./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:39:50,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:39:50,436 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 05:39:50,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:39:50,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:39:50,468 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:39:50,468 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:39:50,468 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:39:50,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:39:50,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:39:50,469 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:39:50,469 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:39:50,469 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:39:50,469 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:39:50,470 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:39:50,470 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:39:50,470 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:39:50,470 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:39:50,470 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:39:50,470 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:39:50,470 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:39:50,470 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:39:50,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 05:39:50,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 05:39:50,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:39:50,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:39:50,471 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:39:50,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:39:50,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:39:50,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:39:50,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:39:50,472 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 05:39:50,472 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 05:39:50,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:39:50,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:39:50,472 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:39:50,472 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:39:50,473 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:39:50,473 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:39:50,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:39:50,473 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:39:50,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:39:50,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:39:50,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:39:50,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:39:50,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:39:50,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:39:50,474 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:39:50,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:39:50,474 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:39:50,474 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:39:50,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:39:50,474 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2024-11-14 05:39:50,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:39:50,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:39:50,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:39:50,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:39:50,854 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:39:50,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i Unable to find full path for "g++" [2024-11-14 05:39:52,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:39:53,442 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:39:53,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i [2024-11-14 05:39:53,465 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/data/364cc7bfe/006f4988ec5e4a68a846b21847c3864c/FLAGfd3e3eda4 [2024-11-14 05:39:53,482 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/data/364cc7bfe/006f4988ec5e4a68a846b21847c3864c [2024-11-14 05:39:53,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:39:53,487 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:39:53,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:39:53,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:39:53,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:39:53,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:39:53" (1/1) ... [2024-11-14 05:39:53,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243264cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:53, skipping insertion in model container [2024-11-14 05:39:53,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:39:53" (1/1) ... [2024-11-14 05:39:53,560 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:39:54,050 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,087 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,097 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,107 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,123 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,164 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,167 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,170 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,177 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,192 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,193 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,197 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,199 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,200 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,201 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,207 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,209 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,210 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,211 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,215 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:39:54,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:39:54,258 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-14 05:39:54,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@318f4f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:54, skipping insertion in model container [2024-11-14 05:39:54,262 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:39:54,264 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 05:39:54,266 INFO L158 Benchmark]: Toolchain (without parser) took 778.54ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 95.2MB in the end (delta: 21.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:39:54,270 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:54,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 775.28ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 95.2MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:39:54,272 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 775.28ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 95.2MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 757]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:39:57,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:39:57,225 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-14 05:39:57,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:39:57,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:39:57,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:39:57,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:39:57,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:39:57,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:39:57,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:39:57,311 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:39:57,312 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:39:57,312 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:39:57,313 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:39:57,313 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:39:57,313 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:39:57,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 05:39:57,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 05:39:57,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:39:57,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:39:57,314 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:39:57,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:39:57,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:39:57,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:39:57,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:39:57,315 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 05:39:57,316 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 05:39:57,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:39:57,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:39:57,316 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:39:57,316 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:39:57,316 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:39:57,317 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:39:57,317 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:39:57,317 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:39:57,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:39:57,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:39:57,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:39:57,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:39:57,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:39:57,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:39:57,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:39:57,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:39:57,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:39:57,319 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:39:57,319 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:39:57,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:39:57,319 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:39:57,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2024-11-14 05:39:57,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:39:57,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:39:57,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:39:57,654 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:39:57,656 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:39:57,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i Unable to find full path for "g++" [2024-11-14 05:39:59,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:40:00,083 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:40:00,084 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i [2024-11-14 05:40:00,111 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/data/3d5f50d57/d4da00d9acb64b549fd68923cdfe9583/FLAG2bef9a362 [2024-11-14 05:40:00,132 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/data/3d5f50d57/d4da00d9acb64b549fd68923cdfe9583 [2024-11-14 05:40:00,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:40:00,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:40:00,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:40:00,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:40:00,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:40:00,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:40:00" (1/1) ... [2024-11-14 05:40:00,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f07de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:00, skipping insertion in model container [2024-11-14 05:40:00,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:40:00" (1/1) ... [2024-11-14 05:40:00,213 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:40:00,702 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,757 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,764 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,769 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,777 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,813 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,817 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,823 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,831 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,849 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,850 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,853 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,855 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,856 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,857 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,863 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,865 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,866 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,866 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,871 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:40:00,892 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 05:40:00,904 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:40:00,935 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,952 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,955 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,958 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,963 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,987 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,989 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,992 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:00,997 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,015 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,016 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,018 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,018 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,019 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,020 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,024 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,025 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,026 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,027 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,030 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:40:01,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:40:01,038 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:40:01,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:40:01,226 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:40:01,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01 WrapperNode [2024-11-14 05:40:01,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:40:01,228 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:40:01,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:40:01,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:40:01,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,334 INFO L138 Inliner]: procedures = 179, calls = 425, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1388 [2024-11-14 05:40:01,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:40:01,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:40:01,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:40:01,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:40:01,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,405 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,415 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,425 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:40:01,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:40:01,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:40:01,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:40:01,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (1/1) ... [2024-11-14 05:40:01,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:40:01,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:40:01,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:40:01,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:40:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 05:40:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 05:40:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 05:40:01,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 05:40:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:40:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:40:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:40:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:40:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:40:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 05:40:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:40:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:40:01,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:40:01,848 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:40:01,850 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:40:13,385 INFO L? ?]: Removed 196 outVars from TransFormulas that were not future-live. [2024-11-14 05:40:13,386 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:40:13,412 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:40:13,414 INFO L316 CfgBuilder]: Removed 77 assume(true) statements. [2024-11-14 05:40:13,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:40:13 BoogieIcfgContainer [2024-11-14 05:40:13,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:40:13,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:40:13,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:40:13,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:40:13,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:40:00" (1/3) ... [2024-11-14 05:40:13,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b299b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:40:13, skipping insertion in model container [2024-11-14 05:40:13,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:01" (2/3) ... [2024-11-14 05:40:13,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b299b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:40:13, skipping insertion in model container [2024-11-14 05:40:13,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:40:13" (3/3) ... [2024-11-14 05:40:13,505 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test4-3.i [2024-11-14 05:40:13,522 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:40:13,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_nondet_test4-3.i that has 2 procedures, 249 locations, 1 initial locations, 44 loop locations, and 2 error locations. [2024-11-14 05:40:13,589 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:40:13,609 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;@56622a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:40:13,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:40:13,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 249 states, 239 states have (on average 1.6610878661087867) internal successors, (397), 241 states have internal predecessors, (397), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:40:13,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:40:13,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:13,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:40:13,626 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:40:13,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:13,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1172831, now seen corresponding path program 1 times [2024-11-14 05:40:13,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:13,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982186999] [2024-11-14 05:40:13,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:13,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:13,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:13,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:13,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:40:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:13,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:40:13,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:40:13,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:13,969 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:13,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982186999] [2024-11-14 05:40:13,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982186999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:13,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:13,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:40:13,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749817381] [2024-11-14 05:40:13,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:13,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:40:13,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:14,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:40:14,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:40:14,018 INFO L87 Difference]: Start difference. First operand has 249 states, 239 states have (on average 1.6610878661087867) internal successors, (397), 241 states have internal predecessors, (397), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:40:16,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:18,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:19,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:19,058 INFO L93 Difference]: Finished difference Result 311 states and 406 transitions. [2024-11-14 05:40:19,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:40:19,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 05:40:19,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:19,079 INFO L225 Difference]: With dead ends: 311 [2024-11-14 05:40:19,079 INFO L226 Difference]: Without dead ends: 307 [2024-11-14 05:40:19,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:40:19,084 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 80 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:19,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 655 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2024-11-14 05:40:19,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-14 05:40:19,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 257. [2024-11-14 05:40:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 248 states have (on average 1.3024193548387097) internal successors, (323), 249 states have internal predecessors, (323), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:40:19,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 335 transitions. [2024-11-14 05:40:19,146 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 335 transitions. Word has length 4 [2024-11-14 05:40:19,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:19,147 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 335 transitions. [2024-11-14 05:40:19,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:40:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 335 transitions. [2024-11-14 05:40:19,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:40:19,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:19,149 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:19,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 05:40:19,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:19,352 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:40:19,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:19,352 INFO L85 PathProgramCache]: Analyzing trace with hash -224652152, now seen corresponding path program 1 times [2024-11-14 05:40:19,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:19,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897424758] [2024-11-14 05:40:19,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:19,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:19,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:19,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:19,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 05:40:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:19,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:40:19,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:19,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:40:19,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:19,677 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:19,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897424758] [2024-11-14 05:40:19,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897424758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:19,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:19,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:40:19,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576658241] [2024-11-14 05:40:19,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:19,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:40:19,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:19,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:40:19,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:40:19,681 INFO L87 Difference]: Start difference. First operand 257 states and 335 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:40:22,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:24,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:26,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:29,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:30,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:30,614 INFO L93 Difference]: Finished difference Result 377 states and 490 transitions. [2024-11-14 05:40:30,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:40:30,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 05:40:30,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:30,619 INFO L225 Difference]: With dead ends: 377 [2024-11-14 05:40:30,619 INFO L226 Difference]: Without dead ends: 377 [2024-11-14 05:40:30,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:40:30,620 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 156 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:30,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 877 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2024-11-14 05:40:30,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-14 05:40:30,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2024-11-14 05:40:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 365 states have (on average 1.2931506849315069) internal successors, (472), 366 states have internal predecessors, (472), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 05:40:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 490 transitions. [2024-11-14 05:40:30,661 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 490 transitions. Word has length 11 [2024-11-14 05:40:30,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:30,661 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 490 transitions. [2024-11-14 05:40:30,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:40:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 490 transitions. [2024-11-14 05:40:30,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 05:40:30,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:30,663 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] [2024-11-14 05:40:30,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 05:40:30,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:30,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:40:30,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:30,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1910615959, now seen corresponding path program 1 times [2024-11-14 05:40:30,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:30,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192645054] [2024-11-14 05:40:30,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:30,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:30,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:30,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:30,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 05:40:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:31,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:40:31,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:31,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:40:31,201 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:31,201 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:31,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192645054] [2024-11-14 05:40:31,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192645054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:31,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:31,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:40:31,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612937900] [2024-11-14 05:40:31,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:31,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:40:31,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:31,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:40:31,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:40:31,206 INFO L87 Difference]: Start difference. First operand 377 states and 490 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:40:32,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:32,176 INFO L93 Difference]: Finished difference Result 428 states and 556 transitions. [2024-11-14 05:40:32,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:40:32,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-14 05:40:32,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:32,182 INFO L225 Difference]: With dead ends: 428 [2024-11-14 05:40:32,182 INFO L226 Difference]: Without dead ends: 428 [2024-11-14 05:40:32,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:40:32,183 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 120 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:32,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 604 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 05:40:32,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-14 05:40:32,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 375. [2024-11-14 05:40:32,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 363 states have (on average 1.2892561983471074) internal successors, (468), 364 states have internal predecessors, (468), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 05:40:32,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 486 transitions. [2024-11-14 05:40:32,205 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 486 transitions. Word has length 26 [2024-11-14 05:40:32,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:32,205 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 486 transitions. [2024-11-14 05:40:32,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:40:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 486 transitions. [2024-11-14 05:40:32,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 05:40:32,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:32,206 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] [2024-11-14 05:40:32,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 05:40:32,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:32,407 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:40:32,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:32,408 INFO L85 PathProgramCache]: Analyzing trace with hash 221672217, now seen corresponding path program 1 times [2024-11-14 05:40:32,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:32,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291928442] [2024-11-14 05:40:32,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:32,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:32,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:32,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:32,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 05:40:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:32,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:40:32,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:32,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:40:32,770 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:32,770 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:32,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291928442] [2024-11-14 05:40:32,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291928442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:32,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:32,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:40:32,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284704282] [2024-11-14 05:40:32,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:32,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:40:32,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:32,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:40:32,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:40:32,772 INFO L87 Difference]: Start difference. First operand 375 states and 486 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:40:35,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:37,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:39,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:40,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:43,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:43,982 INFO L93 Difference]: Finished difference Result 428 states and 555 transitions. [2024-11-14 05:40:43,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:40:43,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-14 05:40:43,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:43,988 INFO L225 Difference]: With dead ends: 428 [2024-11-14 05:40:43,988 INFO L226 Difference]: Without dead ends: 422 [2024-11-14 05:40:43,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:40:43,989 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 122 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:43,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 911 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2024-11-14 05:40:43,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-14 05:40:44,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 369. [2024-11-14 05:40:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 357 states have (on average 1.2913165266106443) internal successors, (461), 358 states have internal predecessors, (461), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 05:40:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 479 transitions. [2024-11-14 05:40:44,008 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 479 transitions. Word has length 26 [2024-11-14 05:40:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:44,008 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 479 transitions. [2024-11-14 05:40:44,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:40:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 479 transitions. [2024-11-14 05:40:44,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-14 05:40:44,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:44,014 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:44,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 05:40:44,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:44,217 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:40:44,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:44,219 INFO L85 PathProgramCache]: Analyzing trace with hash 484908591, now seen corresponding path program 1 times [2024-11-14 05:40:44,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:44,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157479570] [2024-11-14 05:40:44,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:44,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:44,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:44,222 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:44,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 05:40:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:45,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:40:45,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 05:40:45,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:45,255 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:45,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157479570] [2024-11-14 05:40:45,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157479570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:45,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:45,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:40:45,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016061873] [2024-11-14 05:40:45,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:45,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:40:45,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:45,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:40:45,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:40:45,258 INFO L87 Difference]: Start difference. First operand 369 states and 479 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 05:40:45,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:45,442 INFO L93 Difference]: Finished difference Result 375 states and 469 transitions. [2024-11-14 05:40:45,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:40:45,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 147 [2024-11-14 05:40:45,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:45,445 INFO L225 Difference]: With dead ends: 375 [2024-11-14 05:40:45,445 INFO L226 Difference]: Without dead ends: 375 [2024-11-14 05:40:45,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:40:45,446 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 30 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:45,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 848 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:40:45,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-14 05:40:45,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2024-11-14 05:40:45,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 363 states have (on average 1.2424242424242424) internal successors, (451), 364 states have internal predecessors, (451), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 05:40:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 469 transitions. [2024-11-14 05:40:45,463 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 469 transitions. Word has length 147 [2024-11-14 05:40:45,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:45,464 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 469 transitions. [2024-11-14 05:40:45,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 05:40:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 469 transitions. [2024-11-14 05:40:45,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-14 05:40:45,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:45,475 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:45,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-14 05:40:45,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:45,676 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:40:45,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:45,677 INFO L85 PathProgramCache]: Analyzing trace with hash -765093597, now seen corresponding path program 1 times [2024-11-14 05:40:45,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:45,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917324478] [2024-11-14 05:40:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:45,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:45,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:45,680 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:45,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 05:40:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:46,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:40:46,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:40:46,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:46,652 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:46,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917324478] [2024-11-14 05:40:46,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917324478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:46,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:46,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:40:46,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529985057] [2024-11-14 05:40:46,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:46,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:40:46,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:46,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:40:46,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:40:46,654 INFO L87 Difference]: Start difference. First operand 375 states and 469 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:40:46,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:46,737 INFO L93 Difference]: Finished difference Result 378 states and 475 transitions. [2024-11-14 05:40:46,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:40:46,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 147 [2024-11-14 05:40:46,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:46,741 INFO L225 Difference]: With dead ends: 378 [2024-11-14 05:40:46,741 INFO L226 Difference]: Without dead ends: 378 [2024-11-14 05:40:46,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:40:46,742 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 0 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:46,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 905 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:40:46,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-14 05:40:46,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2024-11-14 05:40:46,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 365 states have (on average 1.2438356164383562) internal successors, (454), 367 states have internal predecessors, (454), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-14 05:40:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 475 transitions. [2024-11-14 05:40:46,757 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 475 transitions. Word has length 147 [2024-11-14 05:40:46,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:46,757 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 475 transitions. [2024-11-14 05:40:46,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:40:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 475 transitions. [2024-11-14 05:40:46,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 05:40:46,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:46,760 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:46,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-14 05:40:46,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:46,962 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:40:46,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:46,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1292587481, now seen corresponding path program 1 times [2024-11-14 05:40:46,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:46,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76205977] [2024-11-14 05:40:46,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:46,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:46,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:46,966 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:46,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-14 05:40:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:48,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:40:48,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:48,154 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 05:40:48,154 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:40:48,397 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 05:40:48,400 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:48,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76205977] [2024-11-14 05:40:48,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76205977] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:40:48,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1732604056] [2024-11-14 05:40:48,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:48,401 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:40:48,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:40:48,403 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:40:48,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-14 05:40:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:49,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:40:49,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:49,589 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 05:40:49,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:49,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1732604056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:49,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:40:49,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-14 05:40:49,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765286861] [2024-11-14 05:40:49,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:49,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:40:49,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:49,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:40:49,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:40:49,595 INFO L87 Difference]: Start difference. First operand 378 states and 475 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:40:49,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:49,750 INFO L93 Difference]: Finished difference Result 418 states and 515 transitions. [2024-11-14 05:40:49,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:40:49,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 151 [2024-11-14 05:40:49,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:49,754 INFO L225 Difference]: With dead ends: 418 [2024-11-14 05:40:49,754 INFO L226 Difference]: Without dead ends: 418 [2024-11-14 05:40:49,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:40:49,755 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 9 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:49,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 561 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:40:49,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-14 05:40:49,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2024-11-14 05:40:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 405 states have (on average 1.219753086419753) internal successors, (494), 407 states have internal predecessors, (494), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-14 05:40:49,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 515 transitions. [2024-11-14 05:40:49,770 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 515 transitions. Word has length 151 [2024-11-14 05:40:49,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:49,771 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 515 transitions. [2024-11-14 05:40:49,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:40:49,771 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 515 transitions. [2024-11-14 05:40:49,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 05:40:49,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:49,774 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:49,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-14 05:40:49,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-14 05:40:50,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:40:50,175 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:40:50,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:50,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1053247275, now seen corresponding path program 1 times [2024-11-14 05:40:50,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:50,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662341161] [2024-11-14 05:40:50,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:50,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:50,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:50,181 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:50,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-14 05:40:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:51,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:40:51,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 05:40:51,306 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:40:51,499 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 05:40:51,499 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:51,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662341161] [2024-11-14 05:40:51,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662341161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:40:51,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1275325707] [2024-11-14 05:40:51,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:51,500 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:40:51,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:40:51,502 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:40:51,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-14 05:40:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:52,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:40:52,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 05:40:52,917 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:52,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1275325707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:52,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:40:52,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-14 05:40:52,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663856046] [2024-11-14 05:40:52,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:52,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:40:52,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:52,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:40:52,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:40:52,920 INFO L87 Difference]: Start difference. First operand 418 states and 515 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:40:53,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:53,116 INFO L93 Difference]: Finished difference Result 384 states and 459 transitions. [2024-11-14 05:40:53,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:40:53,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 151 [2024-11-14 05:40:53,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:53,119 INFO L225 Difference]: With dead ends: 384 [2024-11-14 05:40:53,119 INFO L226 Difference]: Without dead ends: 384 [2024-11-14 05:40:53,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:40:53,121 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 32 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:53,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 811 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:40:53,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-14 05:40:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-14 05:40:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 371 states have (on average 1.1805929919137466) internal successors, (438), 373 states have internal predecessors, (438), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-14 05:40:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 459 transitions. [2024-11-14 05:40:53,137 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 459 transitions. Word has length 151 [2024-11-14 05:40:53,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:53,137 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 459 transitions. [2024-11-14 05:40:53,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:40:53,138 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 459 transitions. [2024-11-14 05:40:53,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 05:40:53,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:53,140 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:53,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-14 05:40:53,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-14 05:40:53,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:40:53,544 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:40:53,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:53,545 INFO L85 PathProgramCache]: Analyzing trace with hash -207685411, now seen corresponding path program 1 times [2024-11-14 05:40:53,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:53,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362903186] [2024-11-14 05:40:53,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:53,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:53,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:53,550 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:53,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-14 05:40:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:54,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:40:54,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:54,455 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 05:40:54,455 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:40:54,627 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 05:40:54,627 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:54,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362903186] [2024-11-14 05:40:54,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362903186] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:40:54,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [328438522] [2024-11-14 05:40:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:54,627 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:40:54,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:40:54,629 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:40:54,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-14 05:40:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:56,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:40:56,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:56,356 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 05:40:56,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:40:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 05:40:56,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [328438522] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:40:56,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386458440] [2024-11-14 05:40:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:56,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:40:56,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:40:56,453 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:40:56,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 05:40:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:57,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:40:57,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:57,450 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 05:40:57,450 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:40:57,661 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 05:40:57,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386458440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:40:57,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:40:57,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-14 05:40:57,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758826962] [2024-11-14 05:40:57,662 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:40:57,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:40:57,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:57,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:40:57,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:40:57,664 INFO L87 Difference]: Start difference. First operand 384 states and 459 transitions. Second operand has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 05:40:58,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:58,233 INFO L93 Difference]: Finished difference Result 399 states and 485 transitions. [2024-11-14 05:40:58,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:40:58,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 151 [2024-11-14 05:40:58,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:58,237 INFO L225 Difference]: With dead ends: 399 [2024-11-14 05:40:58,237 INFO L226 Difference]: Without dead ends: 399 [2024-11-14 05:40:58,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 909 GetRequests, 891 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-14 05:40:58,239 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 14 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:58,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1429 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:40:58,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-14 05:40:58,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 395. [2024-11-14 05:40:58,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 381 states have (on average 1.1968503937007875) internal successors, (456), 383 states have internal predecessors, (456), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-14 05:40:58,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 477 transitions. [2024-11-14 05:40:58,256 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 477 transitions. Word has length 151 [2024-11-14 05:40:58,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:58,257 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 477 transitions. [2024-11-14 05:40:58,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 05:40:58,258 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 477 transitions. [2024-11-14 05:40:58,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-14 05:40:58,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:58,260 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:58,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 05:40:58,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-14 05:40:58,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-14 05:40:58,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:58,861 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:40:58,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:58,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1415516761, now seen corresponding path program 2 times [2024-11-14 05:40:58,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:58,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768843044] [2024-11-14 05:40:58,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:40:58,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:58,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:58,865 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:58,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-14 05:40:59,926 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:40:59,927 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:40:59,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:40:59,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:41:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 85 proven. 10 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 05:41:00,120 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:41:00,464 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-14 05:41:00,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:41:00,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768843044] [2024-11-14 05:41:00,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768843044] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:41:00,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [721266896] [2024-11-14 05:41:00,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:41:00,464 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:41:00,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:41:00,467 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:41:00,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-14 05:41:02,272 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:41:02,272 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:41:02,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:41:02,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:41:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 85 proven. 10 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 05:41:02,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:41:02,520 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-14 05:41:02,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [721266896] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:41:02,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270408444] [2024-11-14 05:41:02,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:41:02,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:41:02,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:41:02,523 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:41:02,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 05:41:03,457 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:41:03,457 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:41:03,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:41:03,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:41:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 140 proven. 10 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-14 05:41:03,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:41:04,115 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 28 proven. 64 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-14 05:41:04,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270408444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:41:04,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:41:04,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2024-11-14 05:41:04,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906853557] [2024-11-14 05:41:04,116 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:41:04,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 05:41:04,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:41:04,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 05:41:04,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-14 05:41:04,119 INFO L87 Difference]: Start difference. First operand 395 states and 477 transitions. Second operand has 22 states, 22 states have (on average 7.318181818181818) internal successors, (161), 22 states have internal predecessors, (161), 2 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 05:41:05,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:41:05,669 INFO L93 Difference]: Finished difference Result 415 states and 508 transitions. [2024-11-14 05:41:05,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 05:41:05,670 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.318181818181818) internal successors, (161), 22 states have internal predecessors, (161), 2 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 163 [2024-11-14 05:41:05,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:41:05,673 INFO L225 Difference]: With dead ends: 415 [2024-11-14 05:41:05,673 INFO L226 Difference]: Without dead ends: 409 [2024-11-14 05:41:05,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 993 GetRequests, 952 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=505, Invalid=1301, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 05:41:05,675 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 26 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:41:05,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3417 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:41:05,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-14 05:41:05,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 407. [2024-11-14 05:41:05,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 393 states have (on average 1.2035623409669212) internal successors, (473), 395 states have internal predecessors, (473), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-14 05:41:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 494 transitions. [2024-11-14 05:41:05,689 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 494 transitions. Word has length 163 [2024-11-14 05:41:05,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:41:05,690 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 494 transitions. [2024-11-14 05:41:05,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.318181818181818) internal successors, (161), 22 states have internal predecessors, (161), 2 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 05:41:05,690 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 494 transitions. [2024-11-14 05:41:05,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-14 05:41:05,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:05,693 INFO L215 NwaCegarLoop]: trace histogram [40, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:41:05,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2024-11-14 05:41:05,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-14 05:41:06,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-11-14 05:41:06,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:41:06,295 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:41:06,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:06,295 INFO L85 PathProgramCache]: Analyzing trace with hash -223201319, now seen corresponding path program 3 times [2024-11-14 05:41:06,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:41:06,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138507570] [2024-11-14 05:41:06,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:41:06,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:41:06,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:41:06,298 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:41:06,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-14 05:41:08,718 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 05:41:08,718 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:41:08,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:41:08,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:41:09,128 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 370 proven. 55 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-14 05:41:09,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:41:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 370 proven. 55 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-14 05:41:10,399 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:41:10,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138507570] [2024-11-14 05:41:10,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138507570] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:41:10,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1541917799] [2024-11-14 05:41:10,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:41:10,399 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:41:10,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:41:10,402 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:41:10,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-14 05:43:57,456 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 05:43:57,456 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:43:57,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:43:57,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:43:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 370 proven. 55 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-14 05:43:57,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:43:57,972 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 370 proven. 55 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-14 05:43:57,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1541917799] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:43:57,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127802705] [2024-11-14 05:43:57,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:43:57,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:43:57,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:43:57,975 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:43:57,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae8a92d2-4772-4e72-9ee9-4d35b29da5ef/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process