./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 440f273968b34677cc4ba81db9f48373d3cac4b8a75ac1f970ae3fdbbff89c17 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:52:05,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:52:05,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:52:05,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:52:05,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:52:05,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:52:05,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:52:06,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:52:06,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:52:06,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:52:06,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:52:06,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:52:06,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:52:06,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:52:06,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:52:06,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:52:06,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:52:06,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:52:06,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:52:06,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:52:06,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:52:06,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:52:06,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:52:06,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:52:06,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:52:06,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:52:06,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:52:06,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:52:06,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:52:06,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:52:06,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:52:06,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:52:06,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:52:06,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:52:06,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:52:06,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:52:06,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:52:06,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:52:06,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:52:06,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:52:06,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:52:06,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:52:06,116 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:52:06,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:52:06,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:52:06,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:52:06,118 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:52:06,118 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:52:06,118 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:52:06,119 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:52:06,119 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:52:06,119 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:52:06,120 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:52:06,120 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:52:06,121 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:52:06,121 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:52:06,121 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:52:06,121 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:52:06,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:52:06,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:52:06,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:52:06,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:52:06,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:52:06,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:52:06,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:52:06,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:52:06,124 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:52:06,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:52:06,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:52:06,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:52:06,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:52:06,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:52:06,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:52:06,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:52:06,126 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:52:06,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:52:06,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:52:06,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:52:06,127 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:52:06,127 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 440f273968b34677cc4ba81db9f48373d3cac4b8a75ac1f970ae3fdbbff89c17 [2021-11-12 22:52:06,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:52:06,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:52:06,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:52:06,457 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:52:06,457 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:52:06,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2021-11-12 22:52:06,538 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/data/81cb13808/7697654ae4e14fec9644c74f7666dce8/FLAG9730cdb65 [2021-11-12 22:52:07,322 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:52:07,323 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2021-11-12 22:52:07,385 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/data/81cb13808/7697654ae4e14fec9644c74f7666dce8/FLAG9730cdb65 [2021-11-12 22:52:07,898 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/data/81cb13808/7697654ae4e14fec9644c74f7666dce8 [2021-11-12 22:52:07,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:52:07,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:52:07,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:07,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:52:07,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:52:07,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:07" (1/1) ... [2021-11-12 22:52:07,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1ce5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:07, skipping insertion in model container [2021-11-12 22:52:07,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:07" (1/1) ... [2021-11-12 22:52:07,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:52:08,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:52:08,525 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i[49178,49191] [2021-11-12 22:52:08,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:08,879 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:52:08,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4189efde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:08, skipping insertion in model container [2021-11-12 22:52:08,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:08,880 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:52:08,883 INFO L158 Benchmark]: Toolchain (without parser) took 978.25ms. Allocated memory is still 96.5MB. Free memory was 71.7MB in the beginning and 51.4MB in the end (delta: 20.3MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2021-11-12 22:52:08,884 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 70.6MB in the beginning and 70.5MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:52:08,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 975.55ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 51.4MB in the end (delta: 20.0MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2021-11-12 22:52:08,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 70.6MB in the beginning and 70.5MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 975.55ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 51.4MB in the end (delta: 20.0MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1836]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 440f273968b34677cc4ba81db9f48373d3cac4b8a75ac1f970ae3fdbbff89c17 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:52:11,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:52:11,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:52:11,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:52:11,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:52:11,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:52:11,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:52:11,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:52:11,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:52:11,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:52:11,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:52:11,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:52:11,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:52:11,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:52:11,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:52:11,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:52:11,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:52:11,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:52:11,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:52:11,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:52:11,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:52:11,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:52:11,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:52:11,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:52:11,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:52:11,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:52:11,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:52:11,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:52:11,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:52:11,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:52:11,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:52:11,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:52:11,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:52:11,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:52:11,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:52:11,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:52:11,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:52:11,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:52:11,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:52:11,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:52:11,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:52:11,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:52:11,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:52:11,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:52:11,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:52:11,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:52:11,557 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:52:11,558 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:52:11,558 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:52:11,558 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:52:11,558 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:52:11,559 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:52:11,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:52:11,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:52:11,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:52:11,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:52:11,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:52:11,561 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:52:11,561 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:52:11,562 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:52:11,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:52:11,562 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:52:11,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:52:11,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:52:11,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:52:11,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:52:11,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:52:11,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:52:11,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:52:11,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:52:11,565 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:52:11,565 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:11,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:52:11,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:52:11,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:52:11,566 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 440f273968b34677cc4ba81db9f48373d3cac4b8a75ac1f970ae3fdbbff89c17 [2021-11-12 22:52:11,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:52:12,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:52:12,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:52:12,039 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:52:12,039 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:52:12,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2021-11-12 22:52:12,120 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/data/76ace02f3/8d17d6309e1b466a92c89df42b50f93e/FLAG0d83913e4 [2021-11-12 22:52:13,023 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:52:13,023 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2021-11-12 22:52:13,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/data/76ace02f3/8d17d6309e1b466a92c89df42b50f93e/FLAG0d83913e4 [2021-11-12 22:52:13,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/data/76ace02f3/8d17d6309e1b466a92c89df42b50f93e [2021-11-12 22:52:13,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:52:13,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:52:13,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:13,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:52:13,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:52:13,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:13" (1/1) ... [2021-11-12 22:52:13,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cbe27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:13, skipping insertion in model container [2021-11-12 22:52:13,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:13" (1/1) ... [2021-11-12 22:52:13,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:52:13,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:52:13,681 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i[49178,49191] [2021-11-12 22:52:13,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:14,034 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:52:14,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:52:14,159 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i[49178,49191] [2021-11-12 22:52:14,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:14,258 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:52:14,365 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i[49178,49191] [2021-11-12 22:52:14,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:14,613 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:52:14,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14 WrapperNode [2021-11-12 22:52:14,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:14,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:52:14,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:52:14,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:52:14,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (1/1) ... [2021-11-12 22:52:14,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (1/1) ... [2021-11-12 22:52:14,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:52:14,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:52:14,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:52:14,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:52:14,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (1/1) ... [2021-11-12 22:52:14,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (1/1) ... [2021-11-12 22:52:14,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (1/1) ... [2021-11-12 22:52:14,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (1/1) ... [2021-11-12 22:52:14,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (1/1) ... [2021-11-12 22:52:14,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (1/1) ... [2021-11-12 22:52:14,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (1/1) ... [2021-11-12 22:52:14,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:52:14,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:52:14,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:52:14,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:52:14,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (1/1) ... [2021-11-12 22:52:14,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:52:14,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:52:15,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:52:15,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:52:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-12 22:52:15,055 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-12 22:52:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:52:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:52:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:52:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:52:15,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:52:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2021-11-12 22:52:15,056 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2021-11-12 22:52:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2021-11-12 22:52:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2021-11-12 22:52:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2021-11-12 22:52:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2021-11-12 22:52:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2021-11-12 22:52:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2021-11-12 22:52:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2021-11-12 22:52:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2021-11-12 22:52:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2021-11-12 22:52:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2021-11-12 22:52:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:52:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:52:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2021-11-12 22:52:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2021-11-12 22:52:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-12 22:52:15,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-12 22:52:15,060 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:52:15,060 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:52:15,060 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2021-11-12 22:52:15,060 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2021-11-12 22:52:15,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-12 22:52:15,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-12 22:52:15,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2021-11-12 22:52:15,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2021-11-12 22:52:15,061 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2021-11-12 22:52:15,062 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2021-11-12 22:52:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2021-11-12 22:52:15,062 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2021-11-12 22:52:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:52:15,062 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:52:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:52:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2021-11-12 22:52:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2021-11-12 22:52:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:52:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-12 22:52:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-12 22:52:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:52:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:52:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:52:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-12 22:52:15,065 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-12 22:52:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-12 22:52:15,065 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-12 22:52:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-12 22:52:15,065 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-12 22:52:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:52:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:52:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:52:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:52:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-11-12 22:52:15,067 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-11-12 22:52:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:52:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-11-12 22:52:15,067 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-11-12 22:52:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:52:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2021-11-12 22:52:15,068 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2021-11-12 22:52:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2021-11-12 22:52:15,068 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2021-11-12 22:52:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2021-11-12 22:52:15,069 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2021-11-12 22:52:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 22:52:15,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 22:52:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2021-11-12 22:52:15,069 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2021-11-12 22:52:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:52:15,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:52:15,795 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:52:19,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:52:19,483 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:52:19,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:52:19 BoogieIcfgContainer [2021-11-12 22:52:19,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:52:19,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:52:19,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:52:19,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:52:19,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:52:13" (1/3) ... [2021-11-12 22:52:19,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503c978e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:52:19, skipping insertion in model container [2021-11-12 22:52:19,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:14" (2/3) ... [2021-11-12 22:52:19,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503c978e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:52:19, skipping insertion in model container [2021-11-12 22:52:19,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:52:19" (3/3) ... [2021-11-12 22:52:19,497 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2021-11-12 22:52:19,503 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:52:19,504 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:52:19,561 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:52:19,569 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:52:19,569 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:52:19,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 381 states, 270 states have (on average 1.3407407407407408) internal successors, (362), 280 states have internal predecessors, (362), 79 states have call successors, (79), 31 states have call predecessors, (79), 30 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2021-11-12 22:52:19,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-12 22:52:19,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:19,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:19,619 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:19,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:19,626 INFO L85 PathProgramCache]: Analyzing trace with hash -422849068, now seen corresponding path program 1 times [2021-11-12 22:52:19,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:19,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885276015] [2021-11-12 22:52:19,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:19,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:19,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:19,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:19,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:52:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:20,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:52:20,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:52:20,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:20,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:52:20,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:20,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885276015] [2021-11-12 22:52:20,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885276015] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:20,505 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:20,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:52:20,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103417175] [2021-11-12 22:52:20,508 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:20,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:52:20,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:20,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:52:20,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:52:20,576 INFO L87 Difference]: Start difference. First operand has 381 states, 270 states have (on average 1.3407407407407408) internal successors, (362), 280 states have internal predecessors, (362), 79 states have call successors, (79), 31 states have call predecessors, (79), 30 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-12 22:52:20,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:20,765 INFO L93 Difference]: Finished difference Result 759 states and 1079 transitions. [2021-11-12 22:52:20,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:20,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2021-11-12 22:52:20,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:20,803 INFO L225 Difference]: With dead ends: 759 [2021-11-12 22:52:20,804 INFO L226 Difference]: Without dead ends: 367 [2021-11-12 22:52:20,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:52:20,827 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 0 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.51ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.48ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:20,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1523 Invalid, 6 Unknown, 0 Unchecked, 17.51ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 32.48ms Time] [2021-11-12 22:52:20,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2021-11-12 22:52:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2021-11-12 22:52:20,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 264 states have (on average 1.3106060606060606) internal successors, (346), 266 states have internal predecessors, (346), 73 states have call successors, (73), 30 states have call predecessors, (73), 29 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2021-11-12 22:52:20,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 491 transitions. [2021-11-12 22:52:20,981 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 491 transitions. Word has length 39 [2021-11-12 22:52:20,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:20,983 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 491 transitions. [2021-11-12 22:52:20,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-12 22:52:20,984 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 491 transitions. [2021-11-12 22:52:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-12 22:52:20,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:20,998 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:21,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:21,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:21,215 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:21,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash 568447924, now seen corresponding path program 1 times [2021-11-12 22:52:21,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:21,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801258606] [2021-11-12 22:52:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:21,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:21,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:21,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:21,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:52:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:21,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:52:21,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:21,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:52:21,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:22,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:52:22,223 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:22,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801258606] [2021-11-12 22:52:22,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801258606] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:22,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [450847984] [2021-11-12 22:52:22,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:22,224 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:22,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:22,226 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:22,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-12 22:52:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:22,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:52:22,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:22,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:52:22,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:22,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:52:22,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [450847984] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:22,899 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:52:22,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-12 22:52:22,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758235284] [2021-11-12 22:52:22,900 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:22,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:52:22,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:22,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:52:22,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:52:22,902 INFO L87 Difference]: Start difference. First operand 367 states and 491 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-12 22:52:22,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:22,986 INFO L93 Difference]: Finished difference Result 619 states and 817 transitions. [2021-11-12 22:52:22,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:52:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2021-11-12 22:52:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:22,990 INFO L225 Difference]: With dead ends: 619 [2021-11-12 22:52:22,991 INFO L226 Difference]: Without dead ends: 261 [2021-11-12 22:52:22,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:52:22,994 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 327 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.56ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.21ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:22,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 333 Invalid, 3 Unknown, 0 Unchecked, 3.56ms Time], IncrementalHoareTripleChecker [2 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 50.21ms Time] [2021-11-12 22:52:22,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-11-12 22:52:23,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2021-11-12 22:52:23,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 189 states have (on average 1.2751322751322751) internal successors, (241), 190 states have internal predecessors, (241), 48 states have call successors, (48), 24 states have call predecessors, (48), 23 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-11-12 22:52:23,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 336 transitions. [2021-11-12 22:52:23,022 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 336 transitions. Word has length 41 [2021-11-12 22:52:23,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:23,023 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 336 transitions. [2021-11-12 22:52:23,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-12 22:52:23,024 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 336 transitions. [2021-11-12 22:52:23,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-12 22:52:23,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:23,028 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:23,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:23,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:23,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:23,431 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:23,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:23,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1876641677, now seen corresponding path program 1 times [2021-11-12 22:52:23,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:23,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495014135] [2021-11-12 22:52:23,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:23,438 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:23,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:23,440 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:23,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:52:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:23,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:52:23,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:52:24,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:52:24,618 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:24,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495014135] [2021-11-12 22:52:24,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495014135] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:24,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [987169752] [2021-11-12 22:52:24,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:24,618 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:24,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:24,621 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:24,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-12 22:52:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:25,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:52:25,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:25,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:25,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [987169752] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:25,408 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:52:25,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-12 22:52:25,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399816382] [2021-11-12 22:52:25,409 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:25,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:52:25,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:25,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:52:25,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:52:25,411 INFO L87 Difference]: Start difference. First operand 261 states and 336 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 22:52:25,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:25,567 INFO L93 Difference]: Finished difference Result 624 states and 805 transitions. [2021-11-12 22:52:25,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:52:25,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 59 [2021-11-12 22:52:25,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:25,573 INFO L225 Difference]: With dead ends: 624 [2021-11-12 22:52:25,573 INFO L226 Difference]: Without dead ends: 372 [2021-11-12 22:52:25,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:52:25,576 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 144 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.50ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.49ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:25,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 648 Invalid, 29 Unknown, 0 Unchecked, 4.50ms Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 120.49ms Time] [2021-11-12 22:52:25,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-11-12 22:52:25,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 369. [2021-11-12 22:52:25,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 271 states have (on average 1.2841328413284132) internal successors, (348), 273 states have internal predecessors, (348), 65 states have call successors, (65), 33 states have call predecessors, (65), 32 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-12 22:52:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 477 transitions. [2021-11-12 22:52:25,611 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 477 transitions. Word has length 59 [2021-11-12 22:52:25,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:25,612 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 477 transitions. [2021-11-12 22:52:25,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 22:52:25,612 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 477 transitions. [2021-11-12 22:52:25,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-12 22:52:25,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:25,615 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:25,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:25,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:26,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:26,033 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:26,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:26,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1480147069, now seen corresponding path program 1 times [2021-11-12 22:52:26,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:26,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468208257] [2021-11-12 22:52:26,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:26,036 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:26,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:26,051 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:26,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:52:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:26,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:52:26,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:52:26,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:27,222 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:52:27,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:27,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468208257] [2021-11-12 22:52:27,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468208257] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:27,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1572827589] [2021-11-12 22:52:27,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:27,223 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:27,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:27,224 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:27,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-12 22:52:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:27,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:27,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:27,988 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:27,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:28,207 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:28,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1572827589] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:28,208 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:52:28,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [5, 5] total 11 [2021-11-12 22:52:28,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570991562] [2021-11-12 22:52:28,208 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:28,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:28,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:28,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:28,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:52:28,210 INFO L87 Difference]: Start difference. First operand 369 states and 477 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 22:52:28,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:28,448 INFO L93 Difference]: Finished difference Result 736 states and 956 transitions. [2021-11-12 22:52:28,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:52:28,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 59 [2021-11-12 22:52:28,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:28,455 INFO L225 Difference]: With dead ends: 736 [2021-11-12 22:52:28,455 INFO L226 Difference]: Without dead ends: 385 [2021-11-12 22:52:28,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:52:28,459 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 322 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.61ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.27ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:28,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 980 Invalid, 23 Unknown, 0 Unchecked, 6.61ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 68.27ms Time] [2021-11-12 22:52:28,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-11-12 22:52:28,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 379. [2021-11-12 22:52:28,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 281 states have internal predecessors, (355), 65 states have call successors, (65), 35 states have call predecessors, (65), 34 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-12 22:52:28,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 484 transitions. [2021-11-12 22:52:28,519 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 484 transitions. Word has length 59 [2021-11-12 22:52:28,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:28,520 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 484 transitions. [2021-11-12 22:52:28,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 22:52:28,520 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 484 transitions. [2021-11-12 22:52:28,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-12 22:52:28,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:28,523 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:28,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:28,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:28,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:28,938 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:28,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:28,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1579381705, now seen corresponding path program 1 times [2021-11-12 22:52:28,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:28,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812933367] [2021-11-12 22:52:28,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:28,940 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:28,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:28,942 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:28,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:52:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:29,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:52:29,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:52:29,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:52:29,907 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:29,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812933367] [2021-11-12 22:52:29,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812933367] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:29,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1293775563] [2021-11-12 22:52:29,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:29,908 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:29,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:29,922 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:29,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-12 22:52:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:30,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:30,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:30,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:30,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1293775563] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:30,754 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:52:30,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [5, 5] total 11 [2021-11-12 22:52:30,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190635732] [2021-11-12 22:52:30,755 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:30,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:30,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:30,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:52:30,756 INFO L87 Difference]: Start difference. First operand 379 states and 484 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 22:52:31,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:31,013 INFO L93 Difference]: Finished difference Result 756 states and 968 transitions. [2021-11-12 22:52:31,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:52:31,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 58 [2021-11-12 22:52:31,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:31,018 INFO L225 Difference]: With dead ends: 756 [2021-11-12 22:52:31,018 INFO L226 Difference]: Without dead ends: 395 [2021-11-12 22:52:31,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:52:31,022 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 321 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.10ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.59ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:31,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 977 Invalid, 23 Unknown, 0 Unchecked, 6.10ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 71.59ms Time] [2021-11-12 22:52:31,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2021-11-12 22:52:31,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 389. [2021-11-12 22:52:31,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 287 states have (on average 1.2613240418118468) internal successors, (362), 289 states have internal predecessors, (362), 65 states have call successors, (65), 37 states have call predecessors, (65), 36 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-12 22:52:31,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 491 transitions. [2021-11-12 22:52:31,064 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 491 transitions. Word has length 58 [2021-11-12 22:52:31,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:31,065 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 491 transitions. [2021-11-12 22:52:31,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 22:52:31,066 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 491 transitions. [2021-11-12 22:52:31,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-12 22:52:31,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:31,068 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:31,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:31,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:31,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:31,472 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:31,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:31,473 INFO L85 PathProgramCache]: Analyzing trace with hash 238666508, now seen corresponding path program 1 times [2021-11-12 22:52:31,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:31,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379924095] [2021-11-12 22:52:31,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:31,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:31,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:31,480 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:31,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:52:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:31,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:52:31,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:32,146 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:52:32,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:52:32,641 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:32,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379924095] [2021-11-12 22:52:32,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379924095] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:32,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1612170920] [2021-11-12 22:52:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:32,641 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:32,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:32,646 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:32,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-12 22:52:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:33,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:33,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:33,325 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:33,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:33,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1612170920] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:33,556 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:52:33,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [5, 5] total 11 [2021-11-12 22:52:33,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742497419] [2021-11-12 22:52:33,557 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:33,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:33,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:33,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:33,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:52:33,559 INFO L87 Difference]: Start difference. First operand 389 states and 491 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 22:52:33,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:33,808 INFO L93 Difference]: Finished difference Result 776 states and 980 transitions. [2021-11-12 22:52:33,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:52:33,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 60 [2021-11-12 22:52:33,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:33,813 INFO L225 Difference]: With dead ends: 776 [2021-11-12 22:52:33,813 INFO L226 Difference]: Without dead ends: 405 [2021-11-12 22:52:33,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:52:33,816 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 317 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.98ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:33,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 974 Invalid, 23 Unknown, 0 Unchecked, 5.98ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 84.55ms Time] [2021-11-12 22:52:33,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-12 22:52:33,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 399. [2021-11-12 22:52:33,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 295 states have (on average 1.2508474576271187) internal successors, (369), 297 states have internal predecessors, (369), 65 states have call successors, (65), 39 states have call predecessors, (65), 38 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-12 22:52:33,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 498 transitions. [2021-11-12 22:52:33,854 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 498 transitions. Word has length 60 [2021-11-12 22:52:33,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:33,855 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 498 transitions. [2021-11-12 22:52:33,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 22:52:33,855 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 498 transitions. [2021-11-12 22:52:33,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-12 22:52:33,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:33,857 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:33,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:34,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:34,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:34,276 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:34,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:34,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1364675034, now seen corresponding path program 1 times [2021-11-12 22:52:34,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:34,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755438041] [2021-11-12 22:52:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:34,277 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:34,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:34,280 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:34,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:52:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:34,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:52:34,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:52:34,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:35,161 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:52:35,162 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:35,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755438041] [2021-11-12 22:52:35,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755438041] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:35,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [232186860] [2021-11-12 22:52:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:35,163 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:35,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:35,177 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:35,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-12 22:52:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:35,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:35,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:35,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:35,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [232186860] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:35,891 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:52:35,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [5, 5] total 11 [2021-11-12 22:52:35,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222483010] [2021-11-12 22:52:35,892 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:35,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:35,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:35,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:35,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:52:35,893 INFO L87 Difference]: Start difference. First operand 399 states and 498 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 22:52:36,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:36,185 INFO L93 Difference]: Finished difference Result 1100 states and 1372 transitions. [2021-11-12 22:52:36,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:52:36,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 57 [2021-11-12 22:52:36,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:36,193 INFO L225 Difference]: With dead ends: 1100 [2021-11-12 22:52:36,193 INFO L226 Difference]: Without dead ends: 719 [2021-11-12 22:52:36,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:52:36,196 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 298 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.80ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.34ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:36,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1496 Invalid, 31 Unknown, 0 Unchecked, 7.80ms Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 94.34ms Time] [2021-11-12 22:52:36,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2021-11-12 22:52:36,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 666. [2021-11-12 22:52:36,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 496 states have (on average 1.2600806451612903) internal successors, (625), 500 states have internal predecessors, (625), 105 states have call successors, (105), 65 states have call predecessors, (105), 64 states have return successors, (107), 102 states have call predecessors, (107), 104 states have call successors, (107) [2021-11-12 22:52:36,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 837 transitions. [2021-11-12 22:52:36,248 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 837 transitions. Word has length 57 [2021-11-12 22:52:36,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:36,248 INFO L470 AbstractCegarLoop]: Abstraction has 666 states and 837 transitions. [2021-11-12 22:52:36,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 22:52:36,249 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 837 transitions. [2021-11-12 22:52:36,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-12 22:52:36,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:36,251 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:36,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:36,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:36,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:36,658 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:36,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:36,658 INFO L85 PathProgramCache]: Analyzing trace with hash -899756914, now seen corresponding path program 1 times [2021-11-12 22:52:36,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:36,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079651317] [2021-11-12 22:52:36,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:36,659 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:36,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:36,661 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:36,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:52:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:36,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:52:36,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:37,198 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-12 22:52:37,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-12 22:52:37,554 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:37,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079651317] [2021-11-12 22:52:37,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079651317] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:37,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1291012025] [2021-11-12 22:52:37,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:37,555 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:37,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:37,561 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:37,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-12 22:52:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:37,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:52:37,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 22:52:38,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:38,891 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 22:52:38,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1291012025] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:52:38,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 22:52:38,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 7] total 16 [2021-11-12 22:52:38,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676093507] [2021-11-12 22:52:38,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:38,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:52:38,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:38,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:52:38,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:52:38,893 INFO L87 Difference]: Start difference. First operand 666 states and 837 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-12 22:52:41,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:41,224 INFO L93 Difference]: Finished difference Result 1620 states and 2037 transitions. [2021-11-12 22:52:41,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 22:52:41,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 69 [2021-11-12 22:52:41,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:41,234 INFO L225 Difference]: With dead ends: 1620 [2021-11-12 22:52:41,235 INFO L226 Difference]: Without dead ends: 979 [2021-11-12 22:52:41,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:52:41,241 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 341 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1514.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.26ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1665.36ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:41,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 1996 Invalid, 324 Unknown, 0 Unchecked, 12.26ms Time], IncrementalHoareTripleChecker [16 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 1665.36ms Time] [2021-11-12 22:52:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2021-11-12 22:52:41,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 916. [2021-11-12 22:52:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 686 states have (on average 1.2682215743440233) internal successors, (870), 688 states have internal predecessors, (870), 143 states have call successors, (143), 87 states have call predecessors, (143), 86 states have return successors, (145), 142 states have call predecessors, (145), 142 states have call successors, (145) [2021-11-12 22:52:41,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1158 transitions. [2021-11-12 22:52:41,315 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1158 transitions. Word has length 69 [2021-11-12 22:52:41,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:41,315 INFO L470 AbstractCegarLoop]: Abstraction has 916 states and 1158 transitions. [2021-11-12 22:52:41,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-12 22:52:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1158 transitions. [2021-11-12 22:52:41,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-12 22:52:41,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:41,319 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:41,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:41,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:41,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:41,729 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:41,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:41,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1430146088, now seen corresponding path program 1 times [2021-11-12 22:52:41,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:41,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723165932] [2021-11-12 22:52:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:41,731 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:41,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:41,733 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:41,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 22:52:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:42,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:52:42,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 22:52:42,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-12 22:52:42,792 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:42,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723165932] [2021-11-12 22:52:42,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723165932] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:42,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1688776046] [2021-11-12 22:52:42,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:42,793 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:42,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:42,794 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:42,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-12 22:52:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:43,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:52:43,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:43,662 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:43,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:44,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1688776046] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:44,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439541311] [2021-11-12 22:52:44,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:44,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:52:44,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:52:44,145 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:52:44,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-12 22:52:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:44,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:52:44,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:44,735 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:44,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:52:45,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439541311] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:45,114 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:52:45,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 8, 9, 8, 9] total 17 [2021-11-12 22:52:45,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060548850] [2021-11-12 22:52:45,114 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:52:45,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 22:52:45,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:45,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 22:52:45,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-11-12 22:52:45,117 INFO L87 Difference]: Start difference. First operand 916 states and 1158 transitions. Second operand has 17 states, 17 states have (on average 5.529411764705882) internal successors, (94), 15 states have internal predecessors, (94), 4 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-12 22:52:48,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:48,645 INFO L93 Difference]: Finished difference Result 2135 states and 2696 transitions. [2021-11-12 22:52:48,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-12 22:52:48,646 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.529411764705882) internal successors, (94), 15 states have internal predecessors, (94), 4 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 70 [2021-11-12 22:52:48,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:48,659 INFO L225 Difference]: With dead ends: 2135 [2021-11-12 22:52:48,659 INFO L226 Difference]: Without dead ends: 1243 [2021-11-12 22:52:48,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=179, Invalid=877, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 22:52:48,665 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 766 mSDsluCounter, 3026 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2335.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.22ms SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2625.25ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:48,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 3404 Invalid, 723 Unknown, 0 Unchecked, 22.22ms Time], IncrementalHoareTripleChecker [210 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 2625.25ms Time] [2021-11-12 22:52:48,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2021-11-12 22:52:48,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1178. [2021-11-12 22:52:48,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 884 states have (on average 1.2703619909502262) internal successors, (1123), 888 states have internal predecessors, (1123), 183 states have call successors, (183), 111 states have call predecessors, (183), 110 states have return successors, (185), 180 states have call predecessors, (185), 182 states have call successors, (185) [2021-11-12 22:52:48,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1491 transitions. [2021-11-12 22:52:48,772 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1491 transitions. Word has length 70 [2021-11-12 22:52:48,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:48,772 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 1491 transitions. [2021-11-12 22:52:48,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.529411764705882) internal successors, (94), 15 states have internal predecessors, (94), 4 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-12 22:52:48,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1491 transitions. [2021-11-12 22:52:48,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-12 22:52:48,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:48,781 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:48,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:49,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2021-11-12 22:52:49,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:49,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:52:49,400 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:49,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:49,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1082506311, now seen corresponding path program 1 times [2021-11-12 22:52:49,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:49,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139914440] [2021-11-12 22:52:49,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:49,401 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:49,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:49,402 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:49,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 22:52:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:49,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:52:49,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:50,169 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:50,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:50,595 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:50,595 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:50,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139914440] [2021-11-12 22:52:50,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139914440] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:50,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1986824701] [2021-11-12 22:52:50,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:50,596 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:50,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:50,596 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:50,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-12 22:52:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:50,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:52:50,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:51,255 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:51,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:51,629 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:51,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1986824701] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:51,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661952910] [2021-11-12 22:52:51,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:51,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:52:51,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:52:51,633 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:52:51,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-12 22:52:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:51,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:52:51,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:52,167 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:52,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:52,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661952910] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:52,544 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:52:52,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8, 9, 8, 9] total 11 [2021-11-12 22:52:52,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508073789] [2021-11-12 22:52:52,545 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:52:52,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 22:52:52,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:52,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 22:52:52,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:52:52,548 INFO L87 Difference]: Start difference. First operand 1178 states and 1491 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-12 22:52:56,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:56,353 INFO L93 Difference]: Finished difference Result 2654 states and 3355 transitions. [2021-11-12 22:52:56,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 22:52:56,354 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 73 [2021-11-12 22:52:56,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:56,367 INFO L225 Difference]: With dead ends: 2654 [2021-11-12 22:52:56,367 INFO L226 Difference]: Without dead ends: 1503 [2021-11-12 22:52:56,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:52:56,374 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 720 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2902.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.94ms SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3137.69ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:56,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 2510 Invalid, 758 Unknown, 0 Unchecked, 15.94ms Time], IncrementalHoareTripleChecker [196 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 3137.69ms Time] [2021-11-12 22:52:56,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2021-11-12 22:52:56,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1178. [2021-11-12 22:52:56,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 884 states have (on average 1.2703619909502262) internal successors, (1123), 888 states have internal predecessors, (1123), 183 states have call successors, (183), 111 states have call predecessors, (183), 110 states have return successors, (185), 180 states have call predecessors, (185), 182 states have call successors, (185) [2021-11-12 22:52:56,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1491 transitions. [2021-11-12 22:52:56,478 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1491 transitions. Word has length 73 [2021-11-12 22:52:56,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:56,478 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 1491 transitions. [2021-11-12 22:52:56,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-12 22:52:56,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1491 transitions. [2021-11-12 22:52:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-12 22:52:56,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:56,483 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:56,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:56,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:56,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:57,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:52:57,094 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:57,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:57,095 INFO L85 PathProgramCache]: Analyzing trace with hash -608187279, now seen corresponding path program 1 times [2021-11-12 22:52:57,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:57,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112494846] [2021-11-12 22:52:57,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:57,096 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:57,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:57,097 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:57,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-12 22:52:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:57,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:52:57,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:57,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:58,256 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:58,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112494846] [2021-11-12 22:52:58,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112494846] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:58,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1958350946] [2021-11-12 22:52:58,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:58,257 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:58,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:58,258 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:58,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-11-12 22:52:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:58,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:52:58,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:58,868 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:58,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:59,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1958350946] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:59,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229041998] [2021-11-12 22:52:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:59,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:52:59,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:52:59,222 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:52:59,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-12 22:52:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:59,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:52:59,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:52:59,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:53:00,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229041998] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:53:00,149 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:53:00,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8, 9, 8, 9] total 11 [2021-11-12 22:53:00,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173689703] [2021-11-12 22:53:00,149 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:53:00,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 22:53:00,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:00,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 22:53:00,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:53:00,151 INFO L87 Difference]: Start difference. First operand 1178 states and 1491 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-12 22:53:04,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:04,130 INFO L93 Difference]: Finished difference Result 2654 states and 3355 transitions. [2021-11-12 22:53:04,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 22:53:04,131 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 74 [2021-11-12 22:53:04,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:04,143 INFO L225 Difference]: With dead ends: 2654 [2021-11-12 22:53:04,143 INFO L226 Difference]: Without dead ends: 1503 [2021-11-12 22:53:04,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:53:04,149 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 752 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3152.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.90ms SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3411.58ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:04,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [757 Valid, 2309 Invalid, 888 Unknown, 0 Unchecked, 12.90ms Time], IncrementalHoareTripleChecker [200 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 3411.58ms Time] [2021-11-12 22:53:04,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2021-11-12 22:53:04,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1178. [2021-11-12 22:53:04,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 884 states have (on average 1.2703619909502262) internal successors, (1123), 888 states have internal predecessors, (1123), 183 states have call successors, (183), 111 states have call predecessors, (183), 110 states have return successors, (185), 180 states have call predecessors, (185), 182 states have call successors, (185) [2021-11-12 22:53:04,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1491 transitions. [2021-11-12 22:53:04,239 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1491 transitions. Word has length 74 [2021-11-12 22:53:04,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:04,240 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 1491 transitions. [2021-11-12 22:53:04,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-12 22:53:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1491 transitions. [2021-11-12 22:53:04,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-12 22:53:04,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:04,245 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:04,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:04,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-11-12 22:53:04,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-11-12 22:53:04,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:53:04,849 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:53:04,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:04,849 INFO L85 PathProgramCache]: Analyzing trace with hash -2022215437, now seen corresponding path program 1 times [2021-11-12 22:53:04,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:04,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69979512] [2021-11-12 22:53:04,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:04,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:04,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:04,851 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:04,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-12 22:53:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:05,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:53:05,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:53:05,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-12 22:53:05,591 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:05,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69979512] [2021-11-12 22:53:05,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69979512] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:05,592 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:05,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:53:05,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573666779] [2021-11-12 22:53:05,593 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:05,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:53:05,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:05,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:53:05,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:53:05,595 INFO L87 Difference]: Start difference. First operand 1178 states and 1491 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-12 22:53:06,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:06,496 INFO L93 Difference]: Finished difference Result 3364 states and 4251 transitions. [2021-11-12 22:53:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:06,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 79 [2021-11-12 22:53:06,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:06,513 INFO L225 Difference]: With dead ends: 3364 [2021-11-12 22:53:06,513 INFO L226 Difference]: Without dead ends: 2213 [2021-11-12 22:53:06,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:53:06,519 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 436 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 718.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.54ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 807.96ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:06,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 1022 Invalid, 156 Unknown, 0 Unchecked, 3.54ms Time], IncrementalHoareTripleChecker [27 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 807.96ms Time] [2021-11-12 22:53:06,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2213 states. [2021-11-12 22:53:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 2207. [2021-11-12 22:53:06,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1690 states have (on average 1.2674556213017751) internal successors, (2142), 1698 states have internal predecessors, (2142), 297 states have call successors, (297), 220 states have call predecessors, (297), 219 states have return successors, (299), 292 states have call predecessors, (299), 296 states have call successors, (299) [2021-11-12 22:53:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 2738 transitions. [2021-11-12 22:53:06,687 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 2738 transitions. Word has length 79 [2021-11-12 22:53:06,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:06,688 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 2738 transitions. [2021-11-12 22:53:06,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-12 22:53:06,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 2738 transitions. [2021-11-12 22:53:06,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-12 22:53:06,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:06,694 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:06,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:06,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:06,910 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:53:06,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1967013804, now seen corresponding path program 1 times [2021-11-12 22:53:06,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:06,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451769288] [2021-11-12 22:53:06,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:06,912 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:06,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:06,913 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:06,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-12 22:53:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:07,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:53:07,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:07,840 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-12 22:53:07,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-12 22:53:08,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:08,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451769288] [2021-11-12 22:53:08,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451769288] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:53:08,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [559751317] [2021-11-12 22:53:08,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:08,571 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:53:08,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:53:08,586 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:53:08,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2021-11-12 22:53:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:08,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:53:08,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-12 22:53:09,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:09,888 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-12 22:53:09,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [559751317] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:53:09,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155315948] [2021-11-12 22:53:09,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:09,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:53:09,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:53:09,897 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:53:09,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-12 22:53:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:10,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:53:10,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-12 22:53:10,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:11,148 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-12 22:53:11,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155315948] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:53:11,148 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:53:11,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 11, 12, 11, 12] total 16 [2021-11-12 22:53:11,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699485699] [2021-11-12 22:53:11,149 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:53:11,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-12 22:53:11,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:11,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-12 22:53:11,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:53:11,151 INFO L87 Difference]: Start difference. First operand 2207 states and 2738 transitions. Second operand has 16 states, 16 states have (on average 4.625) internal successors, (74), 13 states have internal predecessors, (74), 4 states have call successors, (17), 5 states have call predecessors, (17), 7 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 22:53:15,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:15,424 INFO L93 Difference]: Finished difference Result 4825 states and 5962 transitions. [2021-11-12 22:53:15,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 22:53:15,425 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.625) internal successors, (74), 13 states have internal predecessors, (74), 4 states have call successors, (17), 5 states have call predecessors, (17), 7 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 84 [2021-11-12 22:53:15,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:15,445 INFO L225 Difference]: With dead ends: 4825 [2021-11-12 22:53:15,445 INFO L226 Difference]: Without dead ends: 2645 [2021-11-12 22:53:15,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=560, Unknown=0, NotChecked=0, Total=702 [2021-11-12 22:53:15,454 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 713 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3471.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.66ms SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3673.06ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:15,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [717 Valid, 2749 Invalid, 823 Unknown, 0 Unchecked, 14.66ms Time], IncrementalHoareTripleChecker [183 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 3673.06ms Time] [2021-11-12 22:53:15,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2021-11-12 22:53:15,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 610. [2021-11-12 22:53:15,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 464 states have (on average 1.228448275862069) internal successors, (570), 464 states have internal predecessors, (570), 81 states have call successors, (81), 65 states have call predecessors, (81), 64 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-12 22:53:15,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 731 transitions. [2021-11-12 22:53:15,519 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 731 transitions. Word has length 84 [2021-11-12 22:53:15,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:15,519 INFO L470 AbstractCegarLoop]: Abstraction has 610 states and 731 transitions. [2021-11-12 22:53:15,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.625) internal successors, (74), 13 states have internal predecessors, (74), 4 states have call successors, (17), 5 states have call predecessors, (17), 7 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 22:53:15,520 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 731 transitions. [2021-11-12 22:53:15,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-12 22:53:15,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:15,522 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:15,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:15,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2021-11-12 22:53:15,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-11-12 22:53:16,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:53:16,138 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:53:16,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:16,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1210197595, now seen corresponding path program 1 times [2021-11-12 22:53:16,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:16,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286430997] [2021-11-12 22:53:16,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:16,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:16,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:16,140 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:16,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-12 22:53:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:53:17,624 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:53:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:53:19,309 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-12 22:53:19,309 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:53:19,310 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:53:19,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:19,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:19,539 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:19,544 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:53:19,597 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,609 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,610 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,610 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,610 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,611 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,611 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,611 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,612 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,612 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,613 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,613 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,613 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,614 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,614 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,615 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,615 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,640 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,640 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,640 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,641 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,641 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,641 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,642 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,642 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,642 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,643 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,643 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,643 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,643 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,644 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,644 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,644 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,645 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,645 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,645 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,645 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,646 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,646 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,646 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,647 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,647 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,647 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,647 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,648 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,648 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,648 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,648 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,649 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,649 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,650 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,650 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,650 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,650 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,651 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,651 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,652 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,652 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,653 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,653 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,653 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,654 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,654 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,654 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,654 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,655 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,655 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,655 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,656 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,656 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,656 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,656 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,657 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,657 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,657 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,658 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,658 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,658 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,659 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,659 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,659 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,659 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,660 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,660 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,660 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,661 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,661 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,661 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,662 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,662 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,662 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,662 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,663 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,663 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,663 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,664 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,664 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,664 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,664 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,665 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,665 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,665 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,666 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,666 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,666 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,666 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,667 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,667 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,667 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,668 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,668 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,668 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,668 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-12 22:53:19,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-12 22:53:19,720 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getProgramExecutionAsString(UnprovableResult.java:132) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getLongDescription(UnprovableResult.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 22:53:19,723 INFO L158 Benchmark]: Toolchain (without parser) took 66613.91ms. Allocated memory was 73.4MB in the beginning and 222.3MB in the end (delta: 148.9MB). Free memory was 50.5MB in the beginning and 155.1MB in the end (delta: -104.6MB). Peak memory consumption was 151.6MB. Max. memory is 16.1GB. [2021-11-12 22:53:19,724 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:53:19,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1503.61ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 50.4MB in the beginning and 63.7MB in the end (delta: -13.3MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2021-11-12 22:53:19,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 195.05ms. Allocated memory is still 96.5MB. Free memory was 63.7MB in the beginning and 58.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-12 22:53:19,725 INFO L158 Benchmark]: Boogie Preprocessor took 127.67ms. Allocated memory is still 96.5MB. Free memory was 57.9MB in the beginning and 51.5MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-12 22:53:19,725 INFO L158 Benchmark]: RCFGBuilder took 4544.61ms. Allocated memory is still 96.5MB. Free memory was 51.5MB in the beginning and 53.0MB in the end (delta: -1.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2021-11-12 22:53:19,726 INFO L158 Benchmark]: TraceAbstraction took 60233.13ms. Allocated memory was 96.5MB in the beginning and 222.3MB in the end (delta: 125.8MB). Free memory was 52.4MB in the beginning and 155.1MB in the end (delta: -102.7MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. [2021-11-12 22:53:19,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1503.61ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 50.4MB in the beginning and 63.7MB in the end (delta: -13.3MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 195.05ms. Allocated memory is still 96.5MB. Free memory was 63.7MB in the beginning and 58.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 127.67ms. Allocated memory is still 96.5MB. Free memory was 57.9MB in the beginning and 51.5MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 4544.61ms. Allocated memory is still 96.5MB. Free memory was 51.5MB in the beginning and 53.0MB in the end (delta: -1.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * TraceAbstraction took 60233.13ms. Allocated memory was 96.5MB in the beginning and 222.3MB in the end (delta: 125.8MB). Free memory was 52.4MB in the beginning and 155.1MB in the end (delta: -102.7MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 22:53:19,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8806dca5-0a6a-4ebb-bf6d-e58067f331d0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null