./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/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 64683904124af3c899dbc8dc5465d8741c0ff10567af23b7315c834db1157458 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:54:23,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:54:23,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:54:23,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:54:23,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:54:23,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:54:23,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:54:23,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:54:23,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:54:23,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:54:23,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:54:23,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:54:23,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:54:23,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:54:23,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:54:23,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:54:23,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:54:23,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:54:23,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:54:23,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:54:23,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:54:23,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:54:23,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:54:23,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:54:23,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:54:23,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:54:23,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:54:23,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:54:23,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:54:23,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:54:23,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:54:23,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:54:23,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:54:23,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:54:23,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:54:23,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:54:23,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:54:23,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:54:23,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:54:23,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:54:23,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:54:23,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-12 22:54:23,255 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:54:23,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:54:23,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:54:23,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:54:23,257 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:54:23,257 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:54:23,258 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:54:23,258 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:54:23,258 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:54:23,258 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:54:23,260 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:54:23,260 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:54:23,260 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:54:23,260 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:54:23,261 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:54:23,261 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:54:23,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 22:54:23,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 22:54:23,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:54:23,263 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:54:23,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:54:23,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:54:23,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:54:23,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:54:23,264 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 22:54:23,264 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 22:54:23,266 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 22:54:23,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:54:23,266 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:54:23,267 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:54:23,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:54:23,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:54:23,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:54:23,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:54:23,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:54:23,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:54:23,269 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:54:23,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:54:23,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:54:23,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:54:23,270 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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64683904124af3c899dbc8dc5465d8741c0ff10567af23b7315c834db1157458 [2021-11-12 22:54:23,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:54:23,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:54:23,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:54:23,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:54:23,546 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:54:23,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i [2021-11-12 22:54:23,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/data/078cef3fd/70bf001adb49442cafad49102592f729/FLAG90dc9d5a6 [2021-11-12 22:54:24,326 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:54:24,327 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i [2021-11-12 22:54:24,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/data/078cef3fd/70bf001adb49442cafad49102592f729/FLAG90dc9d5a6 [2021-11-12 22:54:24,513 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/data/078cef3fd/70bf001adb49442cafad49102592f729 [2021-11-12 22:54:24,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:54:24,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:54:24,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:24,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:54:24,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:54:24,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:24" (1/1) ... [2021-11-12 22:54:24,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a00bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:24, skipping insertion in model container [2021-11-12 22:54:24,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:24" (1/1) ... [2021-11-12 22:54:24,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:54:24,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:54:25,088 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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i[33021,33034] [2021-11-12 22:54:25,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:25,293 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:54:25,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56523d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:25, skipping insertion in model container [2021-11-12 22:54:25,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:25,294 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:54:25,296 INFO L158 Benchmark]: Toolchain (without parser) took 774.22ms. Allocated memory is still 107.0MB. Free memory was 70.5MB in the beginning and 69.7MB in the end (delta: 887.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:54:25,297 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory was 60.6MB in the beginning and 60.5MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:54:25,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 769.23ms. Allocated memory is still 107.0MB. Free memory was 70.3MB in the beginning and 69.7MB in the end (delta: 627.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:54:25,305 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory was 60.6MB in the beginning and 60.5MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 769.23ms. Allocated memory is still 107.0MB. Free memory was 70.3MB in the beginning and 69.7MB in the end (delta: 627.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 752]: 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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/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 64683904124af3c899dbc8dc5465d8741c0ff10567af23b7315c834db1157458 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:54:27,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:54:27,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:54:27,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:54:27,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:54:27,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:54:27,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:54:27,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:54:27,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:54:27,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:54:27,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:54:27,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:54:27,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:54:27,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:54:27,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:54:27,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:54:27,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:54:27,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:54:27,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:54:27,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:54:27,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:54:27,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:54:27,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:54:27,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:54:27,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:54:27,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:54:27,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:54:27,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:54:27,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:54:27,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:54:27,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:54:27,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:54:27,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:54:27,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:54:27,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:54:27,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:54:27,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:54:27,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:54:27,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:54:27,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:54:27,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:54:27,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-12 22:54:27,823 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:54:27,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:54:27,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:54:27,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:54:27,828 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:54:27,828 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:54:27,828 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:54:27,829 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:54:27,829 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:54:27,829 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:54:27,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 22:54:27,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 22:54:27,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:54:27,834 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:54:27,834 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:54:27,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:54:27,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:54:27,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:54:27,835 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 22:54:27,836 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 22:54:27,836 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 22:54:27,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:54:27,836 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:54:27,836 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:54:27,837 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:54:27,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:54:27,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:54:27,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:54:27,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:54:27,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:54:27,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:54:27,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:54:27,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:54:27,839 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:54:27,839 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:27,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:54:27,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:54:27,840 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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64683904124af3c899dbc8dc5465d8741c0ff10567af23b7315c834db1157458 [2021-11-12 22:54:28,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:54:28,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:54:28,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:54:28,224 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:54:28,225 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:54:28,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i [2021-11-12 22:54:28,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/data/11849c977/d59f60a554144921b89c2fe583c68e67/FLAGf742d2cea [2021-11-12 22:54:28,956 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:54:28,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i [2021-11-12 22:54:28,992 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/data/11849c977/d59f60a554144921b89c2fe583c68e67/FLAGf742d2cea [2021-11-12 22:54:29,155 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/data/11849c977/d59f60a554144921b89c2fe583c68e67 [2021-11-12 22:54:29,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:54:29,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:54:29,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:29,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:54:29,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:54:29,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:29" (1/1) ... [2021-11-12 22:54:29,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397eec83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:29, skipping insertion in model container [2021-11-12 22:54:29,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:29" (1/1) ... [2021-11-12 22:54:29,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:54:29,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:54:29,678 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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i[33021,33034] [2021-11-12 22:54:29,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:29,855 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:54:29,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:54:29,914 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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i[33021,33034] [2021-11-12 22:54:30,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:30,007 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:54:30,031 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_93208ec7-70a4-4c9c-8cb1-ca724fe80976/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i[33021,33034] [2021-11-12 22:54:30,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:30,139 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:54:30,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30 WrapperNode [2021-11-12 22:54:30,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:30,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:54:30,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:54:30,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:54:30,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (1/1) ... [2021-11-12 22:54:30,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (1/1) ... [2021-11-12 22:54:30,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:54:30,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:54:30,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:54:30,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:54:30,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (1/1) ... [2021-11-12 22:54:30,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (1/1) ... [2021-11-12 22:54:30,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (1/1) ... [2021-11-12 22:54:30,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (1/1) ... [2021-11-12 22:54:30,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (1/1) ... [2021-11-12 22:54:30,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (1/1) ... [2021-11-12 22:54:30,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (1/1) ... [2021-11-12 22:54:30,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:54:30,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:54:30,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:54:30,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:54:30,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (1/1) ... [2021-11-12 22:54:30,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:54:30,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:54:30,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:54:30,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:54:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:54:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:54:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:54:30,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:54:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:54:30,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:54:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:54:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:54:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:54:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:54:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:54:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:54:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:54:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:54:30,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:54:30,861 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-12 22:54:37,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:54:37,027 INFO L299 CfgBuilder]: Removed 69 assume(true) statements. [2021-11-12 22:54:37,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:54:37 BoogieIcfgContainer [2021-11-12 22:54:37,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:54:37,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:54:37,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:54:37,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:54:37,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:54:29" (1/3) ... [2021-11-12 22:54:37,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256ccc47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:54:37, skipping insertion in model container [2021-11-12 22:54:37,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:30" (2/3) ... [2021-11-12 22:54:37,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256ccc47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:54:37, skipping insertion in model container [2021-11-12 22:54:37,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:54:37" (3/3) ... [2021-11-12 22:54:37,043 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-2.i [2021-11-12 22:54:37,049 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:54:37,050 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 753 error locations. [2021-11-12 22:54:37,099 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:54:37,106 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 [2021-11-12 22:54:37,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 753 error locations. [2021-11-12 22:54:37,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 1473 states, 707 states have (on average 2.267326732673267) internal successors, (1603), 1464 states have internal predecessors, (1603), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-12 22:54:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:54:37,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:37,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:54:37,154 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:54:37,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:37,159 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2021-11-12 22:54:37,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:37,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526639985] [2021-11-12 22:54:37,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:37,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:37,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:37,176 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:37,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:54:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:37,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:54:37,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:37,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:37,459 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:37,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526639985] [2021-11-12 22:54:37,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526639985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:37,461 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:37,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:54:37,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75631584] [2021-11-12 22:54:37,463 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:37,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:54:37,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:37,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:54:37,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:54:37,541 INFO L87 Difference]: Start difference. First operand has 1473 states, 707 states have (on average 2.267326732673267) internal successors, (1603), 1464 states have internal predecessors, (1603), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 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) [2021-11-12 22:54:37,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:37,694 INFO L93 Difference]: Finished difference Result 1455 states and 1540 transitions. [2021-11-12 22:54:37,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:54:37,708 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 [2021-11-12 22:54:37,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:37,745 INFO L225 Difference]: With dead ends: 1455 [2021-11-12 22:54:37,752 INFO L226 Difference]: Without dead ends: 1453 [2021-11-12 22:54:37,754 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 [2021-11-12 22:54:37,758 INFO L933 BasicCegarLoop]: 1540 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, 1540 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:37,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 12.34ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:54:37,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2021-11-12 22:54:37,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1453. [2021-11-12 22:54:37,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 698 states have (on average 2.157593123209169) internal successors, (1506), 1444 states have internal predecessors, (1506), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-12 22:54:37,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1538 transitions. [2021-11-12 22:54:37,896 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1538 transitions. Word has length 5 [2021-11-12 22:54:37,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:37,896 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 1538 transitions. [2021-11-12 22:54:37,896 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) [2021-11-12 22:54:37,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1538 transitions. [2021-11-12 22:54:37,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:54:37,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:37,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:54:37,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:38,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:38,114 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:54:38,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:38,126 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2021-11-12 22:54:38,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:38,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840507203] [2021-11-12 22:54:38,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:38,128 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:38,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:38,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:38,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:54:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:38,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:54:38,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:38,330 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 [2021-11-12 22:54:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:38,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:38,376 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:38,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840507203] [2021-11-12 22:54:38,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840507203] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:38,382 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:38,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:54:38,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370165756] [2021-11-12 22:54:38,383 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:38,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:54:38,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:38,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:54:38,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:54:38,385 INFO L87 Difference]: Start difference. First operand 1453 states and 1538 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) [2021-11-12 22:54:41,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:41,348 INFO L93 Difference]: Finished difference Result 1490 states and 1588 transitions. [2021-11-12 22:54:41,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:54:41,348 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 [2021-11-12 22:54:41,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:41,358 INFO L225 Difference]: With dead ends: 1490 [2021-11-12 22:54:41,358 INFO L226 Difference]: Without dead ends: 1490 [2021-11-12 22:54:41,359 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 [2021-11-12 22:54:41,362 INFO L933 BasicCegarLoop]: 810 mSDtfsCounter, 1159 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2380.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.81ms SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2844.77ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:41,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1175 Valid, 1015 Invalid, 936 Unknown, 0 Unchecked, 20.81ms Time], IncrementalHoareTripleChecker [105 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 2844.77ms Time] [2021-11-12 22:54:41,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2021-11-12 22:54:41,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1436. [2021-11-12 22:54:41,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 774 states have (on average 2.0) internal successors, (1548), 1427 states have internal predecessors, (1548), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-12 22:54:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1580 transitions. [2021-11-12 22:54:41,441 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1580 transitions. Word has length 5 [2021-11-12 22:54:41,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:41,441 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 1580 transitions. [2021-11-12 22:54:41,441 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) [2021-11-12 22:54:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1580 transitions. [2021-11-12 22:54:41,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:54:41,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:41,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:54:41,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 22:54:41,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:41,643 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:54:41,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:41,644 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2021-11-12 22:54:41,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:41,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950374412] [2021-11-12 22:54:41,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:41,645 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:41,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:41,646 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:41,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:54:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:41,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:54:41,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:41,827 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 [2021-11-12 22:54:41,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:41,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:41,930 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:41,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950374412] [2021-11-12 22:54:41,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950374412] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:41,931 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:41,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 22:54:41,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297389357] [2021-11-12 22:54:41,931 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:41,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:41,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:41,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:41,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:41,933 INFO L87 Difference]: Start difference. First operand 1436 states and 1580 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) [2021-11-12 22:54:47,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:47,724 INFO L93 Difference]: Finished difference Result 1790 states and 1955 transitions. [2021-11-12 22:54:47,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:47,725 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 [2021-11-12 22:54:47,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:47,734 INFO L225 Difference]: With dead ends: 1790 [2021-11-12 22:54:47,735 INFO L226 Difference]: Without dead ends: 1790 [2021-11-12 22:54:47,735 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 [2021-11-12 22:54:47,736 INFO L933 BasicCegarLoop]: 1141 mSDtfsCounter, 1119 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4991.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.96ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5697.87ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:47,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 1722 Invalid, 1054 Unknown, 0 Unchecked, 22.96ms Time], IncrementalHoareTripleChecker [28 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 5697.87ms Time] [2021-11-12 22:54:47,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2021-11-12 22:54:47,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1592. [2021-11-12 22:54:47,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 940 states have (on average 1.9723404255319148) internal successors, (1854), 1583 states have internal predecessors, (1854), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-12 22:54:47,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 1886 transitions. [2021-11-12 22:54:47,781 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 1886 transitions. Word has length 5 [2021-11-12 22:54:47,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:47,782 INFO L470 AbstractCegarLoop]: Abstraction has 1592 states and 1886 transitions. [2021-11-12 22:54:47,782 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) [2021-11-12 22:54:47,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 1886 transitions. [2021-11-12 22:54:47,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 22:54:47,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:47,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 22:54:47,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:47,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:47,988 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:54:47,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:47,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1157601995, now seen corresponding path program 1 times [2021-11-12 22:54:47,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:47,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211665634] [2021-11-12 22:54:47,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:47,990 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:47,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:47,991 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:47,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:54:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:48,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:54:48,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:48,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:48,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:48,145 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:48,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211665634] [2021-11-12 22:54:48,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211665634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:48,146 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:48,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:54:48,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116625695] [2021-11-12 22:54:48,146 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:48,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:48,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:48,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:48,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:48,148 INFO L87 Difference]: Start difference. First operand 1592 states and 1886 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) [2021-11-12 22:54:48,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:48,321 INFO L93 Difference]: Finished difference Result 2937 states and 3494 transitions. [2021-11-12 22:54:48,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:48,321 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 [2021-11-12 22:54:48,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:48,340 INFO L225 Difference]: With dead ends: 2937 [2021-11-12 22:54:48,340 INFO L226 Difference]: Without dead ends: 2937 [2021-11-12 22:54:48,340 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 [2021-11-12 22:54:48,343 INFO L933 BasicCegarLoop]: 1662 mSDtfsCounter, 2286 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.57ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.47ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:48,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2298 Valid, 3368 Invalid, 19 Unknown, 0 Unchecked, 21.57ms Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 92.47ms Time] [2021-11-12 22:54:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2021-11-12 22:54:48,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2408. [2021-11-12 22:54:48,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 1756 states have (on average 1.9646924829157175) internal successors, (3450), 2393 states have internal predecessors, (3450), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:54:48,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3494 transitions. [2021-11-12 22:54:48,424 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3494 transitions. Word has length 6 [2021-11-12 22:54:48,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:48,424 INFO L470 AbstractCegarLoop]: Abstraction has 2408 states and 3494 transitions. [2021-11-12 22:54:48,424 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) [2021-11-12 22:54:48,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3494 transitions. [2021-11-12 22:54:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 22:54:48,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:48,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:48,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:48,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:48,636 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:54:48,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:48,638 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2021-11-12 22:54:48,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:48,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497623120] [2021-11-12 22:54:48,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:48,639 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:48,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:48,640 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:48,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:54:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:48,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:54:48,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:48,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:48,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:48,870 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:48,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497623120] [2021-11-12 22:54:48,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497623120] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:48,871 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:48,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:54:48,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276029433] [2021-11-12 22:54:48,871 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:48,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:48,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:48,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:48,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:48,873 INFO L87 Difference]: Start difference. First operand 2408 states and 3494 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) [2021-11-12 22:54:48,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:48,936 INFO L93 Difference]: Finished difference Result 2348 states and 3408 transitions. [2021-11-12 22:54:48,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:54:48,937 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 [2021-11-12 22:54:48,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:48,954 INFO L225 Difference]: With dead ends: 2348 [2021-11-12 22:54:48,954 INFO L226 Difference]: Without dead ends: 2348 [2021-11-12 22:54:48,955 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 [2021-11-12 22:54:48,955 INFO L933 BasicCegarLoop]: 1387 mSDtfsCounter, 1347 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.30ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:48,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1363 Valid, 1453 Invalid, 14 Unknown, 0 Unchecked, 5.71ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 19.30ms Time] [2021-11-12 22:54:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2021-11-12 22:54:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 2348. [2021-11-12 22:54:49,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 1720 states have (on average 1.955813953488372) internal successors, (3364), 2333 states have internal predecessors, (3364), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:54:49,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3408 transitions. [2021-11-12 22:54:49,024 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3408 transitions. Word has length 11 [2021-11-12 22:54:49,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:49,024 INFO L470 AbstractCegarLoop]: Abstraction has 2348 states and 3408 transitions. [2021-11-12 22:54:49,025 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) [2021-11-12 22:54:49,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3408 transitions. [2021-11-12 22:54:49,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 22:54:49,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:49,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:49,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:49,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:49,237 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:54:49,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:49,238 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2021-11-12 22:54:49,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:49,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414731242] [2021-11-12 22:54:49,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:49,240 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:49,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:49,241 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:49,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:54:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:49,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:54:49,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:49,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:49,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:49,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:49,510 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:49,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414731242] [2021-11-12 22:54:49,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414731242] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:49,511 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:49,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-12 22:54:49,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614323529] [2021-11-12 22:54:49,511 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:49,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:54:49,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:49,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:54:49,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:49,513 INFO L87 Difference]: Start difference. First operand 2348 states and 3408 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) [2021-11-12 22:54:49,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:49,665 INFO L93 Difference]: Finished difference Result 2320 states and 3352 transitions. [2021-11-12 22:54:49,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:49,665 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 [2021-11-12 22:54:49,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:49,681 INFO L225 Difference]: With dead ends: 2320 [2021-11-12 22:54:49,681 INFO L226 Difference]: Without dead ends: 2320 [2021-11-12 22:54:49,682 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 [2021-11-12 22:54:49,683 INFO L933 BasicCegarLoop]: 1342 mSDtfsCounter, 2626 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.19ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.99ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:49,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2642 Valid, 2710 Invalid, 92 Unknown, 0 Unchecked, 12.19ms Time], IncrementalHoareTripleChecker [58 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 87.99ms Time] [2021-11-12 22:54:49,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2021-11-12 22:54:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2318. [2021-11-12 22:54:49,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1704 states have (on average 1.9401408450704225) internal successors, (3306), 2303 states have internal predecessors, (3306), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:54:49,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3350 transitions. [2021-11-12 22:54:49,759 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3350 transitions. Word has length 13 [2021-11-12 22:54:49,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:49,759 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 3350 transitions. [2021-11-12 22:54:49,759 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) [2021-11-12 22:54:49,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3350 transitions. [2021-11-12 22:54:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:54:49,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:49,761 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] [2021-11-12 22:54:49,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:49,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:49,973 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:54:49,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:49,973 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2021-11-12 22:54:49,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:49,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954428988] [2021-11-12 22:54:49,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:49,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:49,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:49,975 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:49,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:54:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:50,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:54:50,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:50,167 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 [2021-11-12 22:54:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:50,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:50,347 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:50,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954428988] [2021-11-12 22:54:50,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954428988] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:50,347 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:50,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:54:50,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554146440] [2021-11-12 22:54:50,348 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:50,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:50,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:50,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:50,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:50,350 INFO L87 Difference]: Start difference. First operand 2318 states and 3350 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) [2021-11-12 22:54:54,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:54,388 INFO L93 Difference]: Finished difference Result 3150 states and 4376 transitions. [2021-11-12 22:54:54,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:54:54,388 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 [2021-11-12 22:54:54,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:54,408 INFO L225 Difference]: With dead ends: 3150 [2021-11-12 22:54:54,408 INFO L226 Difference]: Without dead ends: 3150 [2021-11-12 22:54:54,408 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 [2021-11-12 22:54:54,409 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 2585 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3323.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.12ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3934.53ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:54,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 1340 Invalid, 1456 Unknown, 0 Unchecked, 21.12ms Time], IncrementalHoareTripleChecker [61 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 3934.53ms Time] [2021-11-12 22:54:54,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2021-11-12 22:54:54,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 2314. [2021-11-12 22:54:54,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 1704 states have (on average 1.9354460093896713) internal successors, (3298), 2299 states have internal predecessors, (3298), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:54:54,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3342 transitions. [2021-11-12 22:54:54,504 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3342 transitions. Word has length 27 [2021-11-12 22:54:54,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:54,504 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 3342 transitions. [2021-11-12 22:54:54,504 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) [2021-11-12 22:54:54,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3342 transitions. [2021-11-12 22:54:54,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:54:54,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:54,506 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] [2021-11-12 22:54:54,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:54,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:54,718 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:54:54,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:54,720 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2021-11-12 22:54:54,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:54,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257690298] [2021-11-12 22:54:54,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:54,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:54,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:54,722 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:54,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:54:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:54,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:54:54,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:54,907 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 [2021-11-12 22:54:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:55,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:55,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:54:55,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:55,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257690298] [2021-11-12 22:54:55,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257690298] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:55,576 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:55,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 22:54:55,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334226880] [2021-11-12 22:54:55,576 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:55,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:54:55,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:55,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:54:55,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:55,577 INFO L87 Difference]: Start difference. First operand 2314 states and 3342 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) [2021-11-12 22:55:06,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:06,690 INFO L93 Difference]: Finished difference Result 2787 states and 3741 transitions. [2021-11-12 22:55:06,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:55:06,691 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 [2021-11-12 22:55:06,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:06,706 INFO L225 Difference]: With dead ends: 2787 [2021-11-12 22:55:06,706 INFO L226 Difference]: Without dead ends: 2787 [2021-11-12 22:55:06,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:55:06,707 INFO L933 BasicCegarLoop]: 1009 mSDtfsCounter, 1283 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 3025 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9773.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.04ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10922.78ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:06,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 3278 Invalid, 3063 Unknown, 0 Unchecked, 19.04ms Time], IncrementalHoareTripleChecker [38 Valid, 3025 Invalid, 0 Unknown, 0 Unchecked, 10922.78ms Time] [2021-11-12 22:55:06,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2021-11-12 22:55:06,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2310. [2021-11-12 22:55:06,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2310 states, 1704 states have (on average 1.9307511737089202) internal successors, (3290), 2295 states have internal predecessors, (3290), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:55:06,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3334 transitions. [2021-11-12 22:55:06,772 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3334 transitions. Word has length 27 [2021-11-12 22:55:06,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:06,773 INFO L470 AbstractCegarLoop]: Abstraction has 2310 states and 3334 transitions. [2021-11-12 22:55:06,773 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) [2021-11-12 22:55:06,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3334 transitions. [2021-11-12 22:55:06,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-12 22:55:06,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:06,775 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] [2021-11-12 22:55:06,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:06,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:06,986 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:55:06,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:06,987 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2021-11-12 22:55:06,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:06,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341930815] [2021-11-12 22:55:06,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:06,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:06,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:06,990 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:07,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:55:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:07,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:55:07,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:07,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:07,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:07,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:07,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341930815] [2021-11-12 22:55:07,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341930815] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:07,471 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:07,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:55:07,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760101428] [2021-11-12 22:55:07,471 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:07,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:55:07,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:07,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:55:07,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:55:07,474 INFO L87 Difference]: Start difference. First operand 2310 states and 3334 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) [2021-11-12 22:55:07,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:07,528 INFO L93 Difference]: Finished difference Result 2298 states and 3314 transitions. [2021-11-12 22:55:07,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:07,528 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 [2021-11-12 22:55:07,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:07,541 INFO L225 Difference]: With dead ends: 2298 [2021-11-12 22:55:07,541 INFO L226 Difference]: Without dead ends: 2298 [2021-11-12 22:55:07,541 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 [2021-11-12 22:55:07,542 INFO L933 BasicCegarLoop]: 1336 mSDtfsCounter, 1294 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.34ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.93ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:07,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1310 Valid, 2688 Invalid, 43 Unknown, 0 Unchecked, 3.34ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 33.93ms Time] [2021-11-12 22:55:07,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2021-11-12 22:55:07,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 2298. [2021-11-12 22:55:07,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 1692 states have (on average 1.9326241134751774) internal successors, (3270), 2283 states have internal predecessors, (3270), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:55:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 3314 transitions. [2021-11-12 22:55:07,593 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 3314 transitions. Word has length 42 [2021-11-12 22:55:07,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:07,595 INFO L470 AbstractCegarLoop]: Abstraction has 2298 states and 3314 transitions. [2021-11-12 22:55:07,596 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) [2021-11-12 22:55:07,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 3314 transitions. [2021-11-12 22:55:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-12 22:55:07,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:07,601 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] [2021-11-12 22:55:07,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:07,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:07,812 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:55:07,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:07,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2021-11-12 22:55:07,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:07,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401884218] [2021-11-12 22:55:07,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:07,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:07,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:07,814 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:07,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:55:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:08,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:55:08,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:08,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:08,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:08,722 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:08,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401884218] [2021-11-12 22:55:08,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401884218] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:08,722 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:08,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:55:08,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624422898] [2021-11-12 22:55:08,723 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:08,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:55:08,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:08,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:55:08,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:55:08,724 INFO L87 Difference]: Start difference. First operand 2298 states and 3314 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) [2021-11-12 22:55:08,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:08,914 INFO L93 Difference]: Finished difference Result 2309 states and 3163 transitions. [2021-11-12 22:55:08,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:55:08,915 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 [2021-11-12 22:55:08,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:08,925 INFO L225 Difference]: With dead ends: 2309 [2021-11-12 22:55:08,925 INFO L226 Difference]: Without dead ends: 2309 [2021-11-12 22:55:08,926 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 [2021-11-12 22:55:08,926 INFO L933 BasicCegarLoop]: 1415 mSDtfsCounter, 269 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.59ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 176.96ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:08,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 2626 Invalid, 97 Unknown, 0 Unchecked, 2.59ms Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 176.96ms Time] [2021-11-12 22:55:08,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2021-11-12 22:55:08,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2114. [2021-11-12 22:55:08,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2114 states, 1508 states have (on average 1.9330238726790452) internal successors, (2915), 2099 states have internal predecessors, (2915), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:55:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 2959 transitions. [2021-11-12 22:55:08,976 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 2959 transitions. Word has length 50 [2021-11-12 22:55:08,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:08,976 INFO L470 AbstractCegarLoop]: Abstraction has 2114 states and 2959 transitions. [2021-11-12 22:55:08,976 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) [2021-11-12 22:55:08,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 2959 transitions. [2021-11-12 22:55:08,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-12 22:55:08,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:08,978 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] [2021-11-12 22:55:08,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:09,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:09,190 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:55:09,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:09,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2021-11-12 22:55:09,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:09,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810524597] [2021-11-12 22:55:09,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:09,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:09,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:09,192 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:09,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:55:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:09,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:55:09,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:09,531 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 [2021-11-12 22:55:09,539 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 [2021-11-12 22:55:10,164 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-12 22:55:10,164 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 26 treesize of output 28 [2021-11-12 22:55:10,173 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-12 22:55:10,173 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 25 treesize of output 21 [2021-11-12 22:55:10,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:10,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:14,799 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:14,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810524597] [2021-11-12 22:55:14,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810524597] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:14,800 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:14,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 22:55:14,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114311937] [2021-11-12 22:55:14,800 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:14,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:55:14,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:14,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:55:14,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-12 22:55:14,801 INFO L87 Difference]: Start difference. First operand 2114 states and 2959 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) [2021-11-12 22:55:23,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:23,511 INFO L93 Difference]: Finished difference Result 2820 states and 3599 transitions. [2021-11-12 22:55:23,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:55:23,514 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 [2021-11-12 22:55:23,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:23,530 INFO L225 Difference]: With dead ends: 2820 [2021-11-12 22:55:23,530 INFO L226 Difference]: Without dead ends: 2820 [2021-11-12 22:55:23,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-12 22:55:23,543 INFO L933 BasicCegarLoop]: 909 mSDtfsCounter, 1855 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7358.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.67ms SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1570 IncrementalHoareTripleChecker+Unchecked, 8580.99ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:23,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1862 Valid, 1996 Invalid, 3374 Unknown, 0 Unchecked, 23.67ms Time], IncrementalHoareTripleChecker [99 Valid, 1705 Invalid, 0 Unknown, 1570 Unchecked, 8580.99ms Time] [2021-11-12 22:55:23,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2021-11-12 22:55:23,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2209. [2021-11-12 22:55:23,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1635 states have (on average 1.8862385321100918) internal successors, (3084), 2191 states have internal predecessors, (3084), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 22:55:23,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3134 transitions. [2021-11-12 22:55:23,611 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3134 transitions. Word has length 53 [2021-11-12 22:55:23,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:23,611 INFO L470 AbstractCegarLoop]: Abstraction has 2209 states and 3134 transitions. [2021-11-12 22:55:23,611 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) [2021-11-12 22:55:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3134 transitions. [2021-11-12 22:55:23,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 22:55:23,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:23,613 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] [2021-11-12 22:55:23,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:23,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:23,827 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:55:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:23,827 INFO L85 PathProgramCache]: Analyzing trace with hash -61627503, now seen corresponding path program 1 times [2021-11-12 22:55:23,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:23,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434527893] [2021-11-12 22:55:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:23,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:23,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:23,829 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:23,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:55:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:24,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:55:24,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:24,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:24,356 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 [2021-11-12 22:55:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:24,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:24,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434527893] [2021-11-12 22:55:24,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434527893] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:24,621 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:24,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 22:55:24,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432966577] [2021-11-12 22:55:24,622 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:24,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:55:24,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:24,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:55:24,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:24,623 INFO L87 Difference]: Start difference. First operand 2209 states and 3134 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) [2021-11-12 22:55:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:27,680 INFO L93 Difference]: Finished difference Result 2207 states and 3130 transitions. [2021-11-12 22:55:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:27,681 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 [2021-11-12 22:55:27,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:27,692 INFO L225 Difference]: With dead ends: 2207 [2021-11-12 22:55:27,692 INFO L226 Difference]: Without dead ends: 2207 [2021-11-12 22:55:27,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:27,693 INFO L933 BasicCegarLoop]: 775 mSDtfsCounter, 2930 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2581.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2936 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.46ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3015.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:27,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2936 Valid, 1462 Invalid, 755 Unknown, 0 Unchecked, 10.46ms Time], IncrementalHoareTripleChecker [41 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 3015.37ms Time] [2021-11-12 22:55:27,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2021-11-12 22:55:27,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2021-11-12 22:55:27,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1635 states have (on average 1.8837920489296636) internal successors, (3080), 2189 states have internal predecessors, (3080), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 22:55:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3130 transitions. [2021-11-12 22:55:27,753 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3130 transitions. Word has length 55 [2021-11-12 22:55:27,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:27,754 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 3130 transitions. [2021-11-12 22:55:27,754 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) [2021-11-12 22:55:27,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3130 transitions. [2021-11-12 22:55:27,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-12 22:55:27,755 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:27,755 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] [2021-11-12 22:55:27,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:27,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:27,968 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:55:27,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:27,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2021-11-12 22:55:27,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:27,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951735327] [2021-11-12 22:55:27,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:27,969 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:27,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:27,970 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:27,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:55:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:28,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:28,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:28,292 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 [2021-11-12 22:55:28,309 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 [2021-11-12 22:55:28,351 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 [2021-11-12 22:55:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:28,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:28,488 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:28,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951735327] [2021-11-12 22:55:28,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951735327] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:28,489 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:28,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:55:28,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105902931] [2021-11-12 22:55:28,489 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:28,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:55:28,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:28,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:55:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:28,491 INFO L87 Difference]: Start difference. First operand 2207 states and 3130 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) [2021-11-12 22:55:32,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:32,744 INFO L93 Difference]: Finished difference Result 2206 states and 3128 transitions. [2021-11-12 22:55:32,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:55:32,745 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 [2021-11-12 22:55:32,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:32,768 INFO L225 Difference]: With dead ends: 2206 [2021-11-12 22:55:32,769 INFO L226 Difference]: Without dead ends: 2206 [2021-11-12 22:55:32,769 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 [2021-11-12 22:55:32,770 INFO L933 BasicCegarLoop]: 1306 mSDtfsCounter, 4 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3574.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.22ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4150.23ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:32,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3324 Invalid, 1906 Unknown, 0 Unchecked, 14.22ms Time], IncrementalHoareTripleChecker [1 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 4150.23ms Time] [2021-11-12 22:55:32,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2021-11-12 22:55:32,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2206. [2021-11-12 22:55:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1635 states have (on average 1.8825688073394495) internal successors, (3078), 2188 states have internal predecessors, (3078), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 22:55:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3128 transitions. [2021-11-12 22:55:32,835 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3128 transitions. Word has length 58 [2021-11-12 22:55:32,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:32,835 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 3128 transitions. [2021-11-12 22:55:32,835 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) [2021-11-12 22:55:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3128 transitions. [2021-11-12 22:55:32,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-12 22:55:32,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:32,836 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] [2021-11-12 22:55:32,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:33,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:33,057 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:55:33,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:33,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2021-11-12 22:55:33,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:33,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215439796] [2021-11-12 22:55:33,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:33,059 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:33,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:33,060 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:33,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:55:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:33,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:55:33,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:33,351 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 [2021-11-12 22:55:33,385 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 [2021-11-12 22:55:33,393 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 [2021-11-12 22:55:33,451 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 [2021-11-12 22:55:33,455 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 [2021-11-12 22:55:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:33,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:33,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:33,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:33,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215439796] [2021-11-12 22:55:33,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215439796] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:33,795 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:33,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 22:55:33,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571533651] [2021-11-12 22:55:33,795 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:33,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:55:33,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:33,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:55:33,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:55:33,797 INFO L87 Difference]: Start difference. First operand 2206 states and 3128 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) [2021-11-12 22:55:45,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:45,616 INFO L93 Difference]: Finished difference Result 2205 states and 3126 transitions. [2021-11-12 22:55:45,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:55:45,617 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 [2021-11-12 22:55:45,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:45,622 INFO L225 Difference]: With dead ends: 2205 [2021-11-12 22:55:45,622 INFO L226 Difference]: Without dead ends: 2205 [2021-11-12 22:55:45,623 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 [2021-11-12 22:55:45,623 INFO L933 BasicCegarLoop]: 1306 mSDtfsCounter, 4 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10582.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3263 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.53ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11697.38ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:45,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3263 Invalid, 1966 Unknown, 0 Unchecked, 15.53ms Time], IncrementalHoareTripleChecker [2 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 11697.38ms Time] [2021-11-12 22:55:45,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2021-11-12 22:55:45,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2205. [2021-11-12 22:55:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1633 states have (on average 1.883649724433558) internal successors, (3076), 2187 states have internal predecessors, (3076), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 22:55:45,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3126 transitions. [2021-11-12 22:55:45,660 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3126 transitions. Word has length 58 [2021-11-12 22:55:45,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:45,661 INFO L470 AbstractCegarLoop]: Abstraction has 2205 states and 3126 transitions. [2021-11-12 22:55:45,661 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) [2021-11-12 22:55:45,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3126 transitions. [2021-11-12 22:55:45,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-12 22:55:45,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:45,662 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] [2021-11-12 22:55:45,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:45,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:45,875 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:55:45,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:45,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1427434238, now seen corresponding path program 1 times [2021-11-12 22:55:45,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:45,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837227108] [2021-11-12 22:55:45,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:45,877 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:45,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:45,878 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:45,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:55:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:46,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:55:46,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:46,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:46,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:46,493 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:46,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837227108] [2021-11-12 22:55:46,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837227108] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:46,494 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:46,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:55:46,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654466926] [2021-11-12 22:55:46,494 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:46,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:55:46,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:46,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:55:46,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:46,496 INFO L87 Difference]: Start difference. First operand 2205 states and 3126 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) [2021-11-12 22:55:46,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:46,627 INFO L93 Difference]: Finished difference Result 2215 states and 3143 transitions. [2021-11-12 22:55:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:55:46,635 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 [2021-11-12 22:55:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:46,641 INFO L225 Difference]: With dead ends: 2215 [2021-11-12 22:55:46,641 INFO L226 Difference]: Without dead ends: 2215 [2021-11-12 22:55:46,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:55:46,642 INFO L933 BasicCegarLoop]: 1304 mSDtfsCounter, 7 mSDsluCounter, 5190 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6494 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.64ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.40ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:46,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6494 Invalid, 62 Unknown, 0 Unchecked, 4.64ms Time], IncrementalHoareTripleChecker [10 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 95.40ms Time] [2021-11-12 22:55:46,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2021-11-12 22:55:46,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2215. [2021-11-12 22:55:46,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1641 states have (on average 1.881779402803169) internal successors, (3088), 2196 states have internal predecessors, (3088), 25 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (30), 16 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-12 22:55:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 3143 transitions. [2021-11-12 22:55:46,686 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 3143 transitions. Word has length 66 [2021-11-12 22:55:46,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:46,686 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 3143 transitions. [2021-11-12 22:55:46,686 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) [2021-11-12 22:55:46,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 3143 transitions. [2021-11-12 22:55:46,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-12 22:55:46,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:46,687 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] [2021-11-12 22:55:46,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:46,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:46,908 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:55:46,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:46,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1761910302, now seen corresponding path program 1 times [2021-11-12 22:55:46,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:46,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437521860] [2021-11-12 22:55:46,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:46,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:46,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:46,911 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:46,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 22:55:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:47,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:55:47,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:47,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:47,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:47,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:47,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437521860] [2021-11-12 22:55:47,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437521860] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:47,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1374721803] [2021-11-12 22:55:47,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:47,690 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:47,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:55:47,691 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:55:47,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-12 22:55:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:48,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:55:48,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:48,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:48,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:48,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:48,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1374721803] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:48,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574746059] [2021-11-12 22:55:48,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:48,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:55:48,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:55:48,285 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:55:48,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-12 22:55:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:48,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:55:48,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:48,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:48,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:48,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574746059] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:48,821 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:55:48,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-12 22:55:48,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925080119] [2021-11-12 22:55:48,822 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:55:48,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:55:48,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:48,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:55:48,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:55:48,824 INFO L87 Difference]: Start difference. First operand 2215 states and 3143 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) [2021-11-12 22:55:49,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:49,388 INFO L93 Difference]: Finished difference Result 2229 states and 3164 transitions. [2021-11-12 22:55:49,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 22:55:49,389 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 [2021-11-12 22:55:49,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:49,395 INFO L225 Difference]: With dead ends: 2229 [2021-11-12 22:55:49,396 INFO L226 Difference]: Without dead ends: 2223 [2021-11-12 22:55:49,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:55:49,397 INFO L933 BasicCegarLoop]: 1304 mSDtfsCounter, 34 mSDsluCounter, 6491 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 252.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 7795 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.80ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 295.44ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:49,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 7795 Invalid, 189 Unknown, 0 Unchecked, 6.80ms Time], IncrementalHoareTripleChecker [44 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 295.44ms Time] [2021-11-12 22:55:49,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2021-11-12 22:55:49,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2221. [2021-11-12 22:55:49,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 1647 states have (on average 1.8791742562234366) internal successors, (3095), 2202 states have internal predecessors, (3095), 25 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (30), 16 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-12 22:55:49,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3150 transitions. [2021-11-12 22:55:49,439 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3150 transitions. Word has length 68 [2021-11-12 22:55:49,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:49,439 INFO L470 AbstractCegarLoop]: Abstraction has 2221 states and 3150 transitions. [2021-11-12 22:55:49,439 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) [2021-11-12 22:55:49,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3150 transitions. [2021-11-12 22:55:49,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-12 22:55:49,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:49,440 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] [2021-11-12 22:55:49,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:49,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:49,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:50,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:50,060 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:55:50,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:50,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1602933666, now seen corresponding path program 2 times [2021-11-12 22:55:50,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:50,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578888483] [2021-11-12 22:55:50,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:55:50,062 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:50,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:50,063 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:50,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 22:55:50,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:55:50,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:55:50,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 22:55:50,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:50,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:51,475 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:51,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578888483] [2021-11-12 22:55:51,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578888483] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:51,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1251106332] [2021-11-12 22:55:51,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:55:51,476 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:51,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:55:51,477 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:55:51,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-12 22:55:52,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:55:52,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:55:52,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 22:55:52,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:52,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:55:53,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1251106332] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:53,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693379661] [2021-11-12 22:55:53,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:55:53,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:55:53,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:55:53,038 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:55:53,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-12 22:56:02,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:56:02,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:56:02,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:56:02,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:02,959 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 [2021-11-12 22:56:03,163 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 22:56:03,166 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 14 treesize of output 14 [2021-11-12 22:56:03,215 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 [2021-11-12 22:57:51,060 WARN L227 SmtUtils]: Spent 22.02s 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) [2021-11-12 22:57:51,060 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-12 22:57:51,061 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 [2021-11-12 22:57:51,918 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-12 22:57:51,921 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 [2021-11-12 22:57:52,079 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:52,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:53,797 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-12 22:57:53,797 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 60 treesize of output 59 [2021-11-12 22:59:14,799 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_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))))) is different from false [2021-11-12 22:59:17,101 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))) (_ bv1 1)) (_ bv0 1)) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |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|))))))) is different from true [2021-11-12 22:59:19,399 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |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|))))))) is different from true [2021-11-12 22:59:21,932 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_118|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |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|))))))) is different from true [2021-11-12 23:00:40,130 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-12 23:00:40,130 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 113 treesize of output 112 [2021-11-12 23:00:43,841 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$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~loopctr322|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_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|))))) is different from false [2021-11-12 23:00:45,850 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$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~loopctr322|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_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|))))) is different from true [2021-11-12 23:00:47,996 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (store |c_#memory_$Pointer$.base| .cse0 (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| .cse0) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse0)))) is different from false [2021-11-12 23:01:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 3 times theorem prover too weak. 0 trivial. 18 not checked. [2021-11-12 23:01:05,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693379661] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:01:05,598 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:01:05,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-12 23:01:05,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560781565] [2021-11-12 23:01:05,599 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:01:05,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-12 23:01:05,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:05,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-12 23:01:05,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=1227, Unknown=118, NotChecked=474, Total=1980 [2021-11-12 23:01:05,601 INFO L87 Difference]: Start difference. First operand 2221 states and 3150 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) [2021-11-12 23:01:36,207 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-12 23:02:34,780 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_118|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr322|)) is different from false [2021-11-12 23:03:01,934 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr322|) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |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|)))))))) is different from false [2021-11-12 23:03:03,957 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr322|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 23:03:05,969 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))))) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr322|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 23:03:07,990 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr322|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr322|) |c_#Ultimate.C_memset_#amount|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_87| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 23:03:10,003 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr322|) |c_#Ultimate.C_memset_#amount|) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr322|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 23:03:12,013 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (not (bvult (_ bv6 32) |c_#Ultimate.C_memset_#amount|)) (bvult (_ bv5 32) |c_#Ultimate.C_memset_#amount|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 23:04:26,845 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_118|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |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|))))))) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr322|)) is different from false [2021-11-12 23:04:28,863 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr322|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |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|)))))))) is different from false [2021-11-12 23:04:30,885 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr322|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 23:04:32,904 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr322|) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr322|) |c_#Ultimate.C_memset_#amount|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_87| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 23:04:34,923 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr322|) |c_#Ultimate.C_memset_#amount|) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr322|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 23:05:52,171 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr322|)) is different from false [2021-11-12 23:07:55,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:55,475 INFO L93 Difference]: Finished difference Result 2474 states and 3467 transitions. [2021-11-12 23:07:55,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-12 23:07:55,477 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 72 [2021-11-12 23:07:55,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:55,483 INFO L225 Difference]: With dead ends: 2474 [2021-11-12 23:07:55,483 INFO L226 Difference]: Without dead ends: 2471 [2021-11-12 23:07:55,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 20 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 656.0s TimeCoverageRelationStatistics Valid=566, Invalid=3390, Unknown=284, NotChecked=2900, Total=7140 [2021-11-12 23:07:55,486 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 1002 mSDsluCounter, 15613 mSDsCounter, 0 mSdLazyCounter, 7484 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21540.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 16369 SdHoareTripleChecker+Invalid, 23295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 86.30ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 7484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15738 IncrementalHoareTripleChecker+Unchecked, 23676.32ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:55,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 16369 Invalid, 23295 Unknown, 0 Unchecked, 86.30ms Time], IncrementalHoareTripleChecker [73 Valid, 7484 Invalid, 0 Unknown, 15738 Unchecked, 23676.32ms Time] [2021-11-12 23:07:55,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2021-11-12 23:07:55,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2234. [2021-11-12 23:07:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 1659 states have (on average 1.8746232670283303) internal successors, (3110), 2214 states have internal predecessors, (3110), 25 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (33), 16 states have call predecessors, (33), 25 states have call successors, (33) [2021-11-12 23:07:55,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 3168 transitions. [2021-11-12 23:07:55,555 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 3168 transitions. Word has length 72 [2021-11-12 23:07:55,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:55,555 INFO L470 AbstractCegarLoop]: Abstraction has 2234 states and 3168 transitions. [2021-11-12 23:07:55,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-12 23:07:55,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 3168 transitions. [2021-11-12 23:07:55,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-12 23:07:55,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:55,560 INFO L514 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:55,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:55,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:56,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:56,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:56,176 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 23:07:56,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:56,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1906552009, now seen corresponding path program 3 times [2021-11-12 23:07:56,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:56,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713202109] [2021-11-12 23:07:56,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:07:56,177 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:56,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:56,184 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:56,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-12 23:07:56,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-12 23:07:56,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:07:56,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:07:56,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:57,172 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:07:57,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:58,169 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:07:58,170 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:58,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713202109] [2021-11-12 23:07:58,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713202109] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:07:58,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [696369345] [2021-11-12 23:07:58,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:07:58,170 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:07:58,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:07:58,181 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:07:58,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-11-12 23:08:00,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-12 23:08:00,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:08:00,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:08:00,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:08:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:08:00,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:08:00,954 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:08:00,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [696369345] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:08:00,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761648734] [2021-11-12 23:08:00,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:08:00,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:08:00,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:08:00,968 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:08:00,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93208ec7-70a4-4c9c-8cb1-ca724fe80976/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process