./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2 --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 98addbea2d7583a98dfe535f8a62b1da98b67168a60a4eb76b7c658a539d3a89 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:39:48,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:39:49,061 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-02 12:39:49,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:39:49,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:39:49,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:39:49,100 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:39:49,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:39:49,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:39:49,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:39:49,103 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:39:49,103 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:39:49,104 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:39:49,104 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:39:49,104 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:39:49,105 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:39:49,105 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:39:49,106 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:39:49,106 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:39:49,107 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:39:49,107 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:39:49,109 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:39:49,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:39:49,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:39:49,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:39:49,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:39:49,111 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:39:49,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:39:49,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:39:49,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:39:49,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:39:49,119 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:39:49,119 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:39:49,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:39:49,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:39:49,120 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:39:49,121 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:39:49,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:39:49,121 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:39:49,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:39:49,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:39:49,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:39:49,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:39:49,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:39:49,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:39:49,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:39:49,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:39:49,129 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:39:49,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:39:49,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:39:49,130 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:39:49,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:39:49,130 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98addbea2d7583a98dfe535f8a62b1da98b67168a60a4eb76b7c658a539d3a89 [2024-11-02 12:39:49,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:39:49,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:39:49,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:39:49,467 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:39:49,468 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:39:49,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i Unable to find full path for "g++" [2024-11-02 12:39:51,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:39:52,115 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:39:52,116 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i [2024-11-02 12:39:52,148 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/data/5064b2ee8/06a2c88397cf483d904846fd669c0f4f/FLAGcc41ab6f8 [2024-11-02 12:39:52,294 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/data/5064b2ee8/06a2c88397cf483d904846fd669c0f4f [2024-11-02 12:39:52,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:39:52,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:39:52,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:39:52,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:39:52,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:39:52,333 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:39:52" (1/1) ... [2024-11-02 12:39:52,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aee5031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:52, skipping insertion in model container [2024-11-02 12:39:52,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:39:52" (1/1) ... [2024-11-02 12:39:52,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:39:53,099 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,152 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,160 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,169 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,176 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,199 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,202 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,208 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,210 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,211 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,215 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,224 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:53,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:39:53,252 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) [2024-11-02 12:39:53,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43fae91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:53, skipping insertion in model container [2024-11-02 12:39:53,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:39:53,255 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-02 12:39:53,257 INFO L158 Benchmark]: Toolchain (without parser) took 951.86ms. Allocated memory is still 151.0MB. Free memory was 110.4MB in the beginning and 89.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-02 12:39:53,257 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:39:53,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 944.25ms. Allocated memory is still 151.0MB. Free memory was 110.4MB in the beginning and 89.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-02 12:39:53,260 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 944.25ms. Allocated memory is still 151.0MB. Free memory was 110.4MB in the beginning and 89.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 764]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2 --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 98addbea2d7583a98dfe535f8a62b1da98b67168a60a4eb76b7c658a539d3a89 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:39:55,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:39:56,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-02 12:39:56,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:39:56,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:39:56,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:39:56,086 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:39:56,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:39:56,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:39:56,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:39:56,090 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:39:56,091 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:39:56,091 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:39:56,092 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:39:56,092 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:39:56,092 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:39:56,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:39:56,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:39:56,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:39:56,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:39:56,099 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:39:56,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:39:56,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:39:56,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:39:56,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:39:56,101 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:39:56,102 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:39:56,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:39:56,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:39:56,103 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:39:56,104 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:39:56,105 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:39:56,105 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:39:56,105 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:39:56,105 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:39:56,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:39:56,106 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:39:56,106 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:39:56,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:39:56,107 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:39:56,107 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:39:56,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:39:56,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:39:56,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:39:56,110 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:39:56,110 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:39:56,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:39:56,110 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:39:56,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:39:56,111 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98addbea2d7583a98dfe535f8a62b1da98b67168a60a4eb76b7c658a539d3a89 [2024-11-02 12:39:56,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:39:56,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:39:56,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:39:56,636 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:39:56,638 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:39:56,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i Unable to find full path for "g++" [2024-11-02 12:39:58,925 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:39:59,294 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:39:59,295 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i [2024-11-02 12:39:59,317 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/data/5c46c3fad/0d644f1a75a443d1b7d6dc024ad82e6e/FLAGa258265b5 [2024-11-02 12:39:59,334 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/data/5c46c3fad/0d644f1a75a443d1b7d6dc024ad82e6e [2024-11-02 12:39:59,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:39:59,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:39:59,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:39:59,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:39:59,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:39:59,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:39:59" (1/1) ... [2024-11-02 12:39:59,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a07838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:59, skipping insertion in model container [2024-11-02 12:39:59,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:39:59" (1/1) ... [2024-11-02 12:39:59,424 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:39:59,937 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:59,988 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:39:59,997 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,007 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,020 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,037 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,039 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,042 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,044 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,049 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,052 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,062 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:00,097 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-02 12:40:00,116 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:40:00,160 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,190 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,192 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,201 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,213 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,234 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,235 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,240 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,242 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,247 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,248 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,251 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:40:00,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:00,264 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:40:00,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:00,439 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:40:00,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00 WrapperNode [2024-11-02 12:40:00,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:00,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:00,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:40:00,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:40:00,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,550 INFO L138 Inliner]: procedures = 179, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 792 [2024-11-02 12:40:00,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:00,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:40:00,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:40:00,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:40:00,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:40:00,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:40:00,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:40:00,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:40:00,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:00,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:00,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:40:00,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:40:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-02 12:40:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-02 12:40:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:40:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:40:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-02 12:40:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-02 12:40:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:40:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:40:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:40:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:40:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:40:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-02 12:40:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:40:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:40:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:40:01,004 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:40:01,005 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:40:07,073 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-02 12:40:07,073 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:40:07,089 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:40:07,090 INFO L316 CfgBuilder]: Removed 40 assume(true) statements. [2024-11-02 12:40:07,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:07 BoogieIcfgContainer [2024-11-02 12:40:07,090 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:40:07,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:40:07,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:40:07,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:40:07,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:39:59" (1/3) ... [2024-11-02 12:40:07,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1caf0d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:07, skipping insertion in model container [2024-11-02 12:40:07,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00" (2/3) ... [2024-11-02 12:40:07,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1caf0d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:07, skipping insertion in model container [2024-11-02 12:40:07,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:07" (3/3) ... [2024-11-02 12:40:07,099 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-2.i [2024-11-02 12:40:07,115 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:40:07,115 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:40:07,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:40:07,170 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;@67904eff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:40:07,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-02 12:40:07,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 146 states have (on average 1.6506849315068493) internal successors, (241), 158 states have internal predecessors, (241), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-02 12:40:07,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-02 12:40:07,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:07,184 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:07,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-02 12:40:07,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:07,190 INFO L85 PathProgramCache]: Analyzing trace with hash -664136903, now seen corresponding path program 1 times [2024-11-02 12:40:07,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:40:07,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14715388] [2024-11-02 12:40:07,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:07,203 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 [2024-11-02 12:40:07,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:40:07,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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) [2024-11-02 12:40:07,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:40:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:07,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 12:40:07,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:07,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:07,400 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:40:07,400 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:40:07,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14715388] [2024-11-02 12:40:07,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14715388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:07,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:07,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:40:07,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10650610] [2024-11-02 12:40:07,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:07,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:40:07,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:40:07,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:40:07,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:40:07,456 INFO L87 Difference]: Start difference. First operand has 164 states, 146 states have (on average 1.6506849315068493) internal successors, (241), 158 states have internal predecessors, (241), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) 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) [2024-11-02 12:40:07,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:07,756 INFO L93 Difference]: Finished difference Result 252 states and 335 transitions. [2024-11-02 12:40:07,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:40:07,760 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 [2024-11-02 12:40:07,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:07,771 INFO L225 Difference]: With dead ends: 252 [2024-11-02 12:40:07,772 INFO L226 Difference]: Without dead ends: 250 [2024-11-02 12:40:07,774 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 [2024-11-02 12:40:07,778 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 108 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:07,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 431 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:40:07,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-02 12:40:07,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 162. [2024-11-02 12:40:07,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 145 states have (on average 1.3310344827586207) internal successors, (193), 156 states have internal predecessors, (193), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-02 12:40:07,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 219 transitions. [2024-11-02 12:40:07,843 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 219 transitions. Word has length 11 [2024-11-02 12:40:07,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:07,843 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 219 transitions. [2024-11-02 12:40:07,844 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) [2024-11-02 12:40:07,844 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 219 transitions. [2024-11-02 12:40:07,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-02 12:40:07,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:07,847 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] [2024-11-02 12:40:07,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:40:08,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:40:08,049 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-02 12:40:08,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:08,050 INFO L85 PathProgramCache]: Analyzing trace with hash 586545796, now seen corresponding path program 1 times [2024-11-02 12:40:08,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:40:08,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608010969] [2024-11-02 12:40:08,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:08,056 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 [2024-11-02 12:40:08,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:40:08,058 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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) [2024-11-02 12:40:08,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:40:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:08,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:40:08,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:08,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:08,603 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:40:08,604 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:40:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608010969] [2024-11-02 12:40:08,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608010969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:08,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:08,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:40:08,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723272079] [2024-11-02 12:40:08,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:08,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:40:08,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:40:08,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:40:08,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:40:08,607 INFO L87 Difference]: Start difference. First operand 162 states and 219 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-02 12:40:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:08,940 INFO L93 Difference]: Finished difference Result 165 states and 214 transitions. [2024-11-02 12:40:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:40:08,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 66 [2024-11-02 12:40:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:08,942 INFO L225 Difference]: With dead ends: 165 [2024-11-02 12:40:08,942 INFO L226 Difference]: Without dead ends: 165 [2024-11-02 12:40:08,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:40:08,943 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 30 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:08,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 545 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:40:08,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-02 12:40:08,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-02 12:40:08,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 148 states have (on average 1.2702702702702702) internal successors, (188), 159 states have internal predecessors, (188), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-02 12:40:08,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 214 transitions. [2024-11-02 12:40:08,969 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 214 transitions. Word has length 66 [2024-11-02 12:40:08,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:08,969 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 214 transitions. [2024-11-02 12:40:08,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-02 12:40:08,970 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 214 transitions. [2024-11-02 12:40:08,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-02 12:40:08,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:08,976 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] [2024-11-02 12:40:08,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:40:09,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:40:09,177 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-02 12:40:09,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:09,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1454761096, now seen corresponding path program 1 times [2024-11-02 12:40:09,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:40:09,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346456070] [2024-11-02 12:40:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:09,179 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 [2024-11-02 12:40:09,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:40:09,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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) [2024-11-02 12:40:09,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:40:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:09,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:40:09,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:10,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:40:10,123 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:40:10,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346456070] [2024-11-02 12:40:10,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346456070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:10,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:10,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:40:10,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769923741] [2024-11-02 12:40:10,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:10,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:40:10,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:40:10,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:40:10,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:40:10,126 INFO L87 Difference]: Start difference. First operand 165 states and 214 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-02 12:40:10,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:10,982 INFO L93 Difference]: Finished difference Result 238 states and 300 transitions. [2024-11-02 12:40:10,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:40:10,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 66 [2024-11-02 12:40:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:10,988 INFO L225 Difference]: With dead ends: 238 [2024-11-02 12:40:10,988 INFO L226 Difference]: Without dead ends: 238 [2024-11-02 12:40:10,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:40:10,989 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 42 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:10,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 384 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-02 12:40:10,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-02 12:40:11,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 207. [2024-11-02 12:40:11,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 190 states have (on average 1.231578947368421) internal successors, (234), 201 states have internal predecessors, (234), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-02 12:40:11,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 260 transitions. [2024-11-02 12:40:11,003 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 260 transitions. Word has length 66 [2024-11-02 12:40:11,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:11,004 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 260 transitions. [2024-11-02 12:40:11,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-02 12:40:11,004 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 260 transitions. [2024-11-02 12:40:11,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-02 12:40:11,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:11,007 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] [2024-11-02 12:40:11,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:40:11,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:40:11,207 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-02 12:40:11,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:11,208 INFO L85 PathProgramCache]: Analyzing trace with hash -921436779, now seen corresponding path program 1 times [2024-11-02 12:40:11,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:40:11,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987542523] [2024-11-02 12:40:11,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:11,210 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 [2024-11-02 12:40:11,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:40:11,213 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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) [2024-11-02 12:40:11,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:40:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:11,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:40:11,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:11,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:40:11,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:40:11,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987542523] [2024-11-02 12:40:11,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987542523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:11,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:11,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:40:11,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324875312] [2024-11-02 12:40:11,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:11,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:40:11,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:40:11,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:40:11,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:40:11,817 INFO L87 Difference]: Start difference. First operand 207 states and 260 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:40:11,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:11,867 INFO L93 Difference]: Finished difference Result 210 states and 264 transitions. [2024-11-02 12:40:11,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:40:11,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 81 [2024-11-02 12:40:11,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:11,870 INFO L225 Difference]: With dead ends: 210 [2024-11-02 12:40:11,870 INFO L226 Difference]: Without dead ends: 210 [2024-11-02 12:40:11,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:40:11,872 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:11,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 608 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:40:11,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-02 12:40:11,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-02 12:40:11,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 192 states have (on average 1.234375) internal successors, (237), 204 states have internal predecessors, (237), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-02 12:40:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 264 transitions. [2024-11-02 12:40:11,884 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 264 transitions. Word has length 81 [2024-11-02 12:40:11,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:11,884 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 264 transitions. [2024-11-02 12:40:11,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:40:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 264 transitions. [2024-11-02 12:40:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-02 12:40:11,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:11,887 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] [2024-11-02 12:40:11,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-02 12:40:12,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:40:12,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-02 12:40:12,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:12,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1569490291, now seen corresponding path program 1 times [2024-11-02 12:40:12,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:40:12,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610301686] [2024-11-02 12:40:12,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:12,091 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 [2024-11-02 12:40:12,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:40:12,094 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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) [2024-11-02 12:40:12,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:40:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:12,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:40:12,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:12,725 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 12:40:12,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:40:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 12:40:12,886 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:40:12,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610301686] [2024-11-02 12:40:12,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610301686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:40:12,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1995002923] [2024-11-02 12:40:12,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:12,887 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-02 12:40:12,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/cvc4 [2024-11-02 12:40:12,890 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-02 12:40:12,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-02 12:40:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:13,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:40:13,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:13,848 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 12:40:13,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:40:13,929 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 12:40:13,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1995002923] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:40:13,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798911797] [2024-11-02 12:40:13,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:13,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:40:13,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:13,936 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:40:13,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 12:40:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:14,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:40:14,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:14,738 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-02 12:40:14,738 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:40:15,108 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-02 12:40:15,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798911797] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:40:15,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-02 12:40:15,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 4, 4] total 12 [2024-11-02 12:40:15,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494364097] [2024-11-02 12:40:15,109 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-02 12:40:15,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 12:40:15,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:40:15,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 12:40:15,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-02 12:40:15,111 INFO L87 Difference]: Start difference. First operand 210 states and 264 transitions. Second operand has 12 states, 12 states have (on average 17.5) internal successors, (210), 12 states have internal predecessors, (210), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-02 12:40:16,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:16,463 INFO L93 Difference]: Finished difference Result 453 states and 567 transitions. [2024-11-02 12:40:16,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-02 12:40:16,465 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.5) internal successors, (210), 12 states have internal predecessors, (210), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 83 [2024-11-02 12:40:16,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:16,468 INFO L225 Difference]: With dead ends: 453 [2024-11-02 12:40:16,468 INFO L226 Difference]: Without dead ends: 453 [2024-11-02 12:40:16,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-02 12:40:16,471 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 378 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:16,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 2097 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-02 12:40:16,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-02 12:40:16,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 451. [2024-11-02 12:40:16,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 423 states have (on average 1.215130023640662) internal successors, (514), 435 states have internal predecessors, (514), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (26), 13 states have call predecessors, (26), 22 states have call successors, (26) [2024-11-02 12:40:16,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 562 transitions. [2024-11-02 12:40:16,511 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 562 transitions. Word has length 83 [2024-11-02 12:40:16,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:16,512 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 562 transitions. [2024-11-02 12:40:16,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.5) internal successors, (210), 12 states have internal predecessors, (210), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-02 12:40:16,515 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 562 transitions. [2024-11-02 12:40:16,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-02 12:40:16,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:16,532 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-02 12:40:16,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:40:16,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-02 12:40:16,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-02 12:40:17,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt [2024-11-02 12:40:17,134 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-02 12:40:17,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1481405380, now seen corresponding path program 1 times [2024-11-02 12:40:17,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:40:17,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059869805] [2024-11-02 12:40:17,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:17,137 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 [2024-11-02 12:40:17,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:40:17,140 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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) [2024-11-02 12:40:17,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:40:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:18,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 12:40:18,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:18,450 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 130 proven. 10 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-02 12:40:18,450 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:40:18,902 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 112 proven. 27 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-02 12:40:18,902 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:40:18,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059869805] [2024-11-02 12:40:18,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059869805] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:40:18,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1442588973] [2024-11-02 12:40:18,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:18,903 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-02 12:40:18,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/cvc4 [2024-11-02 12:40:18,906 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-02 12:40:18,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-02 12:40:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:20,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 12:40:20,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:20,895 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 130 proven. 10 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-02 12:40:20,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:40:21,029 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 112 proven. 27 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-02 12:40:21,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1442588973] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:40:21,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416940136] [2024-11-02 12:40:21,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:21,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:40:21,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:21,033 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:40:21,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cab1df9-0844-48c1-9737-546503465522/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-02 12:40:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:22,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 12:40:22,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 129 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-02 12:40:22,237 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:40:22,585 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 129 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-02 12:40:22,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416940136] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:40:22,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-02 12:40:22,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 6, 6] total 20 [2024-11-02 12:40:22,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115039051] [2024-11-02 12:40:22,587 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-02 12:40:22,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-02 12:40:22,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:40:22,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-02 12:40:22,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-02 12:40:22,590 INFO L87 Difference]: Start difference. First operand 451 states and 562 transitions. Second operand has 20 states, 20 states have (on average 7.05) internal successors, (141), 20 states have internal predecessors, (141), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)