12-02 14:41:04,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:41:04,647 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:41:04,648 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i [2023-12-02 14:41:04,667 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/data/ac861fe3b/154109b363cc45f2b4d2b4c59278da94/FLAG9243c75b8 [2023-12-02 14:41:04,683 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/data/ac861fe3b/154109b363cc45f2b4d2b4c59278da94 [2023-12-02 14:41:04,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:41:04,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:41:04,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:41:04,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:41:04,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:41:04,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:41:04" (1/1) ... [2023-12-02 14:41:04,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a440c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:04, skipping insertion in model container [2023-12-02 14:41:04,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:41:04" (1/1) ... [2023-12-02 14:41:04,765 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:41:05,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:41:05,256 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-12-02 14:41:05,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6635209f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:05, skipping insertion in model container [2023-12-02 14:41:05,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:41:05,258 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-12-02 14:41:05,259 INFO L158 Benchmark]: Toolchain (without parser) took 571.49ms. Allocated memory is still 146.8MB. Free memory was 97.3MB in the beginning and 78.1MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 14:41:05,260 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:41:05,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 568.98ms. Allocated memory is still 146.8MB. Free memory was 97.3MB in the beginning and 78.1MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 14:41:05,262 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 568.98ms. Allocated memory is still 146.8MB. Free memory was 97.3MB in the beginning and 78.1MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 815]: 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_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh --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 f0735ebc421a940bb70b06777060abaef432af6ff0cfdeb82bfa2e45a81b4e11 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:41:07,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:41:07,093 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-12-02 14:41:07,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:41:07,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:41:07,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:41:07,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:41:07,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:41:07,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:41:07,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:41:07,133 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:41:07,134 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:41:07,134 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:41:07,135 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:41:07,135 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:41:07,136 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:41:07,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 14:41:07,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 14:41:07,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:41:07,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:41:07,139 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:41:07,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:41:07,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:41:07,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:41:07,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:41:07,141 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 14:41:07,141 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 14:41:07,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:41:07,142 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:41:07,142 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 14:41:07,143 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 14:41:07,143 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 14:41:07,143 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:41:07,144 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:41:07,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:41:07,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:41:07,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:41:07,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 14:41:07,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:41:07,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:41:07,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:41:07,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:41:07,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:41:07,146 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 14:41:07,146 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:07,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:41:07,147 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:41:07,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:41:07,147 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0735ebc421a940bb70b06777060abaef432af6ff0cfdeb82bfa2e45a81b4e11 [2023-12-02 14:41:07,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:41:07,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:41:07,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:41:07,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:41:07,513 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:41:07,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i [2023-12-02 14:41:10,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:41:10,668 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:41:10,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i [2023-12-02 14:41:10,687 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/data/e6d7af58a/c93d3ebb4b9840749488c2be0504184c/FLAG26ce19b6d [2023-12-02 14:41:10,700 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/data/e6d7af58a/c93d3ebb4b9840749488c2be0504184c [2023-12-02 14:41:10,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:41:10,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:41:10,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:41:10,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:41:10,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:41:10,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:41:10" (1/1) ... [2023-12-02 14:41:10,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f43d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:10, skipping insertion in model container [2023-12-02 14:41:10,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:41:10" (1/1) ... [2023-12-02 14:41:10,775 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:41:11,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:41:11,229 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 14:41:11,239 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:41:11,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:41:11,357 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:41:11,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:41:11,464 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:41:11,471 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:41:11,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11 WrapperNode [2023-12-02 14:41:11,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:41:11,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:41:11,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:41:11,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:41:11,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,563 INFO L138 Inliner]: procedures = 211, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 887 [2023-12-02 14:41:11,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:41:11,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:41:11,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:41:11,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:41:11,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,643 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:41:11,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:41:11,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:41:11,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:41:11,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (1/1) ... [2023-12-02 14:41:11,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:41:11,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:41:11,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:41:11,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:41:11,745 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-12-02 14:41:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-12-02 14:41:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 14:41:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 14:41:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 14:41:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 14:41:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:41:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 14:41:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 14:41:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:41:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 14:41:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 14:41:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 14:41:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 14:41:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 14:41:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:41:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 14:41:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:41:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:41:11,929 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:41:11,931 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:41:17,817 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:41:17,854 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:41:17,855 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-12-02 14:41:17,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:41:17 BoogieIcfgContainer [2023-12-02 14:41:17,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:41:17,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:41:17,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:41:17,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:41:17,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:41:10" (1/3) ... [2023-12-02 14:41:17,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d71fd26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:41:17, skipping insertion in model container [2023-12-02 14:41:17,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:11" (2/3) ... [2023-12-02 14:41:17,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d71fd26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:41:17, skipping insertion in model container [2023-12-02 14:41:17,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:41:17" (3/3) ... [2023-12-02 14:41:17,864 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test2-1.i [2023-12-02 14:41:17,881 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:41:17,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 14:41:17,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:41:17,929 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32a17fc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:41:17,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 14:41:17,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 166 states have (on average 1.680722891566265) internal successors, (279), 175 states have internal predecessors, (279), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 14:41:17,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 14:41:17,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:17,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 14:41:17,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:17,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1113937082, now seen corresponding path program 1 times [2023-12-02 14:41:17,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:17,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911086085] [2023-12-02 14:41:17,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:17,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:17,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:17,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:17,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 14:41:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:18,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 14:41:18,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:41:18,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:41:18,188 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:18,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911086085] [2023-12-02 14:41:18,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911086085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:41:18,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:41:18,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:41:18,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204459843] [2023-12-02 14:41:18,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:41:18,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 14:41:18,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:18,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 14:41:18,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:41:18,221 INFO L87 Difference]: Start difference. First operand has 182 states, 166 states have (on average 1.680722891566265) internal successors, (279), 175 states have internal predecessors, (279), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:41:18,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:18,265 INFO L93 Difference]: Finished difference Result 180 states and 236 transitions. [2023-12-02 14:41:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 14:41:18,267 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-12-02 14:41:18,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:18,275 INFO L225 Difference]: With dead ends: 180 [2023-12-02 14:41:18,275 INFO L226 Difference]: Without dead ends: 179 [2023-12-02 14:41:18,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:41:18,279 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:18,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:41:18,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-02 14:41:18,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-12-02 14:41:18,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 165 states have (on average 1.3151515151515152) internal successors, (217), 172 states have internal predecessors, (217), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 14:41:18,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 235 transitions. [2023-12-02 14:41:18,320 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 235 transitions. Word has length 6 [2023-12-02 14:41:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:18,321 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 235 transitions. [2023-12-02 14:41:18,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:41:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 235 transitions. [2023-12-02 14:41:18,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 14:41:18,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:18,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:41:18,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:41:18,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:18,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:18,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:18,523 INFO L85 PathProgramCache]: Analyzing trace with hash -437548606, now seen corresponding path program 1 times [2023-12-02 14:41:18,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:18,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991859793] [2023-12-02 14:41:18,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:18,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:18,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:18,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:18,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 14:41:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:18,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:41:18,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:18,749 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:41:18,750 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:41:18,751 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:41:18,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-12-02 14:41:18,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:41:18,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-02 14:41:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:41:18,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:41:18,866 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:18,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991859793] [2023-12-02 14:41:18,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991859793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:41:18,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:41:18,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:41:18,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820483240] [2023-12-02 14:41:18,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:41:18,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:41:18,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:18,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:41:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:41:18,870 INFO L87 Difference]: Start difference. First operand 179 states and 235 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:41:23,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:41:25,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:41:26,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:26,213 INFO L93 Difference]: Finished difference Result 293 states and 392 transitions. [2023-12-02 14:41:26,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:41:26,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-12-02 14:41:26,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:26,217 INFO L225 Difference]: With dead ends: 293 [2023-12-02 14:41:26,217 INFO L226 Difference]: Without dead ends: 293 [2023-12-02 14:41:26,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:41:26,219 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 142 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:26,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 551 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2023-12-02 14:41:26,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-02 14:41:26,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 181. [2023-12-02 14:41:26,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 167 states have (on average 1.311377245508982) internal successors, (219), 174 states have internal predecessors, (219), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 14:41:26,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 237 transitions. [2023-12-02 14:41:26,240 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 237 transitions. Word has length 8 [2023-12-02 14:41:26,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:26,240 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 237 transitions. [2023-12-02 14:41:26,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:41:26,241 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 237 transitions. [2023-12-02 14:41:26,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 14:41:26,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:26,244 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:41:26,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 14:41:26,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:26,445 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:26,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash 60965620, now seen corresponding path program 1 times [2023-12-02 14:41:26,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:26,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716832017] [2023-12-02 14:41:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:26,447 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:26,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:26,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:26,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 14:41:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:26,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:41:26,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:41:26,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:41:26,861 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:26,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716832017] [2023-12-02 14:41:26,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716832017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:41:26,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:41:26,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:41:26,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481717807] [2023-12-02 14:41:26,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:41:26,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:41:26,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:26,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:41:26,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:41:26,864 INFO L87 Difference]: Start difference. First operand 181 states and 237 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:41:26,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:26,999 INFO L93 Difference]: Finished difference Result 185 states and 233 transitions. [2023-12-02 14:41:27,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:41:27,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2023-12-02 14:41:27,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:27,002 INFO L225 Difference]: With dead ends: 185 [2023-12-02 14:41:27,002 INFO L226 Difference]: Without dead ends: 185 [2023-12-02 14:41:27,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:41:27,004 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 36 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:27,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 585 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:41:27,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-02 14:41:27,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 184. [2023-12-02 14:41:27,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 170 states have (on average 1.2588235294117647) internal successors, (214), 177 states have internal predecessors, (214), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 14:41:27,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 232 transitions. [2023-12-02 14:41:27,018 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 232 transitions. Word has length 64 [2023-12-02 14:41:27,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:27,018 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 232 transitions. [2023-12-02 14:41:27,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:41:27,018 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 232 transitions. [2023-12-02 14:41:27,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 14:41:27,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:27,022 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:41:27,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 14:41:27,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:27,223 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:27,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:27,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1814858344, now seen corresponding path program 1 times [2023-12-02 14:41:27,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:27,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590360980] [2023-12-02 14:41:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:27,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:27,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:27,226 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:27,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-02 14:41:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:27,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:41:27,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:27,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:41:27,985 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:41:27,985 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:27,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590360980] [2023-12-02 14:41:27,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590360980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:41:27,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:41:27,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:41:27,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303971292] [2023-12-02 14:41:27,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:41:27,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:41:27,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:27,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:41:27,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:41:27,988 INFO L87 Difference]: Start difference. First operand 184 states and 232 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:41:28,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:28,639 INFO L93 Difference]: Finished difference Result 285 states and 360 transitions. [2023-12-02 14:41:28,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:41:28,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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 64 [2023-12-02 14:41:28,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:28,641 INFO L225 Difference]: With dead ends: 285 [2023-12-02 14:41:28,642 INFO L226 Difference]: Without dead ends: 285 [2023-12-02 14:41:28,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:41:28,643 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 81 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:28,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 474 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 14:41:28,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-02 14:41:28,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 281. [2023-12-02 14:41:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 262 states have (on average 1.2557251908396947) internal successors, (329), 274 states have internal predecessors, (329), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 14:41:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 357 transitions. [2023-12-02 14:41:28,654 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 357 transitions. Word has length 64 [2023-12-02 14:41:28,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:28,655 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 357 transitions. [2023-12-02 14:41:28,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:41:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 357 transitions. [2023-12-02 14:41:28,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 14:41:28,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:28,658 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:41:28,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-02 14:41:28,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:28,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:28,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:28,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1357657435, now seen corresponding path program 1 times [2023-12-02 14:41:28,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:28,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511366268] [2023-12-02 14:41:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:28,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:28,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:28,862 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:28,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 14:41:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:29,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:41:29,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:41:29,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:41:29,381 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:29,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511366268] [2023-12-02 14:41:29,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511366268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:41:29,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:41:29,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:41:29,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321460686] [2023-12-02 14:41:29,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:41:29,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:41:29,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:29,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:41:29,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:41:29,383 INFO L87 Difference]: Start difference. First operand 281 states and 357 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 14:41:29,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:29,453 INFO L93 Difference]: Finished difference Result 283 states and 360 transitions. [2023-12-02 14:41:29,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:41:29,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2023-12-02 14:41:29,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:29,457 INFO L225 Difference]: With dead ends: 283 [2023-12-02 14:41:29,457 INFO L226 Difference]: Without dead ends: 283 [2023-12-02 14:41:29,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:41:29,458 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:29,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 653 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:41:29,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-12-02 14:41:29,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2023-12-02 14:41:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 263 states have (on average 1.258555133079848) internal successors, (331), 276 states have internal predecessors, (331), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-12-02 14:41:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 360 transitions. [2023-12-02 14:41:29,471 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 360 transitions. Word has length 77 [2023-12-02 14:41:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:29,472 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 360 transitions. [2023-12-02 14:41:29,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 14:41:29,472 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 360 transitions. [2023-12-02 14:41:29,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 14:41:29,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:29,474 INFO L195 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] [2023-12-02 14:41:29,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 14:41:29,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:29,675 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:29,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:29,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1158901783, now seen corresponding path program 1 times [2023-12-02 14:41:29,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:29,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135339692] [2023-12-02 14:41:29,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:29,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:29,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:29,677 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:29,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 14:41:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:30,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:41:30,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:30,212 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 14:41:30,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:41:30,290 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:30,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135339692] [2023-12-02 14:41:30,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135339692] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:30,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [344225414] [2023-12-02 14:41:30,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:30,291 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:30,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:41:30,292 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:41:30,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 14:41:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:30,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:41:30,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:30,994 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 14:41:30,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:41:31,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [344225414] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:31,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190111812] [2023-12-02 14:41:31,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:31,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:41:31,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:41:31,040 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:41:31,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 14:41:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:31,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:41:31,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:31,546 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:41:31,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:31,670 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:41:31,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190111812] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:31,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 14:41:31,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2023-12-02 14:41:31,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520854544] [2023-12-02 14:41:31,671 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 14:41:31,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 14:41:31,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:31,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 14:41:31,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-12-02 14:41:31,674 INFO L87 Difference]: Start difference. First operand 283 states and 360 transitions. Second operand has 11 states, 8 states have (on average 10.75) internal successors, (86), 11 states have internal predecessors, (86), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:41:32,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:32,091 INFO L93 Difference]: Finished difference Result 295 states and 379 transitions. [2023-12-02 14:41:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 14:41:32,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 10.75) internal successors, (86), 11 states have internal predecessors, (86), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79 [2023-12-02 14:41:32,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:32,095 INFO L225 Difference]: With dead ends: 295 [2023-12-02 14:41:32,095 INFO L226 Difference]: Without dead ends: 295 [2023-12-02 14:41:32,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2023-12-02 14:41:32,096 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 16 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:32,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1504 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 14:41:32,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-12-02 14:41:32,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 293. [2023-12-02 14:41:32,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 272 states have (on average 1.2794117647058822) internal successors, (348), 285 states have internal predecessors, (348), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-12-02 14:41:32,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 377 transitions. [2023-12-02 14:41:32,110 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 377 transitions. Word has length 79 [2023-12-02 14:41:32,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:32,110 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 377 transitions. [2023-12-02 14:41:32,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 10.75) internal successors, (86), 11 states have internal predecessors, (86), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:41:32,111 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 377 transitions. [2023-12-02 14:41:32,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 14:41:32,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:32,113 INFO L195 NwaCegarLoop]: trace histogram [8, 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] [2023-12-02 14:41:32,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 14:41:32,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-02 14:41:32,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 14:41:32,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:32,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:32,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:32,719 INFO L85 PathProgramCache]: Analyzing trace with hash -298832475, now seen corresponding path program 2 times [2023-12-02 14:41:32,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:32,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614854859] [2023-12-02 14:41:32,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 14:41:32,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:32,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:32,721 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:32,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-02 14:41:33,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 14:41:33,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:41:33,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:41:33,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:33,063 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:41:33,063 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:41:33,064 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:41:33,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-12-02 14:41:33,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:41:33,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-02 14:41:33,153 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-02 14:41:33,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:41:33,154 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:33,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614854859] [2023-12-02 14:41:33,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614854859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:41:33,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:41:33,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:41:33,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814500976] [2023-12-02 14:41:33,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:41:33,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:41:33,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:33,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:41:33,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:41:33,157 INFO L87 Difference]: Start difference. First operand 293 states and 377 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:41:37,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:41:40,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:41:40,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:40,654 INFO L93 Difference]: Finished difference Result 382 states and 507 transitions. [2023-12-02 14:41:40,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:41:40,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2023-12-02 14:41:40,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:40,657 INFO L225 Difference]: With dead ends: 382 [2023-12-02 14:41:40,657 INFO L226 Difference]: Without dead ends: 382 [2023-12-02 14:41:40,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:41:40,658 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 130 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:40,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 546 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2023-12-02 14:41:40,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-12-02 14:41:40,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 295. [2023-12-02 14:41:40,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 274 states have (on average 1.2773722627737227) internal successors, (350), 287 states have internal predecessors, (350), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-12-02 14:41:40,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 379 transitions. [2023-12-02 14:41:40,670 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 379 transitions. Word has length 85 [2023-12-02 14:41:40,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:40,670 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 379 transitions. [2023-12-02 14:41:40,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:41:40,671 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 379 transitions. [2023-12-02 14:41:40,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-02 14:41:40,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:40,673 INFO L195 NwaCegarLoop]: trace histogram [8, 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] [2023-12-02 14:41:40,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-02 14:41:40,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:40,874 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:40,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:40,874 INFO L85 PathProgramCache]: Analyzing trace with hash -711645557, now seen corresponding path program 1 times [2023-12-02 14:41:40,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:40,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357309677] [2023-12-02 14:41:40,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:40,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:40,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:40,875 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:40,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-02 14:41:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:41,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:41:41,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 14:41:41,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:41,626 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 14:41:41,626 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:41,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357309677] [2023-12-02 14:41:41,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357309677] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:41,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1370944840] [2023-12-02 14:41:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:41,626 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:41,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:41:41,627 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:41:41,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 14:41:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:42,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:41:42,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-02 14:41:42,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:41:42,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1370944840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:41:42,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 14:41:42,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 8] total 15 [2023-12-02 14:41:42,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869463801] [2023-12-02 14:41:42,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:41:42,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:41:42,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:42,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:41:42,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-02 14:41:42,288 INFO L87 Difference]: Start difference. First operand 295 states and 379 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2023-12-02 14:41:42,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:42,401 INFO L93 Difference]: Finished difference Result 337 states and 421 transitions. [2023-12-02 14:41:42,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:41:42,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 124 [2023-12-02 14:41:42,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:42,404 INFO L225 Difference]: With dead ends: 337 [2023-12-02 14:41:42,404 INFO L226 Difference]: Without dead ends: 337 [2023-12-02 14:41:42,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-02 14:41:42,405 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 8 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:42,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 388 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:41:42,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-12-02 14:41:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2023-12-02 14:41:42,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 314 states have (on average 1.2420382165605095) internal successors, (390), 327 states have internal predecessors, (390), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-12-02 14:41:42,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 419 transitions. [2023-12-02 14:41:42,417 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 419 transitions. Word has length 124 [2023-12-02 14:41:42,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:42,418 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 419 transitions. [2023-12-02 14:41:42,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2023-12-02 14:41:42,419 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 419 transitions. [2023-12-02 14:41:42,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-02 14:41:42,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:42,421 INFO L195 NwaCegarLoop]: trace histogram [8, 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] [2023-12-02 14:41:42,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-02 14:41:42,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 14:41:42,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -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_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:42,821 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:42,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash 286790543, now seen corresponding path program 1 times [2023-12-02 14:41:42,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:42,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963340380] [2023-12-02 14:41:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:42,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:42,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:42,824 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:42,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-02 14:41:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:43,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:41:43,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 14:41:43,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 14:41:43,766 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:43,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963340380] [2023-12-02 14:41:43,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963340380] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:43,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [590604025] [2023-12-02 14:41:43,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:43,767 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:43,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:41:43,768 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:41:43,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 14:41:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:44,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:41:44,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-02 14:41:44,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:41:44,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [590604025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:41:44,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 14:41:44,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 16 [2023-12-02 14:41:44,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551905967] [2023-12-02 14:41:44,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:41:44,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:41:44,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:44,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:41:44,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-12-02 14:41:44,776 INFO L87 Difference]: Start difference. First operand 335 states and 419 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2023-12-02 14:41:47,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:41:49,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:41:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:50,782 INFO L93 Difference]: Finished difference Result 260 states and 318 transitions. [2023-12-02 14:41:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:41:50,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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 124 [2023-12-02 14:41:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:50,784 INFO L225 Difference]: With dead ends: 260 [2023-12-02 14:41:50,784 INFO L226 Difference]: Without dead ends: 260 [2023-12-02 14:41:50,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-12-02 14:41:50,785 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 285 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:50,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 300 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 53 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2023-12-02 14:41:50,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-02 14:41:50,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2023-12-02 14:41:50,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 244 states have (on average 1.2254098360655739) internal successors, (299), 252 states have internal predecessors, (299), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-12-02 14:41:50,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 318 transitions. [2023-12-02 14:41:50,794 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 318 transitions. Word has length 124 [2023-12-02 14:41:50,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:50,795 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 318 transitions. [2023-12-02 14:41:50,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2023-12-02 14:41:50,795 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 318 transitions. [2023-12-02 14:41:50,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 14:41:50,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:50,797 INFO L195 NwaCegarLoop]: trace histogram [8, 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] [2023-12-02 14:41:50,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-02 14:41:51,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 14:41:51,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -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_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:51,198 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:51,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:51,198 INFO L85 PathProgramCache]: Analyzing trace with hash -512692903, now seen corresponding path program 1 times [2023-12-02 14:41:51,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:51,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830059769] [2023-12-02 14:41:51,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:51,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:51,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:51,201 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:51,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-02 14:41:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:51,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:41:51,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:51,890 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 14:41:51,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 14:41:52,120 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:52,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830059769] [2023-12-02 14:41:52,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830059769] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:52,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [580162762] [2023-12-02 14:41:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:52,121 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:52,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:41:52,122 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:41:52,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 14:41:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:52,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:41:52,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:52,907 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-02 14:41:52,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:41:52,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [580162762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:41:52,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 14:41:52,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 16 [2023-12-02 14:41:52,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392608875] [2023-12-02 14:41:52,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:41:52,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:41:52,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:52,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:41:52,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-12-02 14:41:52,909 INFO L87 Difference]: Start difference. First operand 260 states and 318 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2023-12-02 14:41:53,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:53,033 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2023-12-02 14:41:53,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:41:53,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 132 [2023-12-02 14:41:53,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:53,036 INFO L225 Difference]: With dead ends: 244 [2023-12-02 14:41:53,036 INFO L226 Difference]: Without dead ends: 244 [2023-12-02 14:41:53,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-12-02 14:41:53,037 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 39 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:53,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 546 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:41:53,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-02 14:41:53,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 243. [2023-12-02 14:41:53,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 227 states have (on average 1.1938325991189427) internal successors, (271), 235 states have internal predecessors, (271), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-12-02 14:41:53,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 290 transitions. [2023-12-02 14:41:53,046 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 290 transitions. Word has length 132 [2023-12-02 14:41:53,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:53,046 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 290 transitions. [2023-12-02 14:41:53,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2023-12-02 14:41:53,046 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 290 transitions. [2023-12-02 14:41:53,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 14:41:53,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:53,048 INFO L195 NwaCegarLoop]: trace histogram [8, 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] [2023-12-02 14:41:53,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 14:41:53,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-02 14:41:53,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:53,449 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:53,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:53,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1511243275, now seen corresponding path program 1 times [2023-12-02 14:41:53,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:53,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554393271] [2023-12-02 14:41:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:53,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:53,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:53,451 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:53,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 14:41:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:54,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:41:54,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 14:41:54,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:54,376 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 14:41:54,376 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:54,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554393271] [2023-12-02 14:41:54,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554393271] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:54,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [784990048] [2023-12-02 14:41:54,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:54,377 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:54,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:41:54,378 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:41:54,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 14:41:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:55,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:41:55,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:55,423 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 14:41:55,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:55,495 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 14:41:55,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [784990048] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:55,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94966024] [2023-12-02 14:41:55,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:55,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:41:55,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:41:55,497 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:41:55,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 14:41:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:56,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 14:41:56,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 14:41:56,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:56,532 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 14:41:56,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94966024] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:56,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 14:41:56,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2023-12-02 14:41:56,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354777094] [2023-12-02 14:41:56,533 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 14:41:56,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-02 14:41:56,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:56,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-02 14:41:56,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2023-12-02 14:41:56,535 INFO L87 Difference]: Start difference. First operand 243 states and 290 transitions. Second operand has 22 states, 18 states have (on average 7.944444444444445) internal successors, (143), 22 states have internal predecessors, (143), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:41:58,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:58,061 INFO L93 Difference]: Finished difference Result 262 states and 318 transitions. [2023-12-02 14:41:58,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-02 14:41:58,062 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 7.944444444444445) internal successors, (143), 22 states have internal predecessors, (143), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 132 [2023-12-02 14:41:58,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:58,064 INFO L225 Difference]: With dead ends: 262 [2023-12-02 14:41:58,064 INFO L226 Difference]: Without dead ends: 259 [2023-12-02 14:41:58,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=678, Invalid=1674, Unknown=0, NotChecked=0, Total=2352 [2023-12-02 14:41:58,065 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 34 mSDsluCounter, 3231 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:58,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3437 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:41:58,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-02 14:41:58,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 255. [2023-12-02 14:41:58,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 239 states have (on average 1.205020920502092) internal successors, (288), 247 states have internal predecessors, (288), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-12-02 14:41:58,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 307 transitions. [2023-12-02 14:41:58,071 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 307 transitions. Word has length 132 [2023-12-02 14:41:58,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:58,072 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 307 transitions. [2023-12-02 14:41:58,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 7.944444444444445) internal successors, (143), 22 states have internal predecessors, (143), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:41:58,072 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 307 transitions. [2023-12-02 14:41:58,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-02 14:41:58,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:58,073 INFO L195 NwaCegarLoop]: trace histogram [20, 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] [2023-12-02 14:41:58,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 14:41:58,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 14:41:58,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-02 14:41:58,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:41:58,674 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:41:58,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash -116489845, now seen corresponding path program 2 times [2023-12-02 14:41:58,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:58,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335176148] [2023-12-02 14:41:58,676 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 14:41:58,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:41:58,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:58,677 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:41:58,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-02 14:41:59,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 14:41:59,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:41:59,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 14:41:59,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 14:41:59,559 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:42:00,164 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 177 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-02 14:42:00,164 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:42:00,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335176148] [2023-12-02 14:42:00,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335176148] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:42:00,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1986602994] [2023-12-02 14:42:00,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 14:42:00,165 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:42:00,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:42:00,166 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:42:00,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 14:42:01,793 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 14:42:01,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:42:01,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 14:42:01,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:42:01,846 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 14:42:01,847 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:42:01,987 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 177 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-02 14:42:01,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1986602994] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:42:01,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40566045] [2023-12-02 14:42:01,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 14:42:01,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:42:01,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:42:01,988 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:42:01,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-02 14:42:02,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 14:42:02,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:42:02,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 14:42:02,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:42:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 124 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-02 14:42:02,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:42:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 124 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-02 14:42:03,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40566045] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:42:03,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 14:42:03,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 40 [2023-12-02 14:42:03,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519995852] [2023-12-02 14:42:03,817 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 14:42:03,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-02 14:42:03,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:42:03,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-02 14:42:03,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1147, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 14:42:03,820 INFO L87 Difference]: Start difference. First operand 255 states and 307 transitions. Second operand has 40 states, 36 states have (on average 4.472222222222222) internal successors, (161), 40 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:42:08,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:42:08,232 INFO L93 Difference]: Finished difference Result 291 states and 364 transitions. [2023-12-02 14:42:08,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-02 14:42:08,233 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 36 states have (on average 4.472222222222222) internal successors, (161), 40 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 144 [2023-12-02 14:42:08,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:42:08,235 INFO L225 Difference]: With dead ends: 291 [2023-12-02 14:42:08,235 INFO L226 Difference]: Without dead ends: 288 [2023-12-02 14:42:08,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 820 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2004 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=2454, Invalid=6666, Unknown=0, NotChecked=0, Total=9120 [2023-12-02 14:42:08,240 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 66 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 4634 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:42:08,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 4634 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 14:42:08,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-12-02 14:42:08,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 279. [2023-12-02 14:42:08,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 263 states have (on average 1.2281368821292775) internal successors, (323), 271 states have internal predecessors, (323), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-12-02 14:42:08,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 342 transitions. [2023-12-02 14:42:08,249 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 342 transitions. Word has length 144 [2023-12-02 14:42:08,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:42:08,249 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 342 transitions. [2023-12-02 14:42:08,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 36 states have (on average 4.472222222222222) internal successors, (161), 40 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:42:08,250 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 342 transitions. [2023-12-02 14:42:08,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-02 14:42:08,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:42:08,252 INFO L195 NwaCegarLoop]: trace histogram [44, 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] [2023-12-02 14:42:08,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 14:42:08,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-02 14:42:08,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-02 14:42:08,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:42:08,853 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 14:42:08,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:42:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1579423883, now seen corresponding path program 3 times [2023-12-02 14:42:08,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:42:08,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505469325] [2023-12-02 14:42:08,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 14:42:08,855 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:42:08,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:42:08,856 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 14:42:08,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-02 14:42:19,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2023-12-02 14:42:19,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:42:19,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 14:42:19,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:42:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 532 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-12-02 14:42:20,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:42:22,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 532 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-12-02 14:42:22,929 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:42:22,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505469325] [2023-12-02 14:42:22,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505469325] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:42:22,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2076782949] [2023-12-02 14:42:22,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 14:42:22,930 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:42:22,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:42:22,931 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:42:22,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 14:48:18,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2023-12-02 14:48:18,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:48:18,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 14:48:18,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:48:19,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 532 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-12-02 14:48:19,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:48:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 532 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-12-02 14:48:19,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2076782949] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:48:19,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556589800] [2023-12-02 14:48:19,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 14:48:19,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:48:19,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:48:19,451 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:48:19,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4249b5e9-2f3a-45d4-8bb8-83e6283eee6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process