./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/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_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a97724240a87192496d8328468f54cf5b25ba6881d4dae32505036169c4a273 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:27:46,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:27:46,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:27:46,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:27:46,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:27:46,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:27:46,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:27:46,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:27:46,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:27:46,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:27:46,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:27:46,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:27:46,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:27:46,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:27:46,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:27:46,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:27:46,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:27:46,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:27:46,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:27:46,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:27:46,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:27:46,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:27:46,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:27:46,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:27:46,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:27:46,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:27:46,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:27:46,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:27:46,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:27:46,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:27:46,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:27:46,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:27:46,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:27:46,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:27:46,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:27:46,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:27:46,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:27:46,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:27:46,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:27:46,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:27:46,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:27:46,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-13 02:27:46,700 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:27:46,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:27:46,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:27:46,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:27:46,709 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:27:46,709 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:27:46,709 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:27:46,709 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:27:46,710 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:27:46,710 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:27:46,711 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:27:46,711 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:27:46,711 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:27:46,711 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:27:46,712 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:27:46,712 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:27:46,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 02:27:46,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 02:27:46,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:27:46,714 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:27:46,714 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 02:27:46,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:27:46,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:27:46,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:27:46,715 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 02:27:46,715 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 02:27:46,716 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 02:27:46,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:27:46,717 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:27:46,717 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:27:46,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:27:46,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:27:46,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:27:46,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:27:46,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:27:46,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:27:46,719 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:27:46,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:27:46,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:27:46,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:27:46,719 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_5177b49b-37c0-4714-9779-374c189dddf6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a97724240a87192496d8328468f54cf5b25ba6881d4dae32505036169c4a273 [2021-11-13 02:27:47,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:27:47,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:27:47,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:27:47,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:27:47,146 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:27:47,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i [2021-11-13 02:27:47,226 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/data/4008670cb/8a752b0bf44040ae956af14216d348f0/FLAGf06f68d21 [2021-11-13 02:27:47,787 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:27:47,788 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i [2021-11-13 02:27:47,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/data/4008670cb/8a752b0bf44040ae956af14216d348f0/FLAGf06f68d21 [2021-11-13 02:27:48,021 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/data/4008670cb/8a752b0bf44040ae956af14216d348f0 [2021-11-13 02:27:48,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:27:48,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:27:48,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:27:48,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:27:48,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:27:48,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:27:48" (1/1) ... [2021-11-13 02:27:48,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26fdfc36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:48, skipping insertion in model container [2021-11-13 02:27:48,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:27:48" (1/1) ... [2021-11-13 02:27:48,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:27:48,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:27:48,526 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_5177b49b-37c0-4714-9779-374c189dddf6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[33021,33034] [2021-11-13 02:27:48,718 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_5177b49b-37c0-4714-9779-374c189dddf6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[49681,49694] [2021-11-13 02:27:48,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:27:48,738 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) [2021-11-13 02:27:48,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6dac4476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:48, skipping insertion in model container [2021-11-13 02:27:48,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:27:48,740 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:27:48,742 INFO L158 Benchmark]: Toolchain (without parser) took 714.84ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 48.9MB in the beginning and 82.4MB in the end (delta: -33.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-11-13 02:27:48,743 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:27:48,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.81ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 48.7MB in the beginning and 82.4MB in the end (delta: -33.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-11-13 02:27:48,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.81ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 48.7MB in the beginning and 82.4MB in the end (delta: -33.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: 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_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/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_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a97724240a87192496d8328468f54cf5b25ba6881d4dae32505036169c4a273 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:27:50,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:27:50,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:27:51,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:27:51,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:27:51,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:27:51,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:27:51,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:27:51,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:27:51,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:27:51,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:27:51,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:27:51,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:27:51,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:27:51,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:27:51,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:27:51,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:27:51,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:27:51,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:27:51,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:27:51,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:27:51,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:27:51,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:27:51,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:27:51,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:27:51,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:27:51,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:27:51,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:27:51,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:27:51,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:27:51,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:27:51,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:27:51,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:27:51,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:27:51,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:27:51,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:27:51,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:27:51,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:27:51,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:27:51,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:27:51,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:27:51,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-13 02:27:51,147 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:27:51,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:27:51,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:27:51,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:27:51,149 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:27:51,149 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:27:51,150 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:27:51,150 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:27:51,150 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:27:51,150 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:27:51,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 02:27:51,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 02:27:51,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:27:51,154 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:27:51,154 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 02:27:51,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:27:51,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:27:51,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:27:51,155 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 02:27:51,155 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 02:27:51,155 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 02:27:51,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:27:51,156 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:27:51,156 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:27:51,156 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:27:51,156 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:27:51,157 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:27:51,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:27:51,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:27:51,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:27:51,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:27:51,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:27:51,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:27:51,159 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:27:51,159 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:27:51,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:27:51,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:27:51,160 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_5177b49b-37c0-4714-9779-374c189dddf6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a97724240a87192496d8328468f54cf5b25ba6881d4dae32505036169c4a273 [2021-11-13 02:27:51,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:27:51,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:27:51,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:27:51,573 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:27:51,574 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:27:51,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i [2021-11-13 02:27:51,659 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/data/3228bf30f/5a9a5401e14e4a4189a2e14d576b88c0/FLAGe384137c6 [2021-11-13 02:27:52,343 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:27:52,345 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i [2021-11-13 02:27:52,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/data/3228bf30f/5a9a5401e14e4a4189a2e14d576b88c0/FLAGe384137c6 [2021-11-13 02:27:52,513 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/data/3228bf30f/5a9a5401e14e4a4189a2e14d576b88c0 [2021-11-13 02:27:52,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:27:52,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:27:52,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:27:52,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:27:52,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:27:52,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:27:52" (1/1) ... [2021-11-13 02:27:52,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6029bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:52, skipping insertion in model container [2021-11-13 02:27:52,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:27:52" (1/1) ... [2021-11-13 02:27:52,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:27:52,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:27:53,114 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_5177b49b-37c0-4714-9779-374c189dddf6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[33021,33034] [2021-11-13 02:27:53,251 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_5177b49b-37c0-4714-9779-374c189dddf6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[49681,49694] [2021-11-13 02:27:53,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:27:53,277 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:27:53,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:27:53,330 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_5177b49b-37c0-4714-9779-374c189dddf6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[33021,33034] [2021-11-13 02:27:53,476 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_5177b49b-37c0-4714-9779-374c189dddf6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[49681,49694] [2021-11-13 02:27:53,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:27:53,484 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:27:53,513 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_5177b49b-37c0-4714-9779-374c189dddf6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[33021,33034] [2021-11-13 02:27:53,587 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_5177b49b-37c0-4714-9779-374c189dddf6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[49681,49694] [2021-11-13 02:27:53,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:27:53,645 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:27:53,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53 WrapperNode [2021-11-13 02:27:53,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:27:53,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:27:53,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:27:53,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:27:53,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (1/1) ... [2021-11-13 02:27:53,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (1/1) ... [2021-11-13 02:27:53,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:27:53,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:27:53,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:27:53,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:27:53,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (1/1) ... [2021-11-13 02:27:53,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (1/1) ... [2021-11-13 02:27:53,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (1/1) ... [2021-11-13 02:27:53,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (1/1) ... [2021-11-13 02:27:53,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (1/1) ... [2021-11-13 02:27:53,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (1/1) ... [2021-11-13 02:27:53,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (1/1) ... [2021-11-13 02:27:53,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:27:53,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:27:53,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:27:53,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:27:53,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (1/1) ... [2021-11-13 02:27:53,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:27:53,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:27:54,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:27:54,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:27:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:27:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:27:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 02:27:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 02:27:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 02:27:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 02:27:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:27:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:27:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:27:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-13 02:27:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:27:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:27:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:27:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:27:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:27:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:27:54,413 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-13 02:28:00,866 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:28:00,866 INFO L299 CfgBuilder]: Removed 83 assume(true) statements. [2021-11-13 02:28:00,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:00 BoogieIcfgContainer [2021-11-13 02:28:00,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:28:00,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:28:00,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:28:00,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:28:00,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:27:52" (1/3) ... [2021-11-13 02:28:00,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74982540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:00, skipping insertion in model container [2021-11-13 02:28:00,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:53" (2/3) ... [2021-11-13 02:28:00,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74982540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:00, skipping insertion in model container [2021-11-13 02:28:00,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:00" (3/3) ... [2021-11-13 02:28:00,883 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-1.i [2021-11-13 02:28:00,889 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:28:00,890 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 729 error locations. [2021-11-13 02:28:00,947 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:28:00,956 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:28:00,957 INFO L340 AbstractCegarLoop]: Starting to check reachability of 729 error locations. [2021-11-13 02:28:01,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 1456 states, 719 states have (on average 2.2378303198887344) internal successors, (1609), 1447 states have internal predecessors, (1609), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-13 02:28:01,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 02:28:01,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:01,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 02:28:01,040 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:01,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:01,046 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2021-11-13 02:28:01,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:01,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665545908] [2021-11-13 02:28:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:01,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:01,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:01,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:01,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:28:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:01,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 02:28:01,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:01,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:01,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:01,320 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:01,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665545908] [2021-11-13 02:28:01,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665545908] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:01,322 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:01,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:28:01,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282185338] [2021-11-13 02:28:01,324 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:01,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:28:01,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:01,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:28:01,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:28:01,372 INFO L87 Difference]: Start difference. First operand has 1456 states, 719 states have (on average 2.2378303198887344) internal successors, (1609), 1447 states have internal predecessors, (1609), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:01,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:01,497 INFO L93 Difference]: Finished difference Result 1438 states and 1521 transitions. [2021-11-13 02:28:01,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:28:01,500 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 02:28:01,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:01,532 INFO L225 Difference]: With dead ends: 1438 [2021-11-13 02:28:01,532 INFO L226 Difference]: Without dead ends: 1436 [2021-11-13 02:28:01,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:28:01,538 INFO L933 BasicCegarLoop]: 1521 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:01,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 12.23ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 02:28:01,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2021-11-13 02:28:01,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1436. [2021-11-13 02:28:01,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 710 states have (on average 2.108450704225352) internal successors, (1497), 1427 states have internal predecessors, (1497), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-13 02:28:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1519 transitions. [2021-11-13 02:28:01,666 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1519 transitions. Word has length 5 [2021-11-13 02:28:01,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:01,666 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 1519 transitions. [2021-11-13 02:28:01,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1519 transitions. [2021-11-13 02:28:01,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 02:28:01,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:01,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 02:28:01,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:01,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:01,876 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:01,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:01,877 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2021-11-13 02:28:01,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:01,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066333812] [2021-11-13 02:28:01,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:01,878 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:01,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:01,879 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:01,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:28:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:02,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:28:02,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:02,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:28:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:02,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:02,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:02,159 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:02,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066333812] [2021-11-13 02:28:02,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066333812] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:02,164 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:02,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:28:02,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886378547] [2021-11-13 02:28:02,165 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:02,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:28:02,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:02,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:28:02,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:28:02,174 INFO L87 Difference]: Start difference. First operand 1436 states and 1519 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:05,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:05,360 INFO L93 Difference]: Finished difference Result 1692 states and 1818 transitions. [2021-11-13 02:28:05,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:28:05,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 02:28:05,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:05,372 INFO L225 Difference]: With dead ends: 1692 [2021-11-13 02:28:05,372 INFO L226 Difference]: Without dead ends: 1692 [2021-11-13 02:28:05,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:28:05,374 INFO L933 BasicCegarLoop]: 957 mSDtfsCounter, 1369 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2593.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.36ms SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3067.27ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:05,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 1221 Invalid, 983 Unknown, 0 Unchecked, 23.36ms Time], IncrementalHoareTripleChecker [102 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 3067.27ms Time] [2021-11-13 02:28:05,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2021-11-13 02:28:05,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1421. [2021-11-13 02:28:05,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 786 states have (on average 1.960559796437659) internal successors, (1541), 1412 states have internal predecessors, (1541), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-13 02:28:05,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1563 transitions. [2021-11-13 02:28:05,441 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1563 transitions. Word has length 5 [2021-11-13 02:28:05,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:05,441 INFO L470 AbstractCegarLoop]: Abstraction has 1421 states and 1563 transitions. [2021-11-13 02:28:05,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:05,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1563 transitions. [2021-11-13 02:28:05,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 02:28:05,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:05,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 02:28:05,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:05,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:05,661 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:05,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:05,661 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2021-11-13 02:28:05,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:05,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500175079] [2021-11-13 02:28:05,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:05,662 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:05,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:05,663 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:05,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:28:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:05,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:28:05,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:05,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:28:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:05,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:05,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:05,916 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:05,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500175079] [2021-11-13 02:28:05,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500175079] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:05,917 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:05,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-13 02:28:05,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109248388] [2021-11-13 02:28:05,917 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:05,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:28:05,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:05,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:28:05,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:28:05,918 INFO L87 Difference]: Start difference. First operand 1421 states and 1563 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:13,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:13,591 INFO L93 Difference]: Finished difference Result 1994 states and 2186 transitions. [2021-11-13 02:28:13,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:28:13,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 02:28:13,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:13,603 INFO L225 Difference]: With dead ends: 1994 [2021-11-13 02:28:13,604 INFO L226 Difference]: Without dead ends: 1994 [2021-11-13 02:28:13,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:28:13,605 INFO L933 BasicCegarLoop]: 1290 mSDtfsCounter, 827 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6741.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.49ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7562.19ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:13,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [834 Valid, 2482 Invalid, 1667 Unknown, 0 Unchecked, 21.49ms Time], IncrementalHoareTripleChecker [27 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 7562.19ms Time] [2021-11-13 02:28:13,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2021-11-13 02:28:13,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1577. [2021-11-13 02:28:13,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 952 states have (on average 1.940126050420168) internal successors, (1847), 1568 states have internal predecessors, (1847), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-13 02:28:13,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 1869 transitions. [2021-11-13 02:28:13,653 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 1869 transitions. Word has length 5 [2021-11-13 02:28:13,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:13,653 INFO L470 AbstractCegarLoop]: Abstraction has 1577 states and 1869 transitions. [2021-11-13 02:28:13,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 1869 transitions. [2021-11-13 02:28:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 02:28:13,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:13,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 02:28:13,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:13,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:13,866 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:13,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:13,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1157601995, now seen corresponding path program 1 times [2021-11-13 02:28:13,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:13,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383362067] [2021-11-13 02:28:13,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:13,868 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:13,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:13,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:13,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:28:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:13,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:28:13,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:14,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:14,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:14,046 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:14,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383362067] [2021-11-13 02:28:14,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383362067] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:14,046 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:14,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:28:14,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487217739] [2021-11-13 02:28:14,047 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:14,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:28:14,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:14,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:28:14,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:28:14,049 INFO L87 Difference]: Start difference. First operand 1577 states and 1869 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:14,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:14,243 INFO L93 Difference]: Finished difference Result 3139 states and 3723 transitions. [2021-11-13 02:28:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:28:14,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 02:28:14,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:14,262 INFO L225 Difference]: With dead ends: 3139 [2021-11-13 02:28:14,262 INFO L226 Difference]: Without dead ends: 3139 [2021-11-13 02:28:14,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:28:14,264 INFO L933 BasicCegarLoop]: 1699 mSDtfsCounter, 2754 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.03ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.19ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:14,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2776 Valid, 3121 Invalid, 38 Unknown, 0 Unchecked, 7.03ms Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 141.19ms Time] [2021-11-13 02:28:14,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2021-11-13 02:28:14,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 2522. [2021-11-13 02:28:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2522 states, 1892 states have (on average 1.9439746300211416) internal successors, (3678), 2507 states have internal predecessors, (3678), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:14,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3722 transitions. [2021-11-13 02:28:14,347 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3722 transitions. Word has length 6 [2021-11-13 02:28:14,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:14,347 INFO L470 AbstractCegarLoop]: Abstraction has 2522 states and 3722 transitions. [2021-11-13 02:28:14,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:14,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3722 transitions. [2021-11-13 02:28:14,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 02:28:14,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:14,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:14,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:14,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:14,559 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:14,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2021-11-13 02:28:14,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:14,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5954759] [2021-11-13 02:28:14,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:14,561 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:14,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:14,562 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:14,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:28:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:14,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:28:14,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:14,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:14,779 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:14,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5954759] [2021-11-13 02:28:14,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5954759] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:14,780 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:14,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:28:14,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67243726] [2021-11-13 02:28:14,781 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:14,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:28:14,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:14,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:28:14,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:28:14,782 INFO L87 Difference]: Start difference. First operand 2522 states and 3722 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:14,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:14,831 INFO L93 Difference]: Finished difference Result 2462 states and 3636 transitions. [2021-11-13 02:28:14,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:28:14,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-13 02:28:14,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:14,848 INFO L225 Difference]: With dead ends: 2462 [2021-11-13 02:28:14,849 INFO L226 Difference]: Without dead ends: 2462 [2021-11-13 02:28:14,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:28:14,852 INFO L933 BasicCegarLoop]: 1370 mSDtfsCounter, 1340 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.19ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.77ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:14,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1351 Valid, 1426 Invalid, 14 Unknown, 0 Unchecked, 3.19ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 20.77ms Time] [2021-11-13 02:28:14,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2462 states. [2021-11-13 02:28:14,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2462 to 2462. [2021-11-13 02:28:14,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2462 states, 1856 states have (on average 1.9353448275862069) internal successors, (3592), 2447 states have internal predecessors, (3592), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2462 states to 2462 states and 3636 transitions. [2021-11-13 02:28:14,935 INFO L78 Accepts]: Start accepts. Automaton has 2462 states and 3636 transitions. Word has length 11 [2021-11-13 02:28:14,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:14,935 INFO L470 AbstractCegarLoop]: Abstraction has 2462 states and 3636 transitions. [2021-11-13 02:28:14,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2462 states and 3636 transitions. [2021-11-13 02:28:14,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 02:28:14,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:14,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:14,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:15,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:15,149 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:15,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:15,150 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2021-11-13 02:28:15,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:15,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685186024] [2021-11-13 02:28:15,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:15,151 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:15,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:15,152 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:15,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:28:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:15,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:28:15,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:15,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:15,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:15,423 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:15,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685186024] [2021-11-13 02:28:15,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685186024] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:15,424 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:15,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-13 02:28:15,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474634023] [2021-11-13 02:28:15,425 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:15,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:28:15,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:15,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:28:15,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:28:15,426 INFO L87 Difference]: Start difference. First operand 2462 states and 3636 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:15,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:15,558 INFO L93 Difference]: Finished difference Result 2434 states and 3580 transitions. [2021-11-13 02:28:15,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:28:15,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-13 02:28:15,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:15,573 INFO L225 Difference]: With dead ends: 2434 [2021-11-13 02:28:15,573 INFO L226 Difference]: Without dead ends: 2434 [2021-11-13 02:28:15,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:15,574 INFO L933 BasicCegarLoop]: 1325 mSDtfsCounter, 2612 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 2671 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.26ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.90ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:15,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2623 Valid, 2671 Invalid, 87 Unknown, 0 Unchecked, 9.26ms Time], IncrementalHoareTripleChecker [53 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 85.90ms Time] [2021-11-13 02:28:15,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2021-11-13 02:28:15,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2432. [2021-11-13 02:28:15,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 1840 states have (on average 1.9206521739130435) internal successors, (3534), 2417 states have internal predecessors, (3534), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3578 transitions. [2021-11-13 02:28:15,637 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3578 transitions. Word has length 13 [2021-11-13 02:28:15,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:15,638 INFO L470 AbstractCegarLoop]: Abstraction has 2432 states and 3578 transitions. [2021-11-13 02:28:15,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:15,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3578 transitions. [2021-11-13 02:28:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 02:28:15,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:15,639 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] [2021-11-13 02:28:15,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:15,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:15,854 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:15,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:15,855 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2021-11-13 02:28:15,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:15,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066807750] [2021-11-13 02:28:15,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:15,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:15,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:15,856 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:15,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:28:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:16,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:28:16,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:16,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:28:16,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:16,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:16,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:16,288 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:16,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066807750] [2021-11-13 02:28:16,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066807750] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:16,288 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:16,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:28:16,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357844942] [2021-11-13 02:28:16,288 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:16,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:28:16,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:16,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:28:16,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:28:16,292 INFO L87 Difference]: Start difference. First operand 2432 states and 3578 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:19,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:19,944 INFO L93 Difference]: Finished difference Result 3738 states and 5340 transitions. [2021-11-13 02:28:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:28:19,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-13 02:28:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:19,964 INFO L225 Difference]: With dead ends: 3738 [2021-11-13 02:28:19,965 INFO L226 Difference]: Without dead ends: 3738 [2021-11-13 02:28:19,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:28:19,966 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 3015 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2991.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3023 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.37ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3570.97ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:19,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3023 Valid, 1552 Invalid, 1445 Unknown, 0 Unchecked, 14.37ms Time], IncrementalHoareTripleChecker [49 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 3570.97ms Time] [2021-11-13 02:28:19,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2021-11-13 02:28:20,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 2428. [2021-11-13 02:28:20,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1840 states have (on average 1.916304347826087) internal successors, (3526), 2413 states have internal predecessors, (3526), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:20,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3570 transitions. [2021-11-13 02:28:20,069 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3570 transitions. Word has length 27 [2021-11-13 02:28:20,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:20,069 INFO L470 AbstractCegarLoop]: Abstraction has 2428 states and 3570 transitions. [2021-11-13 02:28:20,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:20,070 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3570 transitions. [2021-11-13 02:28:20,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 02:28:20,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:20,071 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] [2021-11-13 02:28:20,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:20,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:20,286 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:20,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:20,287 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2021-11-13 02:28:20,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:20,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686088194] [2021-11-13 02:28:20,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:20,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:20,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:20,288 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:20,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:28:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:20,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:28:20,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:20,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:28:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:20,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:21,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:21,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:21,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686088194] [2021-11-13 02:28:21,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686088194] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:21,091 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:21,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 02:28:21,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12303278] [2021-11-13 02:28:21,092 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:21,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:28:21,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:28:21,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:21,093 INFO L87 Difference]: Start difference. First operand 2428 states and 3570 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:30,853 INFO L93 Difference]: Finished difference Result 3015 states and 4197 transitions. [2021-11-13 02:28:30,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:28:30,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-13 02:28:30,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:30,866 INFO L225 Difference]: With dead ends: 3015 [2021-11-13 02:28:30,866 INFO L226 Difference]: Without dead ends: 3015 [2021-11-13 02:28:30,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:28:30,867 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 2101 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8714.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2101 SdHoareTripleChecker+Valid, 2804 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.63ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9637.85ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:30,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2101 Valid, 2804 Invalid, 2312 Unknown, 0 Unchecked, 13.63ms Time], IncrementalHoareTripleChecker [32 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 9637.85ms Time] [2021-11-13 02:28:30,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2021-11-13 02:28:30,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 2424. [2021-11-13 02:28:30,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 1840 states have (on average 1.9119565217391303) internal successors, (3518), 2409 states have internal predecessors, (3518), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 3562 transitions. [2021-11-13 02:28:30,920 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 3562 transitions. Word has length 27 [2021-11-13 02:28:30,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:30,920 INFO L470 AbstractCegarLoop]: Abstraction has 2424 states and 3562 transitions. [2021-11-13 02:28:30,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:30,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 3562 transitions. [2021-11-13 02:28:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-13 02:28:30,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:30,922 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, 1, 1, 1] [2021-11-13 02:28:30,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:31,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:31,138 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:31,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:31,138 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2021-11-13 02:28:31,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:31,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232513805] [2021-11-13 02:28:31,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:31,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:31,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:31,140 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:31,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 02:28:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:31,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:28:31,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:31,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:31,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:31,540 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:31,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232513805] [2021-11-13 02:28:31,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232513805] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:31,540 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:31,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 02:28:31,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615547254] [2021-11-13 02:28:31,541 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:31,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:28:31,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:31,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:28:31,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:28:31,542 INFO L87 Difference]: Start difference. First operand 2424 states and 3562 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:31,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:31,606 INFO L93 Difference]: Finished difference Result 2412 states and 3542 transitions. [2021-11-13 02:28:31,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:28:31,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-13 02:28:31,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:31,619 INFO L225 Difference]: With dead ends: 2412 [2021-11-13 02:28:31,619 INFO L226 Difference]: Without dead ends: 2412 [2021-11-13 02:28:31,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:28:31,620 INFO L933 BasicCegarLoop]: 1319 mSDtfsCounter, 1287 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.03ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.68ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:31,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1298 Valid, 2649 Invalid, 43 Unknown, 0 Unchecked, 4.03ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 37.68ms Time] [2021-11-13 02:28:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2021-11-13 02:28:31,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2021-11-13 02:28:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 1828 states have (on average 1.9135667396061269) internal successors, (3498), 2397 states have internal predecessors, (3498), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3542 transitions. [2021-11-13 02:28:31,669 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3542 transitions. Word has length 42 [2021-11-13 02:28:31,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:31,669 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3542 transitions. [2021-11-13 02:28:31,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:31,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3542 transitions. [2021-11-13 02:28:31,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-13 02:28:31,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:31,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:31,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:31,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:31,883 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:31,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2021-11-13 02:28:31,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:31,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195052187] [2021-11-13 02:28:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:31,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:31,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:31,886 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:31,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 02:28:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:32,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:28:32,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:32,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:32,771 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:32,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195052187] [2021-11-13 02:28:32,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195052187] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:32,771 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:32,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:28:32,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890490855] [2021-11-13 02:28:32,772 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:32,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:28:32,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:32,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:28:32,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:28:32,773 INFO L87 Difference]: Start difference. First operand 2412 states and 3542 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:32,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:32,855 INFO L93 Difference]: Finished difference Result 2228 states and 3187 transitions. [2021-11-13 02:28:32,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:28:32,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-13 02:28:32,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:32,876 INFO L225 Difference]: With dead ends: 2228 [2021-11-13 02:28:32,876 INFO L226 Difference]: Without dead ends: 2228 [2021-11-13 02:28:32,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:28:32,877 INFO L933 BasicCegarLoop]: 1327 mSDtfsCounter, 67 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.40ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.76ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:32,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 2559 Invalid, 28 Unknown, 0 Unchecked, 3.40ms Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 65.76ms Time] [2021-11-13 02:28:32,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-11-13 02:28:32,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2228. [2021-11-13 02:28:32,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 1644 states have (on average 1.911800486618005) internal successors, (3143), 2213 states have internal predecessors, (3143), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 3187 transitions. [2021-11-13 02:28:32,919 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 3187 transitions. Word has length 50 [2021-11-13 02:28:32,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:32,920 INFO L470 AbstractCegarLoop]: Abstraction has 2228 states and 3187 transitions. [2021-11-13 02:28:32,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:32,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 3187 transitions. [2021-11-13 02:28:32,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-13 02:28:32,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:32,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:32,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:33,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:33,139 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:33,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:33,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2021-11-13 02:28:33,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:33,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363582765] [2021-11-13 02:28:33,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:33,140 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:33,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:33,141 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:33,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 02:28:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:33,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 02:28:33,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:33,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:28:33,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:28:34,126 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 02:28:34,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2021-11-13 02:28:34,136 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:28:34,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2021-11-13 02:28:34,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:34,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:38,735 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:38,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363582765] [2021-11-13 02:28:38,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363582765] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:38,735 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:38,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 02:28:38,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27573192] [2021-11-13 02:28:38,736 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:38,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:28:38,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:38,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:28:38,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-13 02:28:38,737 INFO L87 Difference]: Start difference. First operand 2228 states and 3187 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:38,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:38,872 INFO L93 Difference]: Finished difference Result 2227 states and 3185 transitions. [2021-11-13 02:28:38,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:28:38,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-13 02:28:38,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:38,881 INFO L225 Difference]: With dead ends: 2227 [2021-11-13 02:28:38,881 INFO L226 Difference]: Without dead ends: 2227 [2021-11-13 02:28:38,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-13 02:28:38,882 INFO L933 BasicCegarLoop]: 1308 mSDtfsCounter, 41 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 917 IncrementalHoareTripleChecker+Unchecked, 98.69ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:38,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 2092 Invalid, 934 Unknown, 0 Unchecked, 4.62ms Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 917 Unchecked, 98.69ms Time] [2021-11-13 02:28:38,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2021-11-13 02:28:38,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2227. [2021-11-13 02:28:38,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1644 states have (on average 1.9105839416058394) internal successors, (3141), 2212 states have internal predecessors, (3141), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:38,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3185 transitions. [2021-11-13 02:28:38,925 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3185 transitions. Word has length 53 [2021-11-13 02:28:38,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:38,925 INFO L470 AbstractCegarLoop]: Abstraction has 2227 states and 3185 transitions. [2021-11-13 02:28:38,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:38,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3185 transitions. [2021-11-13 02:28:38,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-13 02:28:38,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:38,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:38,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:39,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:39,141 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:39,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:39,142 INFO L85 PathProgramCache]: Analyzing trace with hash -61627503, now seen corresponding path program 1 times [2021-11-13 02:28:39,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:39,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462831933] [2021-11-13 02:28:39,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:39,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:39,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:39,144 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:39,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 02:28:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:39,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:28:39,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:39,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:39,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-13 02:28:39,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:39,939 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:39,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462831933] [2021-11-13 02:28:39,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462831933] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:39,940 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:39,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 02:28:39,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575762606] [2021-11-13 02:28:39,940 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:39,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:28:39,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:39,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:28:39,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:39,942 INFO L87 Difference]: Start difference. First operand 2227 states and 3185 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:42,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:42,580 INFO L93 Difference]: Finished difference Result 2194 states and 3119 transitions. [2021-11-13 02:28:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:28:42,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-13 02:28:42,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:42,586 INFO L225 Difference]: With dead ends: 2194 [2021-11-13 02:28:42,586 INFO L226 Difference]: Without dead ends: 2194 [2021-11-13 02:28:42,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:42,587 INFO L933 BasicCegarLoop]: 672 mSDtfsCounter, 2422 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2224.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.41ms SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2594.55ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:42,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2433 Valid, 736 Invalid, 724 Unknown, 0 Unchecked, 8.41ms Time], IncrementalHoareTripleChecker [59 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 2594.55ms Time] [2021-11-13 02:28:42,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2021-11-13 02:28:42,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2021-11-13 02:28:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 1644 states have (on average 1.8704379562043796) internal successors, (3075), 2179 states have internal predecessors, (3075), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:42,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 3119 transitions. [2021-11-13 02:28:42,626 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 3119 transitions. Word has length 55 [2021-11-13 02:28:42,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:42,627 INFO L470 AbstractCegarLoop]: Abstraction has 2194 states and 3119 transitions. [2021-11-13 02:28:42,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:42,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 3119 transitions. [2021-11-13 02:28:42,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 02:28:42,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:42,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:42,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:42,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:42,841 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:42,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:42,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2021-11-13 02:28:42,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:42,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506772603] [2021-11-13 02:28:42,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:42,842 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:42,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:42,844 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:42,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 02:28:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:43,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:28:43,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:43,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:28:43,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-13 02:28:43,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-13 02:28:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:43,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:43,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:43,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506772603] [2021-11-13 02:28:43,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506772603] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:43,343 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:43,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 02:28:43,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513296063] [2021-11-13 02:28:43,343 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:43,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:28:43,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:43,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:28:43,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:28:43,344 INFO L87 Difference]: Start difference. First operand 2194 states and 3119 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:46,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:46,895 INFO L93 Difference]: Finished difference Result 2193 states and 3117 transitions. [2021-11-13 02:28:46,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:28:46,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-13 02:28:46,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:46,899 INFO L225 Difference]: With dead ends: 2193 [2021-11-13 02:28:46,899 INFO L226 Difference]: Without dead ends: 2193 [2021-11-13 02:28:46,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:28:46,900 INFO L933 BasicCegarLoop]: 1289 mSDtfsCounter, 4 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3014.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3329 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.25ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3488.49ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:46,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3329 Invalid, 1833 Unknown, 0 Unchecked, 9.25ms Time], IncrementalHoareTripleChecker [1 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 3488.49ms Time] [2021-11-13 02:28:46,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2021-11-13 02:28:46,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2021-11-13 02:28:46,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 1644 states have (on average 1.869221411192214) internal successors, (3073), 2178 states have internal predecessors, (3073), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:46,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3117 transitions. [2021-11-13 02:28:46,935 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3117 transitions. Word has length 58 [2021-11-13 02:28:46,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:46,936 INFO L470 AbstractCegarLoop]: Abstraction has 2193 states and 3117 transitions. [2021-11-13 02:28:46,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:46,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3117 transitions. [2021-11-13 02:28:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 02:28:46,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:46,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:46,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-13 02:28:47,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:47,150 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:47,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:47,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2021-11-13 02:28:47,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:47,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49891739] [2021-11-13 02:28:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:47,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:47,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:47,153 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:47,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 02:28:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:47,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 02:28:47,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:47,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:28:47,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 02:28:47,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-13 02:28:47,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-13 02:28:47,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-13 02:28:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:47,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:47,879 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:47,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49891739] [2021-11-13 02:28:47,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49891739] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:47,879 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:47,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 02:28:47,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866777357] [2021-11-13 02:28:47,880 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:47,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 02:28:47,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:47,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 02:28:47,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:28:47,881 INFO L87 Difference]: Start difference. First operand 2193 states and 3117 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:59,086 INFO L93 Difference]: Finished difference Result 2192 states and 3115 transitions. [2021-11-13 02:28:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:28:59,087 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-13 02:28:59,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:59,090 INFO L225 Difference]: With dead ends: 2192 [2021-11-13 02:28:59,090 INFO L226 Difference]: Without dead ends: 2192 [2021-11-13 02:28:59,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:28:59,090 INFO L933 BasicCegarLoop]: 1289 mSDtfsCounter, 3 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 3160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10051.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4579 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.56ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11102.73ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:59,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 4579 Invalid, 3161 Unknown, 0 Unchecked, 15.56ms Time], IncrementalHoareTripleChecker [1 Valid, 3160 Invalid, 0 Unknown, 0 Unchecked, 11102.73ms Time] [2021-11-13 02:28:59,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2021-11-13 02:28:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 2192. [2021-11-13 02:28:59,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2192 states, 1642 states have (on average 1.8702801461632157) internal successors, (3071), 2177 states have internal predecessors, (3071), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:28:59,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 3115 transitions. [2021-11-13 02:28:59,120 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 3115 transitions. Word has length 58 [2021-11-13 02:28:59,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:59,120 INFO L470 AbstractCegarLoop]: Abstraction has 2192 states and 3115 transitions. [2021-11-13 02:28:59,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:28:59,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 3115 transitions. [2021-11-13 02:28:59,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 02:28:59,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:59,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:59,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-13 02:28:59,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:59,347 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:28:59,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1665547938, now seen corresponding path program 1 times [2021-11-13 02:28:59,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:59,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153976287] [2021-11-13 02:28:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:59,348 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:59,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:59,349 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:59,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 02:28:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:59,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:28:59,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:59,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:59,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:59,832 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:59,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153976287] [2021-11-13 02:28:59,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153976287] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:59,832 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:59,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 02:28:59,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181130115] [2021-11-13 02:28:59,833 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:59,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:28:59,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:59,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:28:59,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:59,834 INFO L87 Difference]: Start difference. First operand 2192 states and 3115 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:28:59,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:59,957 INFO L93 Difference]: Finished difference Result 2202 states and 3131 transitions. [2021-11-13 02:28:59,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:28:59,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 66 [2021-11-13 02:28:59,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:59,963 INFO L225 Difference]: With dead ends: 2202 [2021-11-13 02:28:59,963 INFO L226 Difference]: Without dead ends: 2202 [2021-11-13 02:28:59,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:28:59,964 INFO L933 BasicCegarLoop]: 1287 mSDtfsCounter, 9 mSDsluCounter, 3842 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5129 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.31ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.86ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:59,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 5129 Invalid, 58 Unknown, 0 Unchecked, 3.31ms Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 89.86ms Time] [2021-11-13 02:28:59,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2021-11-13 02:28:59,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 2202. [2021-11-13 02:28:59,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 1650 states have (on average 1.8684848484848484) internal successors, (3083), 2186 states have internal predecessors, (3083), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (26), 14 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-13 02:29:00,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 3131 transitions. [2021-11-13 02:29:00,000 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 3131 transitions. Word has length 66 [2021-11-13 02:29:00,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:00,001 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 3131 transitions. [2021-11-13 02:29:00,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:29:00,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 3131 transitions. [2021-11-13 02:29:00,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-13 02:29:00,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:00,002 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:00,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:00,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:00,215 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:29:00,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:00,216 INFO L85 PathProgramCache]: Analyzing trace with hash -564345282, now seen corresponding path program 1 times [2021-11-13 02:29:00,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:00,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218527565] [2021-11-13 02:29:00,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:00,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:00,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:00,218 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:00,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 02:29:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:00,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:29:00,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:00,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:00,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:00,787 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:00,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218527565] [2021-11-13 02:29:00,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218527565] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:29:00,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1211120633] [2021-11-13 02:29:00,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:00,788 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:29:00,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:29:00,789 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:29:00,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-13 02:29:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:01,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:29:01,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:01,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:01,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1211120633] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:29:01,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408513175] [2021-11-13 02:29:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:01,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:29:01,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:29:01,325 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:29:01,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-13 02:29:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:01,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:29:01,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:01,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:01,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:01,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:01,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408513175] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:29:01,959 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:29:01,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-13 02:29:01,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306299040] [2021-11-13 02:29:01,959 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:29:01,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 02:29:01,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:01,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 02:29:01,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-13 02:29:01,961 INFO L87 Difference]: Start difference. First operand 2202 states and 3131 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:29:02,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:02,445 INFO L93 Difference]: Finished difference Result 2216 states and 3151 transitions. [2021-11-13 02:29:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 02:29:02,446 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 68 [2021-11-13 02:29:02,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:02,453 INFO L225 Difference]: With dead ends: 2216 [2021-11-13 02:29:02,453 INFO L226 Difference]: Without dead ends: 2210 [2021-11-13 02:29:02,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:29:02,454 INFO L933 BasicCegarLoop]: 1287 mSDtfsCounter, 36 mSDsluCounter, 7680 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 219.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 8967 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.45ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 255.97ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:02,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 8967 Invalid, 184 Unknown, 0 Unchecked, 6.45ms Time], IncrementalHoareTripleChecker [39 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 255.97ms Time] [2021-11-13 02:29:02,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2021-11-13 02:29:02,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2208. [2021-11-13 02:29:02,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1656 states have (on average 1.8659420289855073) internal successors, (3090), 2192 states have internal predecessors, (3090), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (26), 14 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-13 02:29:02,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3138 transitions. [2021-11-13 02:29:02,494 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3138 transitions. Word has length 68 [2021-11-13 02:29:02,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:02,495 INFO L470 AbstractCegarLoop]: Abstraction has 2208 states and 3138 transitions. [2021-11-13 02:29:02,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:29:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3138 transitions. [2021-11-13 02:29:02,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 02:29:02,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:02,496 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:02,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:02,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-11-13 02:29:02,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-11-13 02:29:03,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:03,100 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 02:29:03,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:03,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1076340734, now seen corresponding path program 2 times [2021-11-13 02:29:03,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:03,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087134479] [2021-11-13 02:29:03,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:29:03,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:03,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:03,102 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:03,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-13 02:29:03,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:29:03,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:29:03,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 02:29:03,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:03,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:04,472 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:04,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087134479] [2021-11-13 02:29:04,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087134479] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:29:04,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [599056847] [2021-11-13 02:29:04,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:29:04,472 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:29:04,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:29:04,477 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:29:04,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-13 02:29:05,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:29:05,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:29:05,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 02:29:05,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:05,661 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:05,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:05,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [599056847] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:29:05,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366907207] [2021-11-13 02:29:05,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:29:05,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:29:05,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:29:05,931 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:29:05,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5177b49b-37c0-4714-9779-374c189dddf6/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-13 02:29:26,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:29:26,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:29:26,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 02:29:26,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:26,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:29:26,479 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:29:26,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2021-11-13 02:29:26,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 02:31:04,043 WARN L227 SmtUtils]: Spent 11.39s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 02:31:04,044 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-13 02:31:04,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 79 [2021-11-13 02:31:04,884 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-13 02:31:04,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 38 [2021-11-13 02:31:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:31:05,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:06,822 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-13 02:31:06,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 58 [2021-11-13 02:36:22,083 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-13 02:36:22,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 107 [2021-11-13 02:36:26,153 WARN L838 $PredicateComparison]: unable to prove that (forall ((|#Ultimate.C_memset_#t~loopctr319| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_120| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr319|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) is different from false [2021-11-13 02:36:38,973 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:36:38,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366907207] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:36:38,974 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:36:38,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-13 02:36:38,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287144537] [2021-11-13 02:36:38,974 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:36:38,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-13 02:36:38,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:36:38,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-13 02:36:38,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1541, Unknown=178, NotChecked=84, Total=1980 [2021-11-13 02:36:38,978 INFO L87 Difference]: Start difference. First operand 2208 states and 3138 transitions. Second operand has 45 states, 43 states have (on average 4.976744186046512) internal successors, (214), 43 states have internal predecessors, (214), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-13 02:36:44,851 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|#Ultimate.C_memset_#t~loopctr319| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_120| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr319|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-13 02:37:55,822 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|#Ultimate.C_memset_#t~loopctr319| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr319|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr319_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr319_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (forall ((|#Ultimate.C_memset_#t~loopctr319| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr319|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr319_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr319_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr319_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr319|) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-13 02:38:34,385 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|#Ultimate.C_memset_#t~loopctr319| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr319|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr319_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr319_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr319|)) is different from false [2021-11-13 02:38:36,410 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|#Ultimate.C_memset_#t~loopctr319| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr319|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_85| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr319|)) is different from false [2021-11-13 02:38:38,431 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|#Ultimate.C_memset_#t~loopctr319| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr319|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr319_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr319_85| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr319_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr319|)) is different from false