./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E --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 c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:07:23,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:07:23,522 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 05:07:23,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:07:23,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:07:23,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:07:23,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:07:23,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:07:23,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:07:23,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:07:23,563 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:07:23,563 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:07:23,563 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:07:23,564 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:07:23,564 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:07:23,564 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:07:23,564 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:07:23,565 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:07:23,565 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:07:23,565 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:07:23,565 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:07:23,565 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:07:23,566 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 05:07:23,566 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 05:07:23,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:07:23,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:07:23,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:07:23,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:07:23,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:07:23,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:07:23,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:07:23,568 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 05:07:23,568 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 05:07:23,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:07:23,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:07:23,569 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:07:23,569 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:07:23,569 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:07:23,569 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:07:23,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:07:23,570 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:07:23,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:07:23,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:07:23,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:07:23,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:07:23,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:07:23,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:07:23,571 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:07:23,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:07:23,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:07:23,571 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:07:23,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:07:23,571 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E 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 -> c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b [2024-11-14 05:07:24,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:07:24,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:07:24,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:07:24,069 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:07:24,070 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:07:24,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i Unable to find full path for "g++" [2024-11-14 05:07:26,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:07:27,205 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:07:27,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2024-11-14 05:07:27,233 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/data/641daf3c9/ad265fd151b94b9da7c69a4d51e5a1d1/FLAGb63d8fefa [2024-11-14 05:07:27,255 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/data/641daf3c9/ad265fd151b94b9da7c69a4d51e5a1d1 [2024-11-14 05:07:27,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:07:27,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:07:27,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:07:27,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:07:27,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:07:27,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:07:27" (1/1) ... [2024-11-14 05:07:27,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e49491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:27, skipping insertion in model container [2024-11-14 05:07:27,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:07:27" (1/1) ... [2024-11-14 05:07:27,326 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:07:27,954 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,004 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,016 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,033 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,055 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,120 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,126 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,130 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,144 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,169 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,171 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,176 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,178 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,182 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,184 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,192 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,195 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,196 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,197 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,205 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:28,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:07:28,249 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-14 05:07:28,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@252521a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:28, skipping insertion in model container [2024-11-14 05:07:28,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:07:28,251 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 05:07:28,255 INFO L158 Benchmark]: Toolchain (without parser) took 992.70ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 69.0MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:07:28,259 INFO L158 Benchmark]: CDTParser took 2.23ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:07:28,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 987.92ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 69.0MB in the end (delta: 21.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:07:28,261 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.23ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 987.92ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 69.0MB in the end (delta: 21.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 769]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E --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 c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:07:31,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:07:32,124 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-14 05:07:32,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:07:32,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:07:32,184 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:07:32,185 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:07:32,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:07:32,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:07:32,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:07:32,189 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:07:32,189 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:07:32,189 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:07:32,189 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:07:32,189 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:07:32,190 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:07:32,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 05:07:32,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 05:07:32,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:07:32,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:07:32,191 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:07:32,191 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:07:32,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:07:32,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:07:32,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:07:32,191 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 05:07:32,191 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 05:07:32,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:07:32,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:07:32,195 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:07:32,195 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:07:32,195 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:07:32,195 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:07:32,196 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:07:32,197 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:07:32,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:07:32,197 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:07:32,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:07:32,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:07:32,198 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:07:32,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:07:32,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:07:32,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:07:32,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:07:32,199 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:07:32,199 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:07:32,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:07:32,200 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:07:32,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E 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 -> c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b [2024-11-14 05:07:32,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:07:32,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:07:32,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:07:32,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:07:32,598 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:07:32,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i Unable to find full path for "g++" [2024-11-14 05:07:35,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:07:35,926 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:07:35,927 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2024-11-14 05:07:35,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/data/4d4a241da/12306217bcc2471d91838d34962906d2/FLAG43b80461a [2024-11-14 05:07:36,006 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/data/4d4a241da/12306217bcc2471d91838d34962906d2 [2024-11-14 05:07:36,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:07:36,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:07:36,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:07:36,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:07:36,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:07:36,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:07:36" (1/1) ... [2024-11-14 05:07:36,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5580e5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:36, skipping insertion in model container [2024-11-14 05:07:36,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:07:36" (1/1) ... [2024-11-14 05:07:36,126 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:07:36,860 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:36,905 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:36,911 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:36,917 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:36,930 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:36,985 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:36,990 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:36,995 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,005 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,024 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,026 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,031 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,033 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,035 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,036 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,046 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,048 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,050 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,051 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,058 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:07:37,084 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 05:07:37,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:07:37,152 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,182 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,185 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,189 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,197 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,256 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,265 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,272 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,285 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,297 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,299 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,302 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,303 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,304 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,305 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,310 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,312 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,313 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,314 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,319 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:07:37,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:07:37,338 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:07:37,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:07:37,578 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:07:37,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37 WrapperNode [2024-11-14 05:07:37,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:07:37,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:07:37,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:07:37,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:07:37,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,736 INFO L138 Inliner]: procedures = 179, calls = 435, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1428 [2024-11-14 05:07:37,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:07:37,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:07:37,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:07:37,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:07:37,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:07:37,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:07:37,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:07:37,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:07:37,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (1/1) ... [2024-11-14 05:07:37,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:07:37,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:07:37,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:07:37,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:07:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 05:07:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 05:07:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:07:37,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:07:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 05:07:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 05:07:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:07:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:07:37,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:07:37,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:07:37,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:07:37,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 05:07:37,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:07:37,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:07:37,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:07:38,428 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:07:38,431 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:07:53,922 INFO L? ?]: Removed 206 outVars from TransFormulas that were not future-live. [2024-11-14 05:07:53,922 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:07:53,949 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:07:53,952 INFO L316 CfgBuilder]: Removed 77 assume(true) statements. [2024-11-14 05:07:53,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:07:53 BoogieIcfgContainer [2024-11-14 05:07:53,955 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:07:53,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:07:53,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:07:53,967 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:07:53,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:07:36" (1/3) ... [2024-11-14 05:07:53,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df905b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:07:53, skipping insertion in model container [2024-11-14 05:07:53,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:07:37" (2/3) ... [2024-11-14 05:07:53,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df905b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:07:53, skipping insertion in model container [2024-11-14 05:07:53,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:07:53" (3/3) ... [2024-11-14 05:07:53,971 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-3.i [2024-11-14 05:07:53,993 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:07:53,995 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test4-3.i that has 3 procedures, 270 locations, 1 initial locations, 44 loop locations, and 2 error locations. [2024-11-14 05:07:54,059 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:07:54,084 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5506eaf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:07:54,084 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:07:54,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 270 states, 249 states have (on average 1.6666666666666667) internal successors, (415), 261 states have internal predecessors, (415), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 05:07:54,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:07:54,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:07:54,110 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:07:54,111 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:07:54,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:07:54,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1627508310, now seen corresponding path program 1 times [2024-11-14 05:07:54,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:07:54,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385949202] [2024-11-14 05:07:54,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:07:54,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:07:54,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:07:54,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:07:54,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:07:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:07:54,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:07:54,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:07:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:07:54,614 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:07:54,615 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:07:54,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385949202] [2024-11-14 05:07:54,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385949202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:07:54,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:07:54,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:07:54,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657150838] [2024-11-14 05:07:54,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:07:54,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:07:54,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:07:54,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:07:54,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:07:54,680 INFO L87 Difference]: Start difference. First operand has 270 states, 249 states have (on average 1.6666666666666667) internal successors, (415), 261 states have internal predecessors, (415), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:07:55,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:07:55,140 INFO L93 Difference]: Finished difference Result 443 states and 586 transitions. [2024-11-14 05:07:55,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:07:55,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 05:07:55,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:07:55,161 INFO L225 Difference]: With dead ends: 443 [2024-11-14 05:07:55,161 INFO L226 Difference]: Without dead ends: 441 [2024-11-14 05:07:55,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:07:55,169 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 213 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:07:55,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 715 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:07:55,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-14 05:07:55,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 268. [2024-11-14 05:07:55,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 248 states have (on average 1.3185483870967742) internal successors, (327), 259 states have internal predecessors, (327), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 05:07:55,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 359 transitions. [2024-11-14 05:07:55,268 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 359 transitions. Word has length 11 [2024-11-14 05:07:55,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:07:55,269 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 359 transitions. [2024-11-14 05:07:55,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:07:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 359 transitions. [2024-11-14 05:07:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 05:07:55,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:07:55,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:07:55,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 05:07:55,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:07:55,478 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:07:55,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:07:55,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1064913440, now seen corresponding path program 1 times [2024-11-14 05:07:55,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:07:55,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030474732] [2024-11-14 05:07:55,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:07:55,485 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:07:55,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:07:55,489 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:07:55,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 05:07:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:07:56,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:07:56,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:07:56,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:07:56,833 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:07:56,833 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:07:56,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030474732] [2024-11-14 05:07:56,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030474732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:07:56,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:07:56,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:07:56,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474518593] [2024-11-14 05:07:56,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:07:56,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:07:56,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:07:56,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:07:56,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:07:56,838 INFO L87 Difference]: Start difference. First operand 268 states and 359 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:07:57,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:07:57,119 INFO L93 Difference]: Finished difference Result 271 states and 354 transitions. [2024-11-14 05:07:57,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:07:57,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-11-14 05:07:57,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:07:57,124 INFO L225 Difference]: With dead ends: 271 [2024-11-14 05:07:57,126 INFO L226 Difference]: Without dead ends: 271 [2024-11-14 05:07:57,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:07:57,128 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 12 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:07:57,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1279 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:07:57,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-14 05:07:57,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-14 05:07:57,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 251 states have (on average 1.2828685258964143) internal successors, (322), 262 states have internal predecessors, (322), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 05:07:57,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 354 transitions. [2024-11-14 05:07:57,167 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 354 transitions. Word has length 117 [2024-11-14 05:07:57,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:07:57,168 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 354 transitions. [2024-11-14 05:07:57,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:07:57,168 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 354 transitions. [2024-11-14 05:07:57,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 05:07:57,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:07:57,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:07:57,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:07:57,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:07:57,377 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:07:57,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:07:57,378 INFO L85 PathProgramCache]: Analyzing trace with hash -889787410, now seen corresponding path program 1 times [2024-11-14 05:07:57,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:07:57,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017089751] [2024-11-14 05:07:57,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:07:57,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:07:57,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:07:57,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:07:57,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 05:07:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:07:58,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:07:58,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:07:58,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:07:58,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:07:58,410 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:07:58,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017089751] [2024-11-14 05:07:58,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017089751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:07:58,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:07:58,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:07:58,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210482916] [2024-11-14 05:07:58,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:07:58,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:07:58,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:07:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:07:58,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:07:58,416 INFO L87 Difference]: Start difference. First operand 271 states and 354 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:07:58,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:07:58,564 INFO L93 Difference]: Finished difference Result 265 states and 344 transitions. [2024-11-14 05:07:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:07:58,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-11-14 05:07:58,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:07:58,571 INFO L225 Difference]: With dead ends: 265 [2024-11-14 05:07:58,571 INFO L226 Difference]: Without dead ends: 265 [2024-11-14 05:07:58,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:07:58,573 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 4 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:07:58,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 962 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:07:58,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-14 05:07:58,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2024-11-14 05:07:58,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 245 states have (on average 1.273469387755102) internal successors, (312), 256 states have internal predecessors, (312), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 05:07:58,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 344 transitions. [2024-11-14 05:07:58,588 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 344 transitions. Word has length 117 [2024-11-14 05:07:58,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:07:58,589 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 344 transitions. [2024-11-14 05:07:58,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:07:58,589 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 344 transitions. [2024-11-14 05:07:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 05:07:58,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:07:58,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:07:58,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 05:07:58,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:07:58,792 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:07:58,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:07:58,793 INFO L85 PathProgramCache]: Analyzing trace with hash 467222378, now seen corresponding path program 1 times [2024-11-14 05:07:58,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:07:58,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876310063] [2024-11-14 05:07:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:07:58,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:07:58,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:07:58,803 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:07:58,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 05:07:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:07:59,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:07:59,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:08:00,249 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:08:00,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:08:00,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876310063] [2024-11-14 05:08:00,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876310063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:08:00,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:08:00,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:08:00,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217130806] [2024-11-14 05:08:00,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:08:00,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:08:00,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:08:00,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:08:00,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:08:00,252 INFO L87 Difference]: Start difference. First operand 265 states and 344 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:08:00,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:00,884 INFO L93 Difference]: Finished difference Result 354 states and 450 transitions. [2024-11-14 05:08:00,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:08:00,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-11-14 05:08:00,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:00,900 INFO L225 Difference]: With dead ends: 354 [2024-11-14 05:08:00,900 INFO L226 Difference]: Without dead ends: 354 [2024-11-14 05:08:00,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:08:00,902 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 68 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:00,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 688 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:08:00,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-14 05:08:00,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 301. [2024-11-14 05:08:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 281 states have (on average 1.2384341637010676) internal successors, (348), 292 states have internal predecessors, (348), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 05:08:00,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 380 transitions. [2024-11-14 05:08:00,918 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 380 transitions. Word has length 117 [2024-11-14 05:08:00,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:00,919 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 380 transitions. [2024-11-14 05:08:00,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:08:00,919 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 380 transitions. [2024-11-14 05:08:00,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-14 05:08:00,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:08:00,922 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:08:00,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 05:08:01,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:08:01,122 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:08:01,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:08:01,123 INFO L85 PathProgramCache]: Analyzing trace with hash 535041804, now seen corresponding path program 1 times [2024-11-14 05:08:01,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:08:01,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092226836] [2024-11-14 05:08:01,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:01,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:08:01,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:08:01,127 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:08:01,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 05:08:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:02,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:08:02,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:08:02,206 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:08:02,206 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:08:02,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092226836] [2024-11-14 05:08:02,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092226836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:08:02,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:08:02,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:08:02,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545015982] [2024-11-14 05:08:02,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:08:02,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:08:02,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:08:02,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:08:02,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:08:02,210 INFO L87 Difference]: Start difference. First operand 301 states and 380 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:08:02,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:02,312 INFO L93 Difference]: Finished difference Result 304 states and 385 transitions. [2024-11-14 05:08:02,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:08:02,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 132 [2024-11-14 05:08:02,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:02,315 INFO L225 Difference]: With dead ends: 304 [2024-11-14 05:08:02,316 INFO L226 Difference]: Without dead ends: 304 [2024-11-14 05:08:02,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:08:02,317 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 0 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:02,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1010 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:08:02,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-14 05:08:02,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-11-14 05:08:02,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 283 states have (on average 1.2402826855123674) internal successors, (351), 295 states have internal predecessors, (351), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-14 05:08:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 385 transitions. [2024-11-14 05:08:02,333 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 385 transitions. Word has length 132 [2024-11-14 05:08:02,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:02,334 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 385 transitions. [2024-11-14 05:08:02,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:08:02,334 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 385 transitions. [2024-11-14 05:08:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 05:08:02,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:08:02,337 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:08:02,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:08:02,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:08:02,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:08:02,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:08:02,538 INFO L85 PathProgramCache]: Analyzing trace with hash -2075254226, now seen corresponding path program 1 times [2024-11-14 05:08:02,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:08:02,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077870277] [2024-11-14 05:08:02,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:02,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:08:02,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:08:02,541 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:08:02,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 05:08:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:03,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:08:03,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:08:03,549 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:08:03,735 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:08:03,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077870277] [2024-11-14 05:08:03,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077870277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:03,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [21144084] [2024-11-14 05:08:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:03,736 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:08:03,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:08:03,744 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:08:03,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-14 05:08:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:04,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:08:04,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:05,056 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 05:08:05,056 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:08:05,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [21144084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:08:05,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:08:05,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-14 05:08:05,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515799328] [2024-11-14 05:08:05,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:08:05,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:08:05,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:08:05,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:08:05,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:08:05,060 INFO L87 Difference]: Start difference. First operand 304 states and 385 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:08:05,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:05,251 INFO L93 Difference]: Finished difference Result 324 states and 405 transitions. [2024-11-14 05:08:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:08:05,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 134 [2024-11-14 05:08:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:05,256 INFO L225 Difference]: With dead ends: 324 [2024-11-14 05:08:05,257 INFO L226 Difference]: Without dead ends: 324 [2024-11-14 05:08:05,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:08:05,258 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 6 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:05,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 631 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:08:05,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-14 05:08:05,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-11-14 05:08:05,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 303 states have (on average 1.2244224422442245) internal successors, (371), 315 states have internal predecessors, (371), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-14 05:08:05,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 405 transitions. [2024-11-14 05:08:05,286 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 405 transitions. Word has length 134 [2024-11-14 05:08:05,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:05,287 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 405 transitions. [2024-11-14 05:08:05,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:08:05,287 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 405 transitions. [2024-11-14 05:08:05,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 05:08:05,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:08:05,293 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:08:05,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-14 05:08:05,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-14 05:08:05,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -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_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:08:05,695 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:08:05,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:08:05,695 INFO L85 PathProgramCache]: Analyzing trace with hash 280551024, now seen corresponding path program 1 times [2024-11-14 05:08:05,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:08:05,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667374503] [2024-11-14 05:08:05,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:05,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:08:05,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:08:05,700 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:08:05,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-14 05:08:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:06,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:08:06,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:08:06,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:07,025 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:08:07,025 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:08:07,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667374503] [2024-11-14 05:08:07,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667374503] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:07,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1809181054] [2024-11-14 05:08:07,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:07,026 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:08:07,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:08:07,028 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:08:07,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-14 05:08:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:08,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:08:08,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 05:08:09,480 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:08:09,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1809181054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:08:09,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:08:09,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-14 05:08:09,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066510029] [2024-11-14 05:08:09,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:08:09,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:08:09,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:08:09,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:08:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:08:09,484 INFO L87 Difference]: Start difference. First operand 324 states and 405 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:08:10,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:10,270 INFO L93 Difference]: Finished difference Result 427 states and 534 transitions. [2024-11-14 05:08:10,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:08:10,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 134 [2024-11-14 05:08:10,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:10,280 INFO L225 Difference]: With dead ends: 427 [2024-11-14 05:08:10,280 INFO L226 Difference]: Without dead ends: 427 [2024-11-14 05:08:10,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:08:10,281 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 46 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:10,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 676 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:08:10,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-14 05:08:10,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2024-11-14 05:08:10,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 403 states have (on average 1.2233250620347396) internal successors, (493), 415 states have internal predecessors, (493), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-14 05:08:10,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 534 transitions. [2024-11-14 05:08:10,301 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 534 transitions. Word has length 134 [2024-11-14 05:08:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:10,301 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 534 transitions. [2024-11-14 05:08:10,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:08:10,302 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 534 transitions. [2024-11-14 05:08:10,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 05:08:10,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:08:10,305 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:08:10,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-14 05:08:10,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-14 05:08:10,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:08:10,706 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:08:10,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:08:10,706 INFO L85 PathProgramCache]: Analyzing trace with hash 447145429, now seen corresponding path program 1 times [2024-11-14 05:08:10,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:08:10,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560494088] [2024-11-14 05:08:10,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:10,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:08:10,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:08:10,712 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:08:10,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-14 05:08:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:11,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:08:11,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:11,899 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 05:08:11,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:12,062 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 05:08:12,062 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:08:12,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560494088] [2024-11-14 05:08:12,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560494088] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:12,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1952624960] [2024-11-14 05:08:12,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:12,063 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:08:12,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:08:12,068 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:08:12,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-14 05:08:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:13,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:08:13,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:13,612 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 05:08:13,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:08:13,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1952624960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:08:13,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:08:13,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-14 05:08:13,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407774360] [2024-11-14 05:08:13,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:08:13,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:08:13,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:08:13,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:08:13,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:08:13,615 INFO L87 Difference]: Start difference. First operand 427 states and 534 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:08:13,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:13,814 INFO L93 Difference]: Finished difference Result 393 states and 478 transitions. [2024-11-14 05:08:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:08:13,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 151 [2024-11-14 05:08:13,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:13,817 INFO L225 Difference]: With dead ends: 393 [2024-11-14 05:08:13,817 INFO L226 Difference]: Without dead ends: 393 [2024-11-14 05:08:13,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:08:13,819 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 32 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:13,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 916 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:08:13,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-14 05:08:13,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-14 05:08:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 369 states have (on average 1.184281842818428) internal successors, (437), 381 states have internal predecessors, (437), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-14 05:08:13,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 478 transitions. [2024-11-14 05:08:13,868 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 478 transitions. Word has length 151 [2024-11-14 05:08:13,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:13,870 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 478 transitions. [2024-11-14 05:08:13,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:08:13,870 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 478 transitions. [2024-11-14 05:08:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 05:08:13,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:08:13,874 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:08:13,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:08:14,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-14 05:08:14,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -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_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:08:14,276 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:08:14,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:08:14,277 INFO L85 PathProgramCache]: Analyzing trace with hash 12937827, now seen corresponding path program 1 times [2024-11-14 05:08:14,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:08:14,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932097275] [2024-11-14 05:08:14,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:14,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:08:14,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:08:14,282 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:08:14,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-14 05:08:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:15,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:08:15,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:15,560 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 05:08:15,560 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:15,799 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 05:08:15,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:08:15,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932097275] [2024-11-14 05:08:15,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932097275] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:15,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1649711692] [2024-11-14 05:08:15,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:15,800 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:08:15,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:08:15,804 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:08:15,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-14 05:08:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:17,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:08:17,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:17,859 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 05:08:17,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:17,970 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 05:08:17,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1649711692] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:17,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073688804] [2024-11-14 05:08:17,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:17,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:08:17,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:08:17,977 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:08:17,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 05:08:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:19,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:08:19,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:19,757 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-14 05:08:19,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-14 05:08:20,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073688804] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:20,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:08:20,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 4, 4] total 12 [2024-11-14 05:08:20,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18581813] [2024-11-14 05:08:20,489 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:08:20,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:08:20,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:08:20,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:08:20,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:08:20,493 INFO L87 Difference]: Start difference. First operand 393 states and 478 transitions. Second operand has 12 states, 12 states have (on average 31.5) internal successors, (378), 12 states have internal predecessors, (378), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 05:08:22,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:22,873 INFO L93 Difference]: Finished difference Result 800 states and 973 transitions. [2024-11-14 05:08:22,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:08:22,875 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 31.5) internal successors, (378), 12 states have internal predecessors, (378), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 151 [2024-11-14 05:08:22,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:22,880 INFO L225 Difference]: With dead ends: 800 [2024-11-14 05:08:22,880 INFO L226 Difference]: Without dead ends: 800 [2024-11-14 05:08:22,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 891 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-14 05:08:22,881 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 725 mSDsluCounter, 2757 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 3320 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:22,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 3320 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 05:08:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-14 05:08:22,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 798. [2024-11-14 05:08:22,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 758 states have (on average 1.1715039577836412) internal successors, (888), 770 states have internal predecessors, (888), 34 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (42), 25 states have call predecessors, (42), 34 states have call successors, (42) [2024-11-14 05:08:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 964 transitions. [2024-11-14 05:08:22,926 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 964 transitions. Word has length 151 [2024-11-14 05:08:22,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:22,927 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 964 transitions. [2024-11-14 05:08:22,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 31.5) internal successors, (378), 12 states have internal predecessors, (378), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 05:08:22,927 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 964 transitions. [2024-11-14 05:08:22,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-14 05:08:22,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:08:22,947 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:08:22,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:08:23,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 05:08:23,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-14 05:08:23,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:08:23,549 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:08:23,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:08:23,550 INFO L85 PathProgramCache]: Analyzing trace with hash 638422335, now seen corresponding path program 1 times [2024-11-14 05:08:23,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:08:23,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909090672] [2024-11-14 05:08:23,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:23,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:08:23,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:08:23,555 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:08:23,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-14 05:08:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:26,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 2337 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:08:26,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 176 proven. 10 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-11-14 05:08:26,660 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 112 proven. 71 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2024-11-14 05:08:27,099 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:08:27,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909090672] [2024-11-14 05:08:27,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909090672] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:27,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1899077633] [2024-11-14 05:08:27,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:27,100 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:08:27,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:08:27,105 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:08:27,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-14 05:08:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:32,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 2337 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:08:32,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 176 proven. 10 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-11-14 05:08:32,225 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:32,372 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 112 proven. 71 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2024-11-14 05:08:32,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1899077633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:32,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593464870] [2024-11-14 05:08:32,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:32,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:08:32,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:08:32,376 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:08:32,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 05:08:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:35,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 2337 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:08:35,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:35,253 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 205 proven. 3 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-14 05:08:35,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:35,683 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 129 proven. 31 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2024-11-14 05:08:35,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593464870] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:35,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:08:35,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 6, 6] total 20 [2024-11-14 05:08:35,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683711232] [2024-11-14 05:08:35,684 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:08:35,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 05:08:35,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:08:35,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 05:08:35,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-14 05:08:35,691 INFO L87 Difference]: Start difference. First operand 798 states and 964 transitions. Second operand has 20 states, 20 states have (on average 10.0) internal successors, (200), 20 states have internal predecessors, (200), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 05:08:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:37,295 INFO L93 Difference]: Finished difference Result 820 states and 1009 transitions. [2024-11-14 05:08:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 05:08:37,296 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 10.0) internal successors, (200), 20 states have internal predecessors, (200), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 477 [2024-11-14 05:08:37,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:37,300 INFO L225 Difference]: With dead ends: 820 [2024-11-14 05:08:37,301 INFO L226 Difference]: Without dead ends: 814 [2024-11-14 05:08:37,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2875 GetRequests, 2838 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=403, Invalid=1079, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 05:08:37,302 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 24 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:37,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2880 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:08:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-14 05:08:37,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 810. [2024-11-14 05:08:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 770 states have (on average 1.174025974025974) internal successors, (904), 782 states have internal predecessors, (904), 34 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (42), 25 states have call predecessors, (42), 34 states have call successors, (42) [2024-11-14 05:08:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 980 transitions. [2024-11-14 05:08:37,381 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 980 transitions. Word has length 477 [2024-11-14 05:08:37,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:37,381 INFO L471 AbstractCegarLoop]: Abstraction has 810 states and 980 transitions. [2024-11-14 05:08:37,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 10.0) internal successors, (200), 20 states have internal predecessors, (200), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 05:08:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 980 transitions. [2024-11-14 05:08:37,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-14 05:08:37,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:08:37,398 INFO L215 NwaCegarLoop]: trace histogram [36, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:08:37,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-14 05:08:37,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 05:08:37,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-14 05:08:37,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -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_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:08:38,000 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:08:38,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:08:38,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1905972545, now seen corresponding path program 2 times [2024-11-14 05:08:38,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:08:38,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908216008] [2024-11-14 05:08:38,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:08:38,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:08:38,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:08:38,005 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:08:38,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-14 05:08:41,258 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:08:41,258 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:08:41,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:08:41,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:41,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 440 proven. 55 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2024-11-14 05:08:41,778 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:42,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 112 proven. 380 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2024-11-14 05:08:42,905 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:08:42,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908216008] [2024-11-14 05:08:42,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908216008] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:42,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [237677081] [2024-11-14 05:08:42,905 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:08:42,906 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:08:42,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:08:42,908 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:08:42,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-14 05:08:48,808 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:08:48,808 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:08:48,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:08:49,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 440 proven. 55 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2024-11-14 05:08:49,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 112 proven. 380 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2024-11-14 05:08:49,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [237677081] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:49,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963616736] [2024-11-14 05:08:49,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:08:49,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:08:49,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:08:49,414 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:08:49,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 05:08:52,441 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:08:52,441 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:08:52,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:08:52,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:54,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 628 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2024-11-14 05:08:54,816 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:57,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 628 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2024-11-14 05:08:57,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963616736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:57,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:08:57,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 7, 7] total 36 [2024-11-14 05:08:57,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944019444] [2024-11-14 05:08:57,075 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:08:57,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-14 05:08:57,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:08:57,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-14 05:08:57,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1022, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 05:08:57,082 INFO L87 Difference]: Start difference. First operand 810 states and 980 transitions. Second operand has 36 states, 36 states have (on average 29.833333333333332) internal successors, (1074), 36 states have internal predecessors, (1074), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 05:09:11,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:09:11,986 INFO L93 Difference]: Finished difference Result 1875 states and 2263 transitions. [2024-11-14 05:09:11,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-14 05:09:11,988 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 29.833333333333332) internal successors, (1074), 36 states have internal predecessors, (1074), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 501 [2024-11-14 05:09:11,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:09:11,999 INFO L225 Difference]: With dead ends: 1875 [2024-11-14 05:09:11,999 INFO L226 Difference]: Without dead ends: 1871 [2024-11-14 05:09:12,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3029 GetRequests, 2970 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 05:09:12,002 INFO L432 NwaCegarLoop]: 1220 mSDtfsCounter, 2138 mSDsluCounter, 19092 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 20312 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:09:12,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2182 Valid, 20312 Invalid, 1884 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [345 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2024-11-14 05:09:12,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2024-11-14 05:09:12,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1869. [2024-11-14 05:09:12,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1793 states have (on average 1.1533742331288344) internal successors, (2068), 1805 states have internal predecessors, (2068), 70 states have call successors, (70), 3 states have call predecessors, (70), 4 states have return successors, (90), 61 states have call predecessors, (90), 70 states have call successors, (90) [2024-11-14 05:09:12,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2228 transitions. [2024-11-14 05:09:12,078 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2228 transitions. Word has length 501 [2024-11-14 05:09:12,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:09:12,079 INFO L471 AbstractCegarLoop]: Abstraction has 1869 states and 2228 transitions. [2024-11-14 05:09:12,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 29.833333333333332) internal successors, (1074), 36 states have internal predecessors, (1074), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 05:09:12,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2228 transitions. [2024-11-14 05:09:12,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1168 [2024-11-14 05:09:12,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:09:12,105 INFO L215 NwaCegarLoop]: trace histogram [66, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:09:12,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-14 05:09:12,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-14 05:09:12,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-14 05:09:12,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:09:12,707 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:09:12,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:09:12,708 INFO L85 PathProgramCache]: Analyzing trace with hash 652119615, now seen corresponding path program 3 times [2024-11-14 05:09:12,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:09:12,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032192478] [2024-11-14 05:09:12,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:09:12,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:09:12,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:09:12,715 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:09:12,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80e2814-ff84-4304-8e6b-230d488513d2/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process