./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/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 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:00:48,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:00:48,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:00:48,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:00:48,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:00:48,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:00:48,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:00:48,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:00:48,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:00:48,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:00:48,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:00:48,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:00:48,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:00:48,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:00:48,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:00:48,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:00:48,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:00:48,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:00:48,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:00:48,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:00:48,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:00:48,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:00:48,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:00:48,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:00:48,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:00:48,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:00:48,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:00:48,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:00:48,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:00:48,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:00:48,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:00:48,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:00:48,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:00:48,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:00:48,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:00:48,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:00:48,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:00:48,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:00:48,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:00:48,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:00:48,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:00:48,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-12 23:00:48,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:00:48,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:00:48,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:00:48,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:00:48,347 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:00:48,347 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:00:48,347 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:00:48,348 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:00:48,348 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:00:48,348 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:00:48,350 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:00:48,350 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:00:48,350 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:00:48,351 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:00:48,351 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:00:48,352 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:00:48,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 23:00:48,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 23:00:48,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:00:48,354 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:00:48,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 23:00:48,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:00:48,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:00:48,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:00:48,355 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 23:00:48,356 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 23:00:48,358 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 23:00:48,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:00:48,358 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:00:48,359 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:00:48,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:00:48,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:00:48,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:00:48,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:00:48,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:00:48,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:00:48,362 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:00:48,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:00:48,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:00:48,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:00:48,363 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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2021-11-12 23:00:48,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:00:48,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:00:48,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:00:48,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:00:48,762 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:00:48,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2021-11-12 23:00:48,848 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/data/d84f70760/2e936f64c8184cb583503752a4083d2d/FLAG96a486791 [2021-11-12 23:00:49,596 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:00:49,597 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2021-11-12 23:00:49,634 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/data/d84f70760/2e936f64c8184cb583503752a4083d2d/FLAG96a486791 [2021-11-12 23:00:49,737 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/data/d84f70760/2e936f64c8184cb583503752a4083d2d [2021-11-12 23:00:49,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:00:49,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:00:49,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:00:49,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:00:49,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:00:49,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:00:49" (1/1) ... [2021-11-12 23:00:49,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23dc8af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:49, skipping insertion in model container [2021-11-12 23:00:49,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:00:49" (1/1) ... [2021-11-12 23:00:49,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:00:49,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:00:50,491 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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[33021,33034] [2021-11-12 23:00:50,728 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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[49681,49694] [2021-11-12 23:00:50,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:00:50,791 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 23:00:50,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f16b096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:50, skipping insertion in model container [2021-11-12 23:00:50,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:00:50,793 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:00:50,796 INFO L158 Benchmark]: Toolchain (without parser) took 1051.44ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 51.1MB in the beginning and 77.1MB in the end (delta: -26.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:00:50,797 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory was 69.9MB in the beginning and 69.9MB in the end (delta: 90.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:00:50,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1045.76ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 50.9MB in the beginning and 77.1MB in the end (delta: -26.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:00:50,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory was 69.9MB in the beginning and 69.9MB in the end (delta: 90.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1045.76ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 50.9MB in the beginning and 77.1MB in the end (delta: -26.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/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 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:00:53,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:00:53,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:00:53,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:00:53,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:00:53,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:00:53,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:00:53,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:00:53,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:00:53,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:00:53,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:00:53,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:00:53,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:00:53,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:00:53,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:00:53,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:00:53,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:00:53,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:00:53,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:00:53,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:00:53,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:00:53,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:00:53,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:00:53,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:00:53,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:00:53,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:00:53,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:00:53,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:00:53,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:00:53,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:00:53,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:00:53,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:00:53,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:00:53,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:00:53,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:00:53,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:00:53,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:00:53,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:00:53,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:00:53,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:00:53,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:00:53,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-12 23:00:53,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:00:53,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:00:53,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:00:53,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:00:53,594 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:00:53,595 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:00:53,595 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:00:53,595 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:00:53,595 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:00:53,596 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:00:53,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 23:00:53,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 23:00:53,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:00:53,597 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:00:53,598 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 23:00:53,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:00:53,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:00:53,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:00:53,599 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 23:00:53,599 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 23:00:53,599 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 23:00:53,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:00:53,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:00:53,600 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:00:53,600 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:00:53,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:00:53,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:00:53,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:00:53,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:00:53,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:00:53,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:00:53,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:00:53,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:00:53,602 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:00:53,603 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:00:53,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:00:53,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:00:53,603 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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2021-11-12 23:00:54,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:00:54,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:00:54,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:00:54,108 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:00:54,108 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:00:54,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2021-11-12 23:00:54,189 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/data/9e6a8d58f/0991d5a56d38439e96234d938b11f902/FLAG1c59739ae [2021-11-12 23:00:54,884 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:00:54,885 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2021-11-12 23:00:54,932 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/data/9e6a8d58f/0991d5a56d38439e96234d938b11f902/FLAG1c59739ae [2021-11-12 23:00:55,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/data/9e6a8d58f/0991d5a56d38439e96234d938b11f902 [2021-11-12 23:00:55,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:00:55,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:00:55,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:00:55,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:00:55,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:00:55,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:00:55" (1/1) ... [2021-11-12 23:00:55,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731bf79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:55, skipping insertion in model container [2021-11-12 23:00:55,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:00:55" (1/1) ... [2021-11-12 23:00:55,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:00:55,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:00:55,762 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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[33021,33034] [2021-11-12 23:00:55,942 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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[49681,49694] [2021-11-12 23:00:55,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:00:56,008 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:00:56,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:00:56,067 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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[33021,33034] [2021-11-12 23:00:56,189 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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[49681,49694] [2021-11-12 23:00:56,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:00:56,236 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:00:56,298 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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[33021,33034] [2021-11-12 23:00:56,420 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_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[49681,49694] [2021-11-12 23:00:56,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:00:56,480 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:00:56,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56 WrapperNode [2021-11-12 23:00:56,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:00:56,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:00:56,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:00:56,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:00:56,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (1/1) ... [2021-11-12 23:00:56,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (1/1) ... [2021-11-12 23:00:56,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:00:56,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:00:56,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:00:56,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:00:56,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (1/1) ... [2021-11-12 23:00:56,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (1/1) ... [2021-11-12 23:00:56,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (1/1) ... [2021-11-12 23:00:56,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (1/1) ... [2021-11-12 23:00:56,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (1/1) ... [2021-11-12 23:00:56,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (1/1) ... [2021-11-12 23:00:56,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (1/1) ... [2021-11-12 23:00:56,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:00:56,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:00:56,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:00:56,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:00:56,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (1/1) ... [2021-11-12 23:00:56,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:00:56,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:00:56,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:00:56,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:00:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:00:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:00:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:00:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:00:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:00:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:00:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:00:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:00:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:00:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-12 23:00:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:00:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:00:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:00:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:00:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:00:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:00:57,377 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-12 23:01:06,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:01:06,421 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-11-12 23:01:06,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:01:06 BoogieIcfgContainer [2021-11-12 23:01:06,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:01:06,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:01:06,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:01:06,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:01:06,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:00:55" (1/3) ... [2021-11-12 23:01:06,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb438ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:01:06, skipping insertion in model container [2021-11-12 23:01:06,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:00:56" (2/3) ... [2021-11-12 23:01:06,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb438ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:01:06, skipping insertion in model container [2021-11-12 23:01:06,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:01:06" (3/3) ... [2021-11-12 23:01:06,437 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-3.i [2021-11-12 23:01:06,444 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:01:06,445 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 932 error locations. [2021-11-12 23:01:06,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:01:06,509 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 23:01:06,509 INFO L340 AbstractCegarLoop]: Starting to check reachability of 932 error locations. [2021-11-12 23:01:06,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 1833 states, 893 states have (on average 2.2642777155655094) internal successors, (2022), 1824 states have internal predecessors, (2022), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-12 23:01:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 23:01:06,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:06,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 23:01:06,578 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:06,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:06,585 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2021-11-12 23:01:06,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:06,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304693225] [2021-11-12 23:01:06,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:06,601 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:06,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:06,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:06,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:01:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:06,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:01:06,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:06,955 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 23:01:06,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:06,981 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 23:01:06,982 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:06,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304693225] [2021-11-12 23:01:06,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304693225] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:06,984 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:06,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:01:06,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871447128] [2021-11-12 23:01:06,987 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:06,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:01:06,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:07,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:01:07,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:01:07,078 INFO L87 Difference]: Start difference. First operand has 1833 states, 893 states have (on average 2.2642777155655094) internal successors, (2022), 1824 states have internal predecessors, (2022), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:01:07,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:07,343 INFO L93 Difference]: Finished difference Result 1815 states and 1917 transitions. [2021-11-12 23:01:07,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:01:07,349 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 23:01:07,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:07,391 INFO L225 Difference]: With dead ends: 1815 [2021-11-12 23:01:07,391 INFO L226 Difference]: Without dead ends: 1813 [2021-11-12 23:01:07,393 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 23:01:07,398 INFO L933 BasicCegarLoop]: 1917 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, 1917 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:07,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 34.24ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:01:07,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2021-11-12 23:01:07,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1813. [2021-11-12 23:01:07,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 884 states have (on average 2.1414027149321266) internal successors, (1893), 1804 states have internal predecessors, (1893), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-12 23:01:07,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 1915 transitions. [2021-11-12 23:01:07,552 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 1915 transitions. Word has length 5 [2021-11-12 23:01:07,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:07,555 INFO L470 AbstractCegarLoop]: Abstraction has 1813 states and 1915 transitions. [2021-11-12 23:01:07,555 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 23:01:07,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 1915 transitions. [2021-11-12 23:01:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 23:01:07,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:07,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 23:01:07,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:07,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:07,771 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:07,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:07,775 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2021-11-12 23:01:07,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:07,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119561100] [2021-11-12 23:01:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:07,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:07,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:07,780 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:07,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:01:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:07,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:01:07,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:08,050 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 23:01:08,074 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 23:01:08,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:08,107 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 23:01:08,107 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:08,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119561100] [2021-11-12 23:01:08,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119561100] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:08,108 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:08,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:01:08,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550747196] [2021-11-12 23:01:08,109 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:08,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:01:08,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:08,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:01:08,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:01:08,112 INFO L87 Difference]: Start difference. First operand 1813 states and 1915 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 23:01:12,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:12,255 INFO L93 Difference]: Finished difference Result 2069 states and 2214 transitions. [2021-11-12 23:01:12,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:01:12,257 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 23:01:12,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:12,315 INFO L225 Difference]: With dead ends: 2069 [2021-11-12 23:01:12,315 INFO L226 Difference]: Without dead ends: 2069 [2021-11-12 23:01:12,315 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 23:01:12,317 INFO L933 BasicCegarLoop]: 1354 mSDtfsCounter, 1369 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3383.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.35ms SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4031.28ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:12,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 1809 Invalid, 1187 Unknown, 0 Unchecked, 27.35ms Time], IncrementalHoareTripleChecker [102 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 4031.28ms Time] [2021-11-12 23:01:12,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2021-11-12 23:01:12,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 1798. [2021-11-12 23:01:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 960 states have (on average 2.017708333333333) internal successors, (1937), 1789 states have internal predecessors, (1937), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-12 23:01:12,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 1959 transitions. [2021-11-12 23:01:12,377 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 1959 transitions. Word has length 5 [2021-11-12 23:01:12,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:12,378 INFO L470 AbstractCegarLoop]: Abstraction has 1798 states and 1959 transitions. [2021-11-12 23:01:12,378 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 23:01:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 1959 transitions. [2021-11-12 23:01:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 23:01:12,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:12,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 23:01:12,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:12,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:12,593 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:12,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:12,594 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2021-11-12 23:01:12,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:12,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404577402] [2021-11-12 23:01:12,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:12,596 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:12,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:12,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:12,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:01:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:12,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:01:12,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:12,839 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 23:01:12,873 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 23:01:12,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:12,967 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 23:01:12,967 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:12,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404577402] [2021-11-12 23:01:12,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404577402] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:12,968 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:12,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 23:01:12,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126153842] [2021-11-12 23:01:12,968 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:12,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:12,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:12,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:12,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:12,970 INFO L87 Difference]: Start difference. First operand 1798 states and 1959 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 23:01:22,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:22,663 INFO L93 Difference]: Finished difference Result 2369 states and 2581 transitions. [2021-11-12 23:01:22,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:01:22,665 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 23:01:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:22,680 INFO L225 Difference]: With dead ends: 2369 [2021-11-12 23:01:22,680 INFO L226 Difference]: Without dead ends: 2369 [2021-11-12 23:01:22,681 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 23:01:22,682 INFO L933 BasicCegarLoop]: 1685 mSDtfsCounter, 825 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8492.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.99ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9562.45ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:22,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 3271 Invalid, 2067 Unknown, 0 Unchecked, 25.99ms Time], IncrementalHoareTripleChecker [27 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 9562.45ms Time] [2021-11-12 23:01:22,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2369 states. [2021-11-12 23:01:22,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2369 to 1954. [2021-11-12 23:01:22,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1126 states have (on average 1.992007104795737) internal successors, (2243), 1945 states have internal predecessors, (2243), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-12 23:01:22,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2265 transitions. [2021-11-12 23:01:22,743 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2265 transitions. Word has length 5 [2021-11-12 23:01:22,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:22,743 INFO L470 AbstractCegarLoop]: Abstraction has 1954 states and 2265 transitions. [2021-11-12 23:01:22,744 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 23:01:22,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2265 transitions. [2021-11-12 23:01:22,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:01:22,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:22,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:01:22,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:22,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:22,961 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:22,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:22,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1157601995, now seen corresponding path program 1 times [2021-11-12 23:01:22,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:22,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840547524] [2021-11-12 23:01:22,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:22,963 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:22,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:22,969 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:22,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:01:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:23,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:01:23,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:23,155 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 23:01:23,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:23,185 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 23:01:23,185 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:23,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840547524] [2021-11-12 23:01:23,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840547524] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:23,192 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:23,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:01:23,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822539708] [2021-11-12 23:01:23,193 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:23,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:23,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:23,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:23,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:23,196 INFO L87 Difference]: Start difference. First operand 1954 states and 2265 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 23:01:23,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:23,460 INFO L93 Difference]: Finished difference Result 3516 states and 4119 transitions. [2021-11-12 23:01:23,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:01:23,461 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 23:01:23,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:23,484 INFO L225 Difference]: With dead ends: 3516 [2021-11-12 23:01:23,484 INFO L226 Difference]: Without dead ends: 3516 [2021-11-12 23:01:23,484 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 23:01:23,486 INFO L933 BasicCegarLoop]: 2092 mSDtfsCounter, 2754 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 144.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.22ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 177.47ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:23,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2776 Valid, 4306 Invalid, 38 Unknown, 0 Unchecked, 11.22ms Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 177.47ms Time] [2021-11-12 23:01:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3516 states. [2021-11-12 23:01:23,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3516 to 2899. [2021-11-12 23:01:23,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 2066 states have (on average 1.9719264278799613) internal successors, (4074), 2884 states have internal predecessors, (4074), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 23:01:23,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 4118 transitions. [2021-11-12 23:01:23,587 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 4118 transitions. Word has length 6 [2021-11-12 23:01:23,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:23,588 INFO L470 AbstractCegarLoop]: Abstraction has 2899 states and 4118 transitions. [2021-11-12 23:01:23,588 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 23:01:23,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 4118 transitions. [2021-11-12 23:01:23,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:01:23,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:23,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:01:23,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:23,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:23,802 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:23,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:23,803 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2021-11-12 23:01:23,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:23,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007089697] [2021-11-12 23:01:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:23,805 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:23,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:23,806 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:23,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:01:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:24,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:01:24,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:24,077 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 23:01:24,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:24,107 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 23:01:24,107 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:24,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007089697] [2021-11-12 23:01:24,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007089697] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:24,108 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:24,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:01:24,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003096199] [2021-11-12 23:01:24,109 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:24,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:24,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:24,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:24,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:24,110 INFO L87 Difference]: Start difference. First operand 2899 states and 4118 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 23:01:24,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:24,224 INFO L93 Difference]: Finished difference Result 2839 states and 4032 transitions. [2021-11-12 23:01:24,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:01:24,225 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 23:01:24,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:24,272 INFO L225 Difference]: With dead ends: 2839 [2021-11-12 23:01:24,272 INFO L226 Difference]: Without dead ends: 2839 [2021-11-12 23:01:24,272 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 23:01:24,275 INFO L933 BasicCegarLoop]: 1766 mSDtfsCounter, 3472 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3483 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.30ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:24,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3483 Valid, 1794 Invalid, 24 Unknown, 0 Unchecked, 11.30ms Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 55.67ms Time] [2021-11-12 23:01:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2021-11-12 23:01:24,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2839. [2021-11-12 23:01:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2839 states, 2030 states have (on average 1.9645320197044336) internal successors, (3988), 2824 states have internal predecessors, (3988), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 23:01:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2839 states to 2839 states and 4032 transitions. [2021-11-12 23:01:24,381 INFO L78 Accepts]: Start accepts. Automaton has 2839 states and 4032 transitions. Word has length 11 [2021-11-12 23:01:24,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:24,381 INFO L470 AbstractCegarLoop]: Abstraction has 2839 states and 4032 transitions. [2021-11-12 23:01:24,382 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 23:01:24,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2839 states and 4032 transitions. [2021-11-12 23:01:24,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 23:01:24,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:24,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:01:24,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:24,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:24,596 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:24,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:24,597 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2021-11-12 23:01:24,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:24,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857841498] [2021-11-12 23:01:24,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:24,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:24,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:24,601 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:24,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:01:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:24,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:01:24,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:24,886 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 23:01:24,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:24,921 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 23:01:24,922 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:24,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857841498] [2021-11-12 23:01:24,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857841498] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:24,923 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:24,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-12 23:01:24,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85241594] [2021-11-12 23:01:24,923 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:24,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:01:24,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:24,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:01:24,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:01:24,925 INFO L87 Difference]: Start difference. First operand 2839 states and 4032 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 23:01:25,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:25,059 INFO L93 Difference]: Finished difference Result 2811 states and 3976 transitions. [2021-11-12 23:01:25,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:01:25,060 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 23:01:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:25,079 INFO L225 Difference]: With dead ends: 2811 [2021-11-12 23:01:25,080 INFO L226 Difference]: Without dead ends: 2811 [2021-11-12 23:01:25,080 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 23:01:25,082 INFO L933 BasicCegarLoop]: 1721 mSDtfsCounter, 1707 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.64ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.09ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:25,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1718 Valid, 3491 Invalid, 67 Unknown, 0 Unchecked, 10.64ms Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 72.09ms Time] [2021-11-12 23:01:25,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2021-11-12 23:01:25,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 2809. [2021-11-12 23:01:25,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 2014 states have (on average 1.951340615690169) internal successors, (3930), 2794 states have internal predecessors, (3930), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 23:01:25,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 3974 transitions. [2021-11-12 23:01:25,231 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 3974 transitions. Word has length 13 [2021-11-12 23:01:25,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:25,231 INFO L470 AbstractCegarLoop]: Abstraction has 2809 states and 3974 transitions. [2021-11-12 23:01:25,232 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 23:01:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 3974 transitions. [2021-11-12 23:01:25,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 23:01:25,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:25,234 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 23:01:25,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:25,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:25,448 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:25,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:25,448 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2021-11-12 23:01:25,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:25,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352142634] [2021-11-12 23:01:25,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:25,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:25,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:25,450 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:25,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:01:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:25,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:01:25,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:25,686 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 23:01:25,815 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 23:01:25,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:25,928 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 23:01:25,928 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:25,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352142634] [2021-11-12 23:01:25,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352142634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:25,929 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:25,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:01:25,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377699265] [2021-11-12 23:01:25,929 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:25,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:25,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:25,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:25,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:25,930 INFO L87 Difference]: Start difference. First operand 2809 states and 3974 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 23:01:31,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:31,690 INFO L93 Difference]: Finished difference Result 4467 states and 6106 transitions. [2021-11-12 23:01:31,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:01:31,691 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 23:01:31,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:31,722 INFO L225 Difference]: With dead ends: 4467 [2021-11-12 23:01:31,723 INFO L226 Difference]: Without dead ends: 4467 [2021-11-12 23:01:31,723 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 23:01:31,724 INFO L933 BasicCegarLoop]: 1071 mSDtfsCounter, 3382 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4801.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.35ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5654.76ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:31,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3390 Valid, 2422 Invalid, 2134 Unknown, 0 Unchecked, 24.35ms Time], IncrementalHoareTripleChecker [49 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 5654.76ms Time] [2021-11-12 23:01:31,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4467 states. [2021-11-12 23:01:31,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4467 to 2805. [2021-11-12 23:01:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2014 states have (on average 1.9473684210526316) internal successors, (3922), 2790 states have internal predecessors, (3922), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 23:01:31,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 3966 transitions. [2021-11-12 23:01:31,840 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 3966 transitions. Word has length 27 [2021-11-12 23:01:31,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:31,841 INFO L470 AbstractCegarLoop]: Abstraction has 2805 states and 3966 transitions. [2021-11-12 23:01:31,842 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 23:01:31,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 3966 transitions. [2021-11-12 23:01:31,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 23:01:31,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:31,844 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 23:01:31,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:32,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:32,059 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:32,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:32,059 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2021-11-12 23:01:32,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:32,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666334883] [2021-11-12 23:01:32,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:32,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:32,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:32,061 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:32,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:01:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:32,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:01:32,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:32,276 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 23:01:32,538 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 23:01:32,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:33,040 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 23:01:33,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:33,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666334883] [2021-11-12 23:01:33,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666334883] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:33,041 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:33,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:01:33,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920059588] [2021-11-12 23:01:33,042 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:33,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:01:33,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:33,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:01:33,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:01:33,043 INFO L87 Difference]: Start difference. First operand 2805 states and 3966 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 23:01:47,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:47,275 INFO L93 Difference]: Finished difference Result 3769 states and 4989 transitions. [2021-11-12 23:01:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:01:47,276 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 23:01:47,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:47,300 INFO L225 Difference]: With dead ends: 3769 [2021-11-12 23:01:47,300 INFO L226 Difference]: Without dead ends: 3769 [2021-11-12 23:01:47,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:01:47,301 INFO L933 BasicCegarLoop]: 1211 mSDtfsCounter, 2891 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 3054 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12508.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2891 SdHoareTripleChecker+Valid, 3614 SdHoareTripleChecker+Invalid, 3086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.82ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14029.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:47,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2891 Valid, 3614 Invalid, 3086 Unknown, 0 Unchecked, 23.82ms Time], IncrementalHoareTripleChecker [32 Valid, 3054 Invalid, 0 Unknown, 0 Unchecked, 14029.86ms Time] [2021-11-12 23:01:47,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2021-11-12 23:01:47,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 2801. [2021-11-12 23:01:47,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 2014 states have (on average 1.9433962264150944) internal successors, (3914), 2786 states have internal predecessors, (3914), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 23:01:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3958 transitions. [2021-11-12 23:01:47,389 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3958 transitions. Word has length 27 [2021-11-12 23:01:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:47,390 INFO L470 AbstractCegarLoop]: Abstraction has 2801 states and 3958 transitions. [2021-11-12 23:01:47,390 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 23:01:47,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3958 transitions. [2021-11-12 23:01:47,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-12 23:01:47,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:47,392 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 23:01:47,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 23:01:47,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:47,609 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:47,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:47,610 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2021-11-12 23:01:47,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:47,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241705491] [2021-11-12 23:01:47,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:47,611 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:47,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:47,612 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:47,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:01:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:47,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:01:47,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:47,996 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 23:01:47,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:48,129 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 23:01:48,129 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:48,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241705491] [2021-11-12 23:01:48,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241705491] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:48,130 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:48,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:01:48,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159221377] [2021-11-12 23:01:48,130 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:48,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:48,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:48,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:48,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:48,132 INFO L87 Difference]: Start difference. First operand 2801 states and 3958 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 23:01:48,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:48,217 INFO L93 Difference]: Finished difference Result 2789 states and 3938 transitions. [2021-11-12 23:01:48,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:01:48,218 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 23:01:48,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:48,233 INFO L225 Difference]: With dead ends: 2789 [2021-11-12 23:01:48,233 INFO L226 Difference]: Without dead ends: 2789 [2021-11-12 23:01:48,233 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 23:01:48,234 INFO L933 BasicCegarLoop]: 1715 mSDtfsCounter, 1683 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 3441 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.52ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.83ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:48,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1694 Valid, 3441 Invalid, 43 Unknown, 0 Unchecked, 6.52ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 48.83ms Time] [2021-11-12 23:01:48,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2021-11-12 23:01:48,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2789. [2021-11-12 23:01:48,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 2002 states have (on average 1.945054945054945) internal successors, (3894), 2774 states have internal predecessors, (3894), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 23:01:48,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 3938 transitions. [2021-11-12 23:01:48,323 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 3938 transitions. Word has length 42 [2021-11-12 23:01:48,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:48,324 INFO L470 AbstractCegarLoop]: Abstraction has 2789 states and 3938 transitions. [2021-11-12 23:01:48,324 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 23:01:48,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 3938 transitions. [2021-11-12 23:01:48,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-12 23:01:48,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:48,326 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 23:01:48,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:48,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:48,543 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:48,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:48,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2021-11-12 23:01:48,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:48,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119672752] [2021-11-12 23:01:48,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:48,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:48,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:48,545 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:48,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 23:01:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:48,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:01:48,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:49,237 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 23:01:49,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:49,668 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 23:01:49,668 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:49,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119672752] [2021-11-12 23:01:49,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119672752] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:49,668 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:49,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:01:49,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235562621] [2021-11-12 23:01:49,669 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:49,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:01:49,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:49,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:01:49,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:01:49,670 INFO L87 Difference]: Start difference. First operand 2789 states and 3938 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 23:01:49,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:49,993 INFO L93 Difference]: Finished difference Result 2978 states and 3973 transitions. [2021-11-12 23:01:49,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:01:49,994 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 23:01:49,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:50,017 INFO L225 Difference]: With dead ends: 2978 [2021-11-12 23:01:50,017 INFO L226 Difference]: Without dead ends: 2978 [2021-11-12 23:01:50,017 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 23:01:50,018 INFO L933 BasicCegarLoop]: 1793 mSDtfsCounter, 455 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 251.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.67ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 293.90ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:50,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 3382 Invalid, 99 Unknown, 0 Unchecked, 5.67ms Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 293.90ms Time] [2021-11-12 23:01:50,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-11-12 23:01:50,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2605. [2021-11-12 23:01:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2605 states, 1818 states have (on average 1.9466446644664466) internal successors, (3539), 2590 states have internal predecessors, (3539), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 23:01:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3583 transitions. [2021-11-12 23:01:50,123 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3583 transitions. Word has length 50 [2021-11-12 23:01:50,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:50,123 INFO L470 AbstractCegarLoop]: Abstraction has 2605 states and 3583 transitions. [2021-11-12 23:01:50,123 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 23:01:50,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3583 transitions. [2021-11-12 23:01:50,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-12 23:01:50,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:50,125 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 23:01:50,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:50,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:50,331 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:01:50,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:50,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2021-11-12 23:01:50,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:50,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433892243] [2021-11-12 23:01:50,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:50,333 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:50,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:50,335 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:50,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:01:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:50,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:01:50,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:50,786 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 23:01:50,796 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 23:01:51,544 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-12 23:01:51,544 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 27 treesize of output 29 [2021-11-12 23:01:51,552 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-12 23:01:51,553 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 26 treesize of output 22 [2021-11-12 23:01:51,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:01:51,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:56,872 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 23:01:56,873 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:56,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433892243] [2021-11-12 23:01:56,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433892243] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:56,874 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:56,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:01:56,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533955203] [2021-11-12 23:01:56,874 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:56,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:01:56,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:56,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:01:56,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-12 23:01:56,877 INFO L87 Difference]: Start difference. First operand 2605 states and 3583 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 23:02:09,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:09,036 INFO L93 Difference]: Finished difference Result 4003 states and 5207 transitions. [2021-11-12 23:02:09,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:02:09,038 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 23:02:09,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:09,050 INFO L225 Difference]: With dead ends: 4003 [2021-11-12 23:02:09,050 INFO L226 Difference]: Without dead ends: 4003 [2021-11-12 23:02:09,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-12 23:02:09,052 INFO L933 BasicCegarLoop]: 1235 mSDtfsCounter, 1925 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10405.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 5514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.80ms SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2690 IncrementalHoareTripleChecker+Unchecked, 11994.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:09,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1942 Valid, 3673 Invalid, 5514 Unknown, 0 Unchecked, 30.80ms Time], IncrementalHoareTripleChecker [75 Valid, 2749 Invalid, 0 Unknown, 2690 Unchecked, 11994.43ms Time] [2021-11-12 23:02:09,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4003 states. [2021-11-12 23:02:09,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4003 to 2700. [2021-11-12 23:02:09,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 1945 states have (on average 1.906426735218509) internal successors, (3708), 2682 states have internal predecessors, (3708), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 17 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 23:02:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 3758 transitions. [2021-11-12 23:02:09,153 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 3758 transitions. Word has length 53 [2021-11-12 23:02:09,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:09,154 INFO L470 AbstractCegarLoop]: Abstraction has 2700 states and 3758 transitions. [2021-11-12 23:02:09,154 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 23:02:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 3758 transitions. [2021-11-12 23:02:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 23:02:09,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:09,156 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 23:02:09,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:09,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:09,366 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:02:09,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:09,367 INFO L85 PathProgramCache]: Analyzing trace with hash -61627503, now seen corresponding path program 1 times [2021-11-12 23:02:09,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:09,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424726060] [2021-11-12 23:02:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:09,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:09,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:09,369 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:09,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 23:02:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:09,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:02:09,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:09,841 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 23:02:09,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:09,916 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 23:02:10,246 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 23:02:10,246 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:10,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424726060] [2021-11-12 23:02:10,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424726060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:02:10,247 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:02:10,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:02:10,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954264048] [2021-11-12 23:02:10,247 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:02:10,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:02:10,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:10,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:02:10,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:02:10,248 INFO L87 Difference]: Start difference. First operand 2700 states and 3758 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 23:02:14,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:14,710 INFO L93 Difference]: Finished difference Result 2698 states and 3754 transitions. [2021-11-12 23:02:14,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:02:14,711 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 23:02:14,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:14,718 INFO L225 Difference]: With dead ends: 2698 [2021-11-12 23:02:14,718 INFO L226 Difference]: Without dead ends: 2698 [2021-11-12 23:02:14,719 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 23:02:14,720 INFO L933 BasicCegarLoop]: 1068 mSDtfsCounter, 2424 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3828.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2435 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.01ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4407.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:14,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2435 Valid, 2112 Invalid, 924 Unknown, 0 Unchecked, 12.01ms Time], IncrementalHoareTripleChecker [30 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 4407.15ms Time] [2021-11-12 23:02:14,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-11-12 23:02:14,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2698. [2021-11-12 23:02:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 1945 states have (on average 1.9043701799485862) internal successors, (3704), 2680 states have internal predecessors, (3704), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 17 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 23:02:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3754 transitions. [2021-11-12 23:02:14,775 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3754 transitions. Word has length 55 [2021-11-12 23:02:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:14,775 INFO L470 AbstractCegarLoop]: Abstraction has 2698 states and 3754 transitions. [2021-11-12 23:02:14,776 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 23:02:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3754 transitions. [2021-11-12 23:02:14,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-12 23:02:14,777 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:14,777 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 23:02:14,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:14,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:14,991 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:02:14,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:14,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2021-11-12 23:02:14,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:14,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204586472] [2021-11-12 23:02:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:14,993 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:14,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:14,995 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:15,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 23:02:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:15,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:02:15,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:15,366 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 23:02:15,379 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 23:02:15,414 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 23:02:15,426 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 23:02:15,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:15,561 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 23:02:15,561 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:15,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204586472] [2021-11-12 23:02:15,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204586472] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:02:15,561 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:02:15,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:02:15,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641557972] [2021-11-12 23:02:15,562 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:02:15,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:02:15,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:15,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:02:15,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:02:15,563 INFO L87 Difference]: Start difference. First operand 2698 states and 3754 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 23:02:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:20,990 INFO L93 Difference]: Finished difference Result 2697 states and 3752 transitions. [2021-11-12 23:02:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:02:20,990 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 23:02:20,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:20,996 INFO L225 Difference]: With dead ends: 2697 [2021-11-12 23:02:20,997 INFO L226 Difference]: Without dead ends: 2697 [2021-11-12 23:02:20,997 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 23:02:20,998 INFO L933 BasicCegarLoop]: 1685 mSDtfsCounter, 4 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 2435 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4606.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4310 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.48ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5342.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:20,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4310 Invalid, 2436 Unknown, 0 Unchecked, 15.48ms Time], IncrementalHoareTripleChecker [1 Valid, 2435 Invalid, 0 Unknown, 0 Unchecked, 5342.78ms Time] [2021-11-12 23:02:21,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2021-11-12 23:02:21,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2697. [2021-11-12 23:02:21,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 1945 states have (on average 1.9033419023136247) internal successors, (3702), 2679 states have internal predecessors, (3702), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 17 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 23:02:21,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 3752 transitions. [2021-11-12 23:02:21,054 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 3752 transitions. Word has length 58 [2021-11-12 23:02:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:21,055 INFO L470 AbstractCegarLoop]: Abstraction has 2697 states and 3752 transitions. [2021-11-12 23:02:21,055 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 23:02:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 3752 transitions. [2021-11-12 23:02:21,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-12 23:02:21,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:21,057 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 23:02:21,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:21,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:21,272 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:02:21,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:21,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2021-11-12 23:02:21,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:21,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894648235] [2021-11-12 23:02:21,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:21,273 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:21,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:21,275 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:21,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 23:02:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:21,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:02:21,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:21,776 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 23:02:21,798 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 23:02:21,809 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 23:02:21,869 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 23:02:21,872 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 23:02:21,893 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 23:02:21,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:22,218 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 23:02:22,218 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:22,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894648235] [2021-11-12 23:02:22,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894648235] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:02:22,219 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:02:22,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 23:02:22,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492719533] [2021-11-12 23:02:22,220 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:02:22,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:02:22,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:22,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:02:22,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:02:22,222 INFO L87 Difference]: Start difference. First operand 2697 states and 3752 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 23:02:40,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:40,450 INFO L93 Difference]: Finished difference Result 2696 states and 3750 transitions. [2021-11-12 23:02:40,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:02:40,451 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 23:02:40,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:40,457 INFO L225 Difference]: With dead ends: 2696 [2021-11-12 23:02:40,457 INFO L226 Difference]: Without dead ends: 2696 [2021-11-12 23:02:40,457 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 23:02:40,458 INFO L933 BasicCegarLoop]: 1685 mSDtfsCounter, 3 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 3311 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16429.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5115 SdHoareTripleChecker+Invalid, 3313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.69ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18091.59ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:40,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 5115 Invalid, 3313 Unknown, 0 Unchecked, 23.69ms Time], IncrementalHoareTripleChecker [2 Valid, 3311 Invalid, 0 Unknown, 0 Unchecked, 18091.59ms Time] [2021-11-12 23:02:40,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2021-11-12 23:02:40,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2021-11-12 23:02:40,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 1943 states have (on average 1.9042717447246527) internal successors, (3700), 2678 states have internal predecessors, (3700), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 17 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 23:02:40,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 3750 transitions. [2021-11-12 23:02:40,513 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 3750 transitions. Word has length 58 [2021-11-12 23:02:40,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:40,514 INFO L470 AbstractCegarLoop]: Abstraction has 2696 states and 3750 transitions. [2021-11-12 23:02:40,514 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 23:02:40,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 3750 transitions. [2021-11-12 23:02:40,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-12 23:02:40,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:40,515 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 23:02:40,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-12 23:02:40,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:40,731 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:02:40,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:40,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1810601854, now seen corresponding path program 1 times [2021-11-12 23:02:40,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:40,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778724715] [2021-11-12 23:02:40,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:40,733 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:40,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:40,734 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:40,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 23:02:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:41,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:02:41,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:41,257 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 23:02:41,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:41,438 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 23:02:41,438 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:41,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778724715] [2021-11-12 23:02:41,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778724715] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:02:41,439 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:02:41,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:02:41,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600252480] [2021-11-12 23:02:41,439 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:02:41,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:02:41,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:41,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:02:41,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:02:41,441 INFO L87 Difference]: Start difference. First operand 2696 states and 3750 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 23:02:41,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:41,578 INFO L93 Difference]: Finished difference Result 2706 states and 3767 transitions. [2021-11-12 23:02:41,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:02:41,579 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 23:02:41,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:41,586 INFO L225 Difference]: With dead ends: 2706 [2021-11-12 23:02:41,587 INFO L226 Difference]: Without dead ends: 2706 [2021-11-12 23:02:41,587 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 23:02:41,588 INFO L933 BasicCegarLoop]: 1683 mSDtfsCounter, 9 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5039 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.42ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.35ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:41,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 5039 Invalid, 50 Unknown, 0 Unchecked, 4.42ms Time], IncrementalHoareTripleChecker [10 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 95.35ms Time] [2021-11-12 23:02:41,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2021-11-12 23:02:41,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 2706. [2021-11-12 23:02:41,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 1951 states have (on average 1.902614044079959) internal successors, (3712), 2687 states have internal predecessors, (3712), 25 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (30), 17 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-12 23:02:41,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3767 transitions. [2021-11-12 23:02:41,656 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3767 transitions. Word has length 66 [2021-11-12 23:02:41,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:41,656 INFO L470 AbstractCegarLoop]: Abstraction has 2706 states and 3767 transitions. [2021-11-12 23:02:41,656 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 23:02:41,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3767 transitions. [2021-11-12 23:02:41,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-12 23:02:41,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:41,658 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 23:02:41,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:41,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:41,875 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:02:41,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:41,875 INFO L85 PathProgramCache]: Analyzing trace with hash 67067806, now seen corresponding path program 1 times [2021-11-12 23:02:41,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:41,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173836451] [2021-11-12 23:02:41,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:41,876 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:41,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:41,878 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:41,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 23:02:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:42,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:02:42,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:42,339 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 23:02:42,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:42,611 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 23:02:42,611 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:42,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173836451] [2021-11-12 23:02:42,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173836451] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:02:42,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1935143178] [2021-11-12 23:02:42,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:42,612 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:02:42,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:02:42,613 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:02:42,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-12 23:02:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:42,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:02:42,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:43,094 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 23:02:43,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:43,257 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 23:02:43,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1935143178] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:02:43,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343931693] [2021-11-12 23:02:43,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:43,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:02:43,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:02:43,259 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:02:43,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-12 23:02:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:43,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:02:43,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:43,654 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 23:02:43,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:43,910 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 23:02:43,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343931693] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:02:43,910 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:02:43,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-12 23:02:43,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256660804] [2021-11-12 23:02:43,911 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:02:43,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:02:43,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:43,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:02:43,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:02:43,914 INFO L87 Difference]: Start difference. First operand 2706 states and 3767 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 23:02:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:44,628 INFO L93 Difference]: Finished difference Result 2720 states and 3788 transitions. [2021-11-12 23:02:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 23:02:44,628 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 23:02:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:44,636 INFO L225 Difference]: With dead ends: 2720 [2021-11-12 23:02:44,637 INFO L226 Difference]: Without dead ends: 2714 [2021-11-12 23:02:44,637 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 23:02:44,638 INFO L933 BasicCegarLoop]: 1683 mSDtfsCounter, 33 mSDsluCounter, 6718 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 321.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 8401 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.59ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 369.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:44,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 8401 Invalid, 192 Unknown, 0 Unchecked, 7.59ms Time], IncrementalHoareTripleChecker [45 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 369.78ms Time] [2021-11-12 23:02:44,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2021-11-12 23:02:44,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2712. [2021-11-12 23:02:44,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2712 states, 1957 states have (on average 1.9003576903423607) internal successors, (3719), 2693 states have internal predecessors, (3719), 25 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (30), 17 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-12 23:02:44,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 3774 transitions. [2021-11-12 23:02:44,696 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 3774 transitions. Word has length 68 [2021-11-12 23:02:44,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:44,697 INFO L470 AbstractCegarLoop]: Abstraction has 2712 states and 3774 transitions. [2021-11-12 23:02:44,697 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 23:02:44,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 3774 transitions. [2021-11-12 23:02:44,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-12 23:02:44,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:44,699 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 23:02:44,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:44,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:45,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:45,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:02:45,312 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 928 more)] === [2021-11-12 23:02:45,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:45,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1089755102, now seen corresponding path program 2 times [2021-11-12 23:02:45,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:45,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423236189] [2021-11-12 23:02:45,313 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:02:45,313 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:45,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:45,314 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:45,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 23:02:45,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:02:45,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:02:45,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:02:45,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:46,166 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 23:02:46,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:46,979 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 23:02:46,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:46,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423236189] [2021-11-12 23:02:46,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423236189] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:02:46,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1096482851] [2021-11-12 23:02:46,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:02:46,980 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:02:46,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:02:46,981 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:02:46,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-12 23:02:48,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:02:48,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:02:48,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:02:48,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:48,710 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 23:02:48,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:49,061 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 23:02:49,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1096482851] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:02:49,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715178048] [2021-11-12 23:02:49,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:02:49,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:02:49,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:02:49,063 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:02:49,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d0c03ed-15d7-46c8-b6c0-b2f6016fbfbe/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-12 23:03:13,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:03:13,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:03:13,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:03:13,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:03:13,097 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 23:03:13,316 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 23:03:13,316 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 23:03:13,371 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 23:04:59,875 WARN L227 SmtUtils]: Spent 22.51s 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 23:04:59,876 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-12 23:04:59,876 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 23:05:00,650 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-12 23:05:00,651 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 23:05:00,795 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 23:05:00,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:05:02,986 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-12 23:05:02,986 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 23:10:44,581 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-12 23:10:44,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 107 [2021-11-12 23:10:47,800 WARN L838 $PredicateComparison]: unable to prove that (forall ((|#Ultimate.C_memset_#t~loopctr405| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_120| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr405|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr405_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_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 23:11:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:06,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715178048] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:06,963 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:11:06,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-12 23:11:06,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073505930] [2021-11-12 23:11:06,963 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:06,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-12 23:11:06,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:11:06,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-12 23:11:06,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1536, Unknown=195, NotChecked=84, Total=1980 [2021-11-12 23:11:06,967 INFO L87 Difference]: Start difference. First operand 2712 states and 3774 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 23:11:11,345 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|#Ultimate.C_memset_#t~loopctr405| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_120| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr405|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-12 23:13:28,217 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|#Ultimate.C_memset_#t~loopctr405| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr405|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr405_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr405_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr405_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr405|) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 23:13:30,244 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr405|) (forall ((|#Ultimate.C_memset_#t~loopctr405| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr405|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr405_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr405_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 23:13:32,264 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|#Ultimate.C_memset_#t~loopctr405| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr405|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr405_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr405_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_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~loopctr405|)) is different from false [2021-11-12 23:13:34,284 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr405|) |c_#Ultimate.C_memset_#amount|) (forall ((|#Ultimate.C_memset_#t~loopctr405| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr405|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr405|) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_84| (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$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~loopctr405_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_87| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)))))) is different from false [2021-11-12 23:13:36,297 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr405|) |c_#Ultimate.C_memset_#amount|) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr405|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr405_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_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 23:13:38,310 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (not (bvult (_ bv6 32) |c_#Ultimate.C_memset_#amount|)) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (bvult (_ bv5 32) |c_#Ultimate.C_memset_#amount|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr405_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr405_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr405_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr405_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