./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:32:39,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:32:39,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:32:39,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:32:39,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:32:39,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:32:39,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:32:39,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:32:39,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:32:39,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:32:39,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:32:39,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:32:39,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:32:39,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:32:39,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:32:39,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:32:39,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:32:39,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:32:39,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:32:39,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:32:39,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:32:39,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:32:39,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:32:39,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:32:39,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:32:39,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:32:39,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:32:39,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:32:39,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:32:39,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:32:39,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:32:39,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:32:39,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:32:39,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:32:39,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:32:39,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:32:39,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:32:39,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:32:39,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:32:39,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:32:39,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:32:39,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:32:39,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:32:39,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:32:39,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:32:39,884 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:32:39,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:32:39,884 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:32:39,885 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:32:39,885 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:32:39,886 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:32:39,886 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:32:39,887 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:32:39,888 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:32:39,888 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:32:39,889 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:32:39,889 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:32:39,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:32:39,891 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:32:39,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:32:39,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:32:39,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:32:39,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:32:39,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:32:39,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:32:39,893 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:32:39,894 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:32:39,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:32:39,894 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:32:39,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:32:39,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:32:39,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:32:39,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:32:39,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:32:39,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:32:39,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:32:39,899 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:32:39,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:32:39,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:32:39,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:32:39,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:32:39,901 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_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 [2021-11-03 04:32:40,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:32:40,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:32:40,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:32:40,281 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:32:40,282 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:32:40,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2021-11-03 04:32:40,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/data/6e7609c80/01d2389275e9470ebfb7b692a315ca16/FLAG14cd71cc5 [2021-11-03 04:32:41,225 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:32:41,226 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2021-11-03 04:32:41,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/data/6e7609c80/01d2389275e9470ebfb7b692a315ca16/FLAG14cd71cc5 [2021-11-03 04:32:41,313 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/data/6e7609c80/01d2389275e9470ebfb7b692a315ca16 [2021-11-03 04:32:41,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:32:41,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:32:41,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:32:41,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:32:41,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:32:41,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:32:41" (1/1) ... [2021-11-03 04:32:41,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2c3840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:41, skipping insertion in model container [2021-11-03 04:32:41,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:32:41" (1/1) ... [2021-11-03 04:32:41,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:32:41,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:32:41,912 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_9e12dc34-1207-4e04-8bf9-960eb928ea8c/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2021-11-03 04:32:42,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:32:42,302 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) [2021-11-03 04:32:42,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5907fc05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:42, skipping insertion in model container [2021-11-03 04:32:42,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:32:42,304 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:32:42,307 INFO L168 Benchmark]: Toolchain (without parser) took 981.91 ms. Allocated memory was 86.0 MB in the beginning and 121.6 MB in the end (delta: 35.7 MB). Free memory was 46.7 MB in the beginning and 83.1 MB in the end (delta: -36.3 MB). Peak memory consumption was 706.8 kB. Max. memory is 16.1 GB. [2021-11-03 04:32:42,309 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:32:42,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 955.49 ms. Allocated memory was 86.0 MB in the beginning and 121.6 MB in the end (delta: 35.7 MB). Free memory was 64.9 MB in the beginning and 83.1 MB in the end (delta: -18.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:32:42,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 955.49 ms. Allocated memory was 86.0 MB in the beginning and 121.6 MB in the end (delta: 35.7 MB). Free memory was 64.9 MB in the beginning and 83.1 MB in the end (delta: -18.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 441]: 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_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:32:45,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:32:45,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:32:45,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:32:45,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:32:45,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:32:45,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:32:45,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:32:45,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:32:45,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:32:45,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:32:45,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:32:45,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:32:45,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:32:45,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:32:45,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:32:45,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:32:45,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:32:45,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:32:45,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:32:45,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:32:45,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:32:45,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:32:45,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:32:45,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:32:45,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:32:45,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:32:45,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:32:45,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:32:45,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:32:45,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:32:45,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:32:45,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:32:45,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:32:45,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:32:45,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:32:45,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:32:45,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:32:45,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:32:45,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:32:45,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:32:45,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:32:45,369 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:32:45,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:32:45,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:32:45,371 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:32:45,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:32:45,372 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:32:45,372 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:32:45,372 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:32:45,372 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:32:45,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:32:45,376 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:32:45,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:32:45,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:32:45,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:32:45,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:32:45,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:32:45,377 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:32:45,378 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:32:45,378 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:32:45,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:32:45,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:32:45,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:32:45,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:32:45,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:32:45,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:32:45,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:32:45,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:32:45,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:32:45,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:32:45,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:32:45,381 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:32:45,382 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:32:45,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:32:45,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:32:45,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:32:45,383 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_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 [2021-11-03 04:32:45,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:32:45,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:32:45,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:32:45,918 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:32:45,919 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:32:45,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2021-11-03 04:32:46,007 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/data/5ddf20c0f/d74f79e042594600910a13f6a0ffc3f8/FLAG3c78c1384 [2021-11-03 04:32:46,988 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:32:46,989 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2021-11-03 04:32:47,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/data/5ddf20c0f/d74f79e042594600910a13f6a0ffc3f8/FLAG3c78c1384 [2021-11-03 04:32:47,463 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/data/5ddf20c0f/d74f79e042594600910a13f6a0ffc3f8 [2021-11-03 04:32:47,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:32:47,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:32:47,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:32:47,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:32:47,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:32:47,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:32:47" (1/1) ... [2021-11-03 04:32:47,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6514a46c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:47, skipping insertion in model container [2021-11-03 04:32:47,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:32:47" (1/1) ... [2021-11-03 04:32:47,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:32:47,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:32:47,874 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_9e12dc34-1207-4e04-8bf9-960eb928ea8c/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2021-11-03 04:32:48,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:32:48,349 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:32:48,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:32:48,411 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_9e12dc34-1207-4e04-8bf9-960eb928ea8c/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2021-11-03 04:32:48,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:32:48,596 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:32:48,622 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_9e12dc34-1207-4e04-8bf9-960eb928ea8c/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2021-11-03 04:32:48,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:32:48,815 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:32:48,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48 WrapperNode [2021-11-03 04:32:48,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:32:48,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:32:48,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:32:48,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:32:48,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (1/1) ... [2021-11-03 04:32:48,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (1/1) ... [2021-11-03 04:32:55,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:32:55,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:32:55,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:32:55,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:32:55,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (1/1) ... [2021-11-03 04:32:55,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (1/1) ... [2021-11-03 04:32:56,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (1/1) ... [2021-11-03 04:32:56,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (1/1) ... [2021-11-03 04:32:59,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (1/1) ... [2021-11-03 04:33:00,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (1/1) ... [2021-11-03 04:33:00,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (1/1) ... [2021-11-03 04:33:01,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:33:01,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:33:01,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:33:01,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:33:01,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (1/1) ... [2021-11-03 04:33:01,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:33:01,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:33:01,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:33:01,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:33:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-03 04:33:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:33:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:33:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:33:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:34:17,387 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:34:17,388 INFO L299 CfgBuilder]: Removed 36635 assume(true) statements. [2021-11-03 04:34:17,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:34:17 BoogieIcfgContainer [2021-11-03 04:34:17,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:34:17,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:34:17,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:34:17,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:34:17,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:32:47" (1/3) ... [2021-11-03 04:34:17,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52918f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:34:17, skipping insertion in model container [2021-11-03 04:34:17,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:32:48" (2/3) ... [2021-11-03 04:34:17,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52918f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:34:17, skipping insertion in model container [2021-11-03 04:34:17,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:34:17" (3/3) ... [2021-11-03 04:34:17,441 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec3_productSimulator.cil.c [2021-11-03 04:34:17,448 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:34:17,448 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 128 error locations. [2021-11-03 04:34:17,627 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:34:17,635 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:34:17,636 INFO L340 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2021-11-03 04:34:18,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 36308 states, 36179 states have (on average 1.6158268608861495) internal successors, (58459), 36307 states have internal predecessors, (58459), 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) [2021-11-03 04:34:18,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 04:34:18,275 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:18,276 INFO L513 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] [2021-11-03 04:34:18,277 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:18,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:18,284 INFO L85 PathProgramCache]: Analyzing trace with hash -78591729, now seen corresponding path program 1 times [2021-11-03 04:34:18,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:18,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064632889] [2021-11-03 04:34:18,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:18,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:18,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:18,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:18,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:34:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:18,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:34:18,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:19,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:19,514 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:19,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064632889] [2021-11-03 04:34:19,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064632889] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:19,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:19,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:34:19,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348725589] [2021-11-03 04:34:19,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:34:19,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:19,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:34:19,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:34:19,924 INFO L87 Difference]: Start difference. First operand has 36308 states, 36179 states have (on average 1.6158268608861495) internal successors, (58459), 36307 states have internal predecessors, (58459), 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) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 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) [2021-11-03 04:34:21,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:21,203 INFO L93 Difference]: Finished difference Result 72281 states and 116306 transitions. [2021-11-03 04:34:21,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:34:21,205 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 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 56 [2021-11-03 04:34:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:21,427 INFO L225 Difference]: With dead ends: 72281 [2021-11-03 04:34:21,428 INFO L226 Difference]: Without dead ends: 24112 [2021-11-03 04:34:21,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:34:21,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24112 states. [2021-11-03 04:34:22,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24112 to 24112. [2021-11-03 04:34:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24112 states, 23984 states have (on average 1.6172448298865911) internal successors, (38788), 24111 states have internal predecessors, (38788), 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) [2021-11-03 04:34:23,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24112 states to 24112 states and 38788 transitions. [2021-11-03 04:34:23,051 INFO L78 Accepts]: Start accepts. Automaton has 24112 states and 38788 transitions. Word has length 56 [2021-11-03 04:34:23,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:23,052 INFO L470 AbstractCegarLoop]: Abstraction has 24112 states and 38788 transitions. [2021-11-03 04:34:23,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 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) [2021-11-03 04:34:23,054 INFO L276 IsEmpty]: Start isEmpty. Operand 24112 states and 38788 transitions. [2021-11-03 04:34:23,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 04:34:23,063 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:23,064 INFO L513 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] [2021-11-03 04:34:23,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 04:34:23,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:23,282 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:23,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:23,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1646658700, now seen corresponding path program 1 times [2021-11-03 04:34:23,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:23,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429570703] [2021-11-03 04:34:23,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:23,285 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:23,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:23,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:23,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:34:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:23,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:34:23,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:24,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:24,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:24,311 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:24,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429570703] [2021-11-03 04:34:24,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429570703] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:24,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:24,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:34:24,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439987802] [2021-11-03 04:34:24,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:34:24,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:24,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:34:24,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:34:24,322 INFO L87 Difference]: Start difference. First operand 24112 states and 38788 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2021-11-03 04:34:26,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:26,079 INFO L93 Difference]: Finished difference Result 48199 states and 77538 transitions. [2021-11-03 04:34:26,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:34:26,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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 57 [2021-11-03 04:34:26,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:26,238 INFO L225 Difference]: With dead ends: 48199 [2021-11-03 04:34:26,238 INFO L226 Difference]: Without dead ends: 24112 [2021-11-03 04:34:26,292 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:34:26,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24112 states. [2021-11-03 04:34:26,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24112 to 24112. [2021-11-03 04:34:26,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24112 states, 23984 states have (on average 1.6169529686457638) internal successors, (38781), 24111 states have internal predecessors, (38781), 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) [2021-11-03 04:34:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24112 states to 24112 states and 38781 transitions. [2021-11-03 04:34:26,990 INFO L78 Accepts]: Start accepts. Automaton has 24112 states and 38781 transitions. Word has length 57 [2021-11-03 04:34:26,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:26,991 INFO L470 AbstractCegarLoop]: Abstraction has 24112 states and 38781 transitions. [2021-11-03 04:34:26,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2021-11-03 04:34:26,992 INFO L276 IsEmpty]: Start isEmpty. Operand 24112 states and 38781 transitions. [2021-11-03 04:34:26,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:34:26,995 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:26,996 INFO L513 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] [2021-11-03 04:34:27,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:27,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:27,211 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:27,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:27,211 INFO L85 PathProgramCache]: Analyzing trace with hash 593292322, now seen corresponding path program 1 times [2021-11-03 04:34:27,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:27,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410981578] [2021-11-03 04:34:27,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:27,214 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:27,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:27,215 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:27,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:34:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:27,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:34:27,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:27,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:28,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:28,208 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:28,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410981578] [2021-11-03 04:34:28,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410981578] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:28,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:28,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:34:28,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661913874] [2021-11-03 04:34:28,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:34:28,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:28,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:34:28,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:34:28,223 INFO L87 Difference]: Start difference. First operand 24112 states and 38781 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2021-11-03 04:34:31,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:31,608 INFO L93 Difference]: Finished difference Result 32814 states and 52958 transitions. [2021-11-03 04:34:31,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:34:31,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 62 [2021-11-03 04:34:31,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:31,649 INFO L225 Difference]: With dead ends: 32814 [2021-11-03 04:34:31,649 INFO L226 Difference]: Without dead ends: 8722 [2021-11-03 04:34:31,679 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:34:31,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2021-11-03 04:34:31,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 8722. [2021-11-03 04:34:31,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8722 states, 8658 states have (on average 1.6305151305151304) internal successors, (14117), 8721 states have internal predecessors, (14117), 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) [2021-11-03 04:34:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8722 states to 8722 states and 14117 transitions. [2021-11-03 04:34:31,958 INFO L78 Accepts]: Start accepts. Automaton has 8722 states and 14117 transitions. Word has length 62 [2021-11-03 04:34:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:31,959 INFO L470 AbstractCegarLoop]: Abstraction has 8722 states and 14117 transitions. [2021-11-03 04:34:31,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2021-11-03 04:34:31,960 INFO L276 IsEmpty]: Start isEmpty. Operand 8722 states and 14117 transitions. [2021-11-03 04:34:31,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:34:31,965 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:31,965 INFO L513 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, 1, 1] [2021-11-03 04:34:31,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 04:34:32,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:32,183 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:32,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:32,183 INFO L85 PathProgramCache]: Analyzing trace with hash 990370568, now seen corresponding path program 1 times [2021-11-03 04:34:32,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:32,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49421630] [2021-11-03 04:34:32,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:32,185 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:32,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:32,188 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:32,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:34:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:32,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:34:32,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:33,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:33,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:33,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:33,407 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:33,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49421630] [2021-11-03 04:34:33,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49421630] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:33,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:33,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:34:33,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476608305] [2021-11-03 04:34:33,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:34:33,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:34:33,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:34:33,410 INFO L87 Difference]: Start difference. First operand 8722 states and 14117 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-03 04:34:34,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:34,266 INFO L93 Difference]: Finished difference Result 15826 states and 25742 transitions. [2021-11-03 04:34:34,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:34:34,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2021-11-03 04:34:34,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:34,283 INFO L225 Difference]: With dead ends: 15826 [2021-11-03 04:34:34,283 INFO L226 Difference]: Without dead ends: 4762 [2021-11-03 04:34:34,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:34:34,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2021-11-03 04:34:34,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 4762. [2021-11-03 04:34:34,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4762 states, 4698 states have (on average 1.663686675180928) internal successors, (7816), 4761 states have internal predecessors, (7816), 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) [2021-11-03 04:34:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4762 states to 4762 states and 7816 transitions. [2021-11-03 04:34:34,452 INFO L78 Accepts]: Start accepts. Automaton has 4762 states and 7816 transitions. Word has length 68 [2021-11-03 04:34:34,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:34,453 INFO L470 AbstractCegarLoop]: Abstraction has 4762 states and 7816 transitions. [2021-11-03 04:34:34,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-03 04:34:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 4762 states and 7816 transitions. [2021-11-03 04:34:34,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 04:34:34,456 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:34,457 INFO L513 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, 1, 1, 1] [2021-11-03 04:34:34,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:34,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:34,671 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:34,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash -961550306, now seen corresponding path program 1 times [2021-11-03 04:34:34,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:34,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891217654] [2021-11-03 04:34:34,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:34,673 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:34,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:34,676 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:34,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:34:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:35,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:34:35,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:35,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:35,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:35,848 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:35,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891217654] [2021-11-03 04:34:35,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891217654] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:35,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:35,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:34:35,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320666139] [2021-11-03 04:34:35,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:34:35,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:35,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:34:35,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:34:35,851 INFO L87 Difference]: Start difference. First operand 4762 states and 7816 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-03 04:34:38,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:38,125 INFO L93 Difference]: Finished difference Result 9485 states and 15574 transitions. [2021-11-03 04:34:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:34:38,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2021-11-03 04:34:38,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:38,142 INFO L225 Difference]: With dead ends: 9485 [2021-11-03 04:34:38,142 INFO L226 Difference]: Without dead ends: 4759 [2021-11-03 04:34:38,148 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:34:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4759 states. [2021-11-03 04:34:38,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4759 to 4753. [2021-11-03 04:34:38,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4753 states, 4689 states have (on average 1.6606952441885263) internal successors, (7787), 4752 states have internal predecessors, (7787), 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) [2021-11-03 04:34:38,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4753 states to 4753 states and 7787 transitions. [2021-11-03 04:34:38,316 INFO L78 Accepts]: Start accepts. Automaton has 4753 states and 7787 transitions. Word has length 69 [2021-11-03 04:34:38,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:38,316 INFO L470 AbstractCegarLoop]: Abstraction has 4753 states and 7787 transitions. [2021-11-03 04:34:38,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-03 04:34:38,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4753 states and 7787 transitions. [2021-11-03 04:34:38,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 04:34:38,319 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:38,320 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:38,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:38,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:38,538 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:38,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:38,538 INFO L85 PathProgramCache]: Analyzing trace with hash 847628129, now seen corresponding path program 1 times [2021-11-03 04:34:38,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:38,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133497668] [2021-11-03 04:34:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:38,540 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:38,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:38,542 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:38,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:34:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:39,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:34:39,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:39,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:39,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:39,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:39,735 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:39,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133497668] [2021-11-03 04:34:39,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133497668] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:39,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:39,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:34:39,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143041671] [2021-11-03 04:34:39,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:34:39,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:39,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:34:39,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:34:39,739 INFO L87 Difference]: Start difference. First operand 4753 states and 7787 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2021-11-03 04:34:40,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:40,903 INFO L93 Difference]: Finished difference Result 18883 states and 30977 transitions. [2021-11-03 04:34:40,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:34:40,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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 75 [2021-11-03 04:34:40,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:40,945 INFO L225 Difference]: With dead ends: 18883 [2021-11-03 04:34:40,945 INFO L226 Difference]: Without dead ends: 14170 [2021-11-03 04:34:40,953 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:34:40,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14170 states. [2021-11-03 04:34:41,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14170 to 4752. [2021-11-03 04:34:41,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4752 states, 4688 states have (on average 1.6601962457337884) internal successors, (7783), 4751 states have internal predecessors, (7783), 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) [2021-11-03 04:34:41,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4752 states to 4752 states and 7783 transitions. [2021-11-03 04:34:41,290 INFO L78 Accepts]: Start accepts. Automaton has 4752 states and 7783 transitions. Word has length 75 [2021-11-03 04:34:41,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:41,291 INFO L470 AbstractCegarLoop]: Abstraction has 4752 states and 7783 transitions. [2021-11-03 04:34:41,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2021-11-03 04:34:41,292 INFO L276 IsEmpty]: Start isEmpty. Operand 4752 states and 7783 transitions. [2021-11-03 04:34:41,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 04:34:41,294 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:41,294 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:41,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:41,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:41,513 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:41,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:41,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1445643348, now seen corresponding path program 1 times [2021-11-03 04:34:41,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:41,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204685469] [2021-11-03 04:34:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:41,516 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:41,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:41,517 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:41,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:34:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:42,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:34:42,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:42,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:42,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:42,724 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:42,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204685469] [2021-11-03 04:34:42,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204685469] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:42,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:42,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:34:42,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723022671] [2021-11-03 04:34:42,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:34:42,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:42,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:34:42,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:34:42,727 INFO L87 Difference]: Start difference. First operand 4752 states and 7783 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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) [2021-11-03 04:34:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:44,173 INFO L93 Difference]: Finished difference Result 18850 states and 30908 transitions. [2021-11-03 04:34:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:34:44,174 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 76 [2021-11-03 04:34:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:44,216 INFO L225 Difference]: With dead ends: 18850 [2021-11-03 04:34:44,216 INFO L226 Difference]: Without dead ends: 14141 [2021-11-03 04:34:44,225 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:34:44,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14141 states. [2021-11-03 04:34:44,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14141 to 4751. [2021-11-03 04:34:44,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4751 states, 4687 states have (on average 1.6596970343503308) internal successors, (7779), 4750 states have internal predecessors, (7779), 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) [2021-11-03 04:34:44,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4751 states to 4751 states and 7779 transitions. [2021-11-03 04:34:44,670 INFO L78 Accepts]: Start accepts. Automaton has 4751 states and 7779 transitions. Word has length 76 [2021-11-03 04:34:44,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:44,671 INFO L470 AbstractCegarLoop]: Abstraction has 4751 states and 7779 transitions. [2021-11-03 04:34:44,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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) [2021-11-03 04:34:44,671 INFO L276 IsEmpty]: Start isEmpty. Operand 4751 states and 7779 transitions. [2021-11-03 04:34:44,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-03 04:34:44,673 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:44,674 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:44,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:44,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:44,899 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:44,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:44,899 INFO L85 PathProgramCache]: Analyzing trace with hash -425949644, now seen corresponding path program 1 times [2021-11-03 04:34:44,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:44,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193432060] [2021-11-03 04:34:44,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:44,901 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:44,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:44,908 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:44,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:34:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:45,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:34:45,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:45,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:45,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:45,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:45,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193432060] [2021-11-03 04:34:45,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193432060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:45,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:45,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:34:45,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099178669] [2021-11-03 04:34:45,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:34:45,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:45,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:34:45,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:34:45,972 INFO L87 Difference]: Start difference. First operand 4751 states and 7779 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2021-11-03 04:34:46,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:46,350 INFO L93 Difference]: Finished difference Result 9466 states and 15516 transitions. [2021-11-03 04:34:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:34:46,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 77 [2021-11-03 04:34:46,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:46,363 INFO L225 Difference]: With dead ends: 9466 [2021-11-03 04:34:46,364 INFO L226 Difference]: Without dead ends: 4763 [2021-11-03 04:34:46,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:34:46,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2021-11-03 04:34:46,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4751. [2021-11-03 04:34:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4751 states, 4687 states have (on average 1.6590569660763814) internal successors, (7776), 4750 states have internal predecessors, (7776), 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) [2021-11-03 04:34:46,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4751 states to 4751 states and 7776 transitions. [2021-11-03 04:34:46,759 INFO L78 Accepts]: Start accepts. Automaton has 4751 states and 7776 transitions. Word has length 77 [2021-11-03 04:34:46,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:46,759 INFO L470 AbstractCegarLoop]: Abstraction has 4751 states and 7776 transitions. [2021-11-03 04:34:46,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2021-11-03 04:34:46,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4751 states and 7776 transitions. [2021-11-03 04:34:46,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 04:34:46,762 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:46,762 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:46,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:46,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:46,979 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:46,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:46,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1807493529, now seen corresponding path program 1 times [2021-11-03 04:34:46,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:46,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958284905] [2021-11-03 04:34:46,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:46,981 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:46,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:46,982 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:47,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:34:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:47,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:34:47,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:47,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:47,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:48,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:48,137 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:48,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958284905] [2021-11-03 04:34:48,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958284905] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:48,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:48,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:34:48,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652824086] [2021-11-03 04:34:48,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:34:48,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:48,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:34:48,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:34:48,140 INFO L87 Difference]: Start difference. First operand 4751 states and 7776 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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) [2021-11-03 04:34:49,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:49,126 INFO L93 Difference]: Finished difference Result 18836 states and 30882 transitions. [2021-11-03 04:34:49,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:34:49,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 79 [2021-11-03 04:34:49,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:49,163 INFO L225 Difference]: With dead ends: 18836 [2021-11-03 04:34:49,163 INFO L226 Difference]: Without dead ends: 14137 [2021-11-03 04:34:49,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:34:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14137 states. [2021-11-03 04:34:49,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14137 to 4751. [2021-11-03 04:34:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4751 states, 4687 states have (on average 1.6584168978024323) internal successors, (7773), 4750 states have internal predecessors, (7773), 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) [2021-11-03 04:34:49,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4751 states to 4751 states and 7773 transitions. [2021-11-03 04:34:49,697 INFO L78 Accepts]: Start accepts. Automaton has 4751 states and 7773 transitions. Word has length 79 [2021-11-03 04:34:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:49,698 INFO L470 AbstractCegarLoop]: Abstraction has 4751 states and 7773 transitions. [2021-11-03 04:34:49,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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) [2021-11-03 04:34:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4751 states and 7773 transitions. [2021-11-03 04:34:49,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 04:34:49,701 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:49,701 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:49,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:49,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:49,920 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:49,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:49,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1394649758, now seen corresponding path program 1 times [2021-11-03 04:34:49,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:49,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715599016] [2021-11-03 04:34:49,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:49,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:49,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:49,923 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:49,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:34:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:50,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:34:50,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:50,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:50,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:51,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:51,045 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:51,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715599016] [2021-11-03 04:34:51,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715599016] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:51,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:51,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:34:51,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790316725] [2021-11-03 04:34:51,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:34:51,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:51,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:34:51,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:34:51,047 INFO L87 Difference]: Start difference. First operand 4751 states and 7773 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2021-11-03 04:34:51,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:51,594 INFO L93 Difference]: Finished difference Result 13877 states and 22703 transitions. [2021-11-03 04:34:51,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:34:51,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 81 [2021-11-03 04:34:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:51,612 INFO L225 Difference]: With dead ends: 13877 [2021-11-03 04:34:51,613 INFO L226 Difference]: Without dead ends: 9450 [2021-11-03 04:34:51,619 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:34:51,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9450 states. [2021-11-03 04:34:52,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9450 to 5023. [2021-11-03 04:34:52,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5023 states, 4959 states have (on average 1.6670699737850374) internal successors, (8267), 5022 states have internal predecessors, (8267), 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) [2021-11-03 04:34:52,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5023 states to 5023 states and 8267 transitions. [2021-11-03 04:34:52,082 INFO L78 Accepts]: Start accepts. Automaton has 5023 states and 8267 transitions. Word has length 81 [2021-11-03 04:34:52,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:52,084 INFO L470 AbstractCegarLoop]: Abstraction has 5023 states and 8267 transitions. [2021-11-03 04:34:52,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2021-11-03 04:34:52,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5023 states and 8267 transitions. [2021-11-03 04:34:52,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-03 04:34:52,091 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:52,091 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:52,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:52,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:52,307 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:52,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:52,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1483683343, now seen corresponding path program 1 times [2021-11-03 04:34:52,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:52,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385694206] [2021-11-03 04:34:52,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:52,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:52,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:52,309 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:52,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:34:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:53,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:34:53,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:53,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:53,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:53,561 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:53,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385694206] [2021-11-03 04:34:53,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385694206] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:53,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:53,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:34:53,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663906185] [2021-11-03 04:34:53,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:34:53,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:53,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:34:53,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:34:53,564 INFO L87 Difference]: Start difference. First operand 5023 states and 8267 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-03 04:34:54,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:54,121 INFO L93 Difference]: Finished difference Result 14581 states and 23984 transitions. [2021-11-03 04:34:54,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:34:54,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2021-11-03 04:34:54,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:54,135 INFO L225 Difference]: With dead ends: 14581 [2021-11-03 04:34:54,135 INFO L226 Difference]: Without dead ends: 9669 [2021-11-03 04:34:54,141 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:34:54,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9669 states. [2021-11-03 04:34:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9669 to 5242. [2021-11-03 04:34:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5178 states have (on average 1.6730397837002704) internal successors, (8663), 5241 states have internal predecessors, (8663), 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) [2021-11-03 04:34:54,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 8663 transitions. [2021-11-03 04:34:54,721 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 8663 transitions. Word has length 93 [2021-11-03 04:34:54,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:54,722 INFO L470 AbstractCegarLoop]: Abstraction has 5242 states and 8663 transitions. [2021-11-03 04:34:54,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-03 04:34:54,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 8663 transitions. [2021-11-03 04:34:54,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-03 04:34:54,726 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:54,727 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:54,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:54,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:54,945 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:54,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:54,946 INFO L85 PathProgramCache]: Analyzing trace with hash 664258758, now seen corresponding path program 1 times [2021-11-03 04:34:54,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:54,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321414535] [2021-11-03 04:34:54,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:54,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:54,948 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:54,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 04:34:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:55,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:34:55,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:55,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:55,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:56,178 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:56,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321414535] [2021-11-03 04:34:56,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321414535] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:56,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:56,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:34:56,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925797349] [2021-11-03 04:34:56,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:34:56,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:56,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:34:56,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:34:56,180 INFO L87 Difference]: Start difference. First operand 5242 states and 8663 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-03 04:34:56,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:56,706 INFO L93 Difference]: Finished difference Result 15268 states and 25232 transitions. [2021-11-03 04:34:56,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:34:56,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2021-11-03 04:34:56,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:56,720 INFO L225 Difference]: With dead ends: 15268 [2021-11-03 04:34:56,720 INFO L226 Difference]: Without dead ends: 10146 [2021-11-03 04:34:56,729 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:34:56,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10146 states. [2021-11-03 04:34:57,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10146 to 5719. [2021-11-03 04:34:57,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5719 states, 5655 states have (on average 1.6848806366047746) internal successors, (9528), 5718 states have internal predecessors, (9528), 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) [2021-11-03 04:34:57,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5719 states to 5719 states and 9528 transitions. [2021-11-03 04:34:57,300 INFO L78 Accepts]: Start accepts. Automaton has 5719 states and 9528 transitions. Word has length 94 [2021-11-03 04:34:57,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:57,300 INFO L470 AbstractCegarLoop]: Abstraction has 5719 states and 9528 transitions. [2021-11-03 04:34:57,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-03 04:34:57,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5719 states and 9528 transitions. [2021-11-03 04:34:57,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-03 04:34:57,304 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:57,304 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:57,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:57,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:57,509 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:34:57,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:57,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1033607357, now seen corresponding path program 1 times [2021-11-03 04:34:57,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:57,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283276301] [2021-11-03 04:34:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:57,511 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:57,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:57,512 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:57,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 04:34:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:58,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:34:58,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:58,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:58,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:58,828 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:58,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283276301] [2021-11-03 04:34:58,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283276301] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:58,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:58,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:34:58,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069479745] [2021-11-03 04:34:58,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:34:58,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:58,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:34:58,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:34:58,831 INFO L87 Difference]: Start difference. First operand 5719 states and 9528 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-03 04:34:59,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:59,471 INFO L93 Difference]: Finished difference Result 16676 states and 27795 transitions. [2021-11-03 04:34:59,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:34:59,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2021-11-03 04:34:59,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:59,485 INFO L225 Difference]: With dead ends: 16676 [2021-11-03 04:34:59,486 INFO L226 Difference]: Without dead ends: 11086 [2021-11-03 04:34:59,493 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:34:59,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11086 states. [2021-11-03 04:34:59,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11086 to 6659. [2021-11-03 04:34:59,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6659 states, 6595 states have (on average 1.7038665655799847) internal successors, (11237), 6658 states have internal predecessors, (11237), 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) [2021-11-03 04:35:00,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6659 states to 6659 states and 11237 transitions. [2021-11-03 04:35:00,010 INFO L78 Accepts]: Start accepts. Automaton has 6659 states and 11237 transitions. Word has length 95 [2021-11-03 04:35:00,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:35:00,010 INFO L470 AbstractCegarLoop]: Abstraction has 6659 states and 11237 transitions. [2021-11-03 04:35:00,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-03 04:35:00,010 INFO L276 IsEmpty]: Start isEmpty. Operand 6659 states and 11237 transitions. [2021-11-03 04:35:00,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-03 04:35:00,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:35:00,015 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:35:00,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-03 04:35:00,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:35:00,216 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:35:00,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:35:00,217 INFO L85 PathProgramCache]: Analyzing trace with hash 56951133, now seen corresponding path program 1 times [2021-11-03 04:35:00,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:35:00,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528454714] [2021-11-03 04:35:00,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:35:00,218 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:35:00,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:35:00,219 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:35:00,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 04:35:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:35:01,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:35:01,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:35:01,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:35:01,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:35:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:35:01,565 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:35:01,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528454714] [2021-11-03 04:35:01,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528454714] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:35:01,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:35:01,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:35:01,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379286458] [2021-11-03 04:35:01,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:35:01,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:35:01,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:35:01,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:35:01,568 INFO L87 Difference]: Start difference. First operand 6659 states and 11237 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-03 04:35:02,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:35:02,294 INFO L93 Difference]: Finished difference Result 19227 states and 32436 transitions. [2021-11-03 04:35:02,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:35:02,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2021-11-03 04:35:02,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:35:02,313 INFO L225 Difference]: With dead ends: 19227 [2021-11-03 04:35:02,313 INFO L226 Difference]: Without dead ends: 12732 [2021-11-03 04:35:02,321 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:35:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12732 states. [2021-11-03 04:35:02,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12732 to 8305. [2021-11-03 04:35:02,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8305 states, 8241 states have (on average 1.726246814706953) internal successors, (14226), 8304 states have internal predecessors, (14226), 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) [2021-11-03 04:35:02,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8305 states to 8305 states and 14226 transitions. [2021-11-03 04:35:02,928 INFO L78 Accepts]: Start accepts. Automaton has 8305 states and 14226 transitions. Word has length 96 [2021-11-03 04:35:02,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:35:02,929 INFO L470 AbstractCegarLoop]: Abstraction has 8305 states and 14226 transitions. [2021-11-03 04:35:02,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-03 04:35:02,929 INFO L276 IsEmpty]: Start isEmpty. Operand 8305 states and 14226 transitions. [2021-11-03 04:35:02,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-03 04:35:02,939 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:35:02,939 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:35:02,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-03 04:35:03,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:35:03,159 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:35:03,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:35:03,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1109663706, now seen corresponding path program 1 times [2021-11-03 04:35:03,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:35:03,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413632167] [2021-11-03 04:35:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:35:03,161 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:35:03,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:35:03,162 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:35:03,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 04:35:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:35:04,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:35:04,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:35:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:35:04,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:35:04,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:35:04,569 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:35:04,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413632167] [2021-11-03 04:35:04,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413632167] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:35:04,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:35:04,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:35:04,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448061783] [2021-11-03 04:35:04,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:35:04,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:35:04,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:35:04,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:35:04,571 INFO L87 Difference]: Start difference. First operand 8305 states and 14226 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-03 04:35:05,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:35:05,669 INFO L93 Difference]: Finished difference Result 23872 states and 40877 transitions. [2021-11-03 04:35:05,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:35:05,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2021-11-03 04:35:05,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:35:05,699 INFO L225 Difference]: With dead ends: 23872 [2021-11-03 04:35:05,699 INFO L226 Difference]: Without dead ends: 15766 [2021-11-03 04:35:05,710 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:35:05,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15766 states. [2021-11-03 04:35:06,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15766 to 11339. [2021-11-03 04:35:06,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11339 states, 11275 states have (on average 1.7499778270509978) internal successors, (19731), 11338 states have internal predecessors, (19731), 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) [2021-11-03 04:35:06,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11339 states to 11339 states and 19731 transitions. [2021-11-03 04:35:06,577 INFO L78 Accepts]: Start accepts. Automaton has 11339 states and 19731 transitions. Word has length 97 [2021-11-03 04:35:06,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:35:06,577 INFO L470 AbstractCegarLoop]: Abstraction has 11339 states and 19731 transitions. [2021-11-03 04:35:06,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-03 04:35:06,578 INFO L276 IsEmpty]: Start isEmpty. Operand 11339 states and 19731 transitions. [2021-11-03 04:35:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-03 04:35:06,588 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:35:06,588 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:35:06,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-03 04:35:06,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:35:06,803 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:35:06,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:35:06,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1333116814, now seen corresponding path program 1 times [2021-11-03 04:35:06,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:35:06,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044102904] [2021-11-03 04:35:06,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:35:06,804 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:35:06,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:35:06,806 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:35:06,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-03 04:35:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:35:07,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:35:07,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:35:07,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:35:07,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:35:08,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:35:08,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:35:08,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044102904] [2021-11-03 04:35:08,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044102904] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:35:08,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:35:08,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:35:08,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263514073] [2021-11-03 04:35:08,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:35:08,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:35:08,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:35:08,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:35:08,166 INFO L87 Difference]: Start difference. First operand 11339 states and 19731 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-03 04:35:09,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:35:09,589 INFO L93 Difference]: Finished difference Result 33283 states and 57953 transitions. [2021-11-03 04:35:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:35:09,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2021-11-03 04:35:09,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:35:09,625 INFO L225 Difference]: With dead ends: 33283 [2021-11-03 04:35:09,625 INFO L226 Difference]: Without dead ends: 22152 [2021-11-03 04:35:09,639 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:35:09,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22152 states. [2021-11-03 04:35:10,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22152 to 17725. [2021-11-03 04:35:10,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17725 states, 17661 states have (on average 1.7722665760715701) internal successors, (31300), 17724 states have internal predecessors, (31300), 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) [2021-11-03 04:35:10,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17725 states to 17725 states and 31300 transitions. [2021-11-03 04:35:10,776 INFO L78 Accepts]: Start accepts. Automaton has 17725 states and 31300 transitions. Word has length 98 [2021-11-03 04:35:10,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:35:10,777 INFO L470 AbstractCegarLoop]: Abstraction has 17725 states and 31300 transitions. [2021-11-03 04:35:10,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-03 04:35:10,777 INFO L276 IsEmpty]: Start isEmpty. Operand 17725 states and 31300 transitions. [2021-11-03 04:35:10,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-03 04:35:10,787 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:35:10,787 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:35:10,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-03 04:35:10,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:35:10,999 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 04:35:10,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:35:10,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1974505199, now seen corresponding path program 1 times [2021-11-03 04:35:11,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:35:11,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112815473] [2021-11-03 04:35:11,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:35:11,000 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:35:11,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:35:11,001 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:35:11,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e12dc34-1207-4e04-8bf9-960eb928ea8c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-03 04:35:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:35:11,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:35:11,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:35:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:35:12,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:35:12,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:35:12,401 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:35:12,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112815473] [2021-11-03 04:35:12,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112815473] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:35:12,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:35:12,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:35:12,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511786171] [2021-11-03 04:35:12,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:35:12,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:35:12,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:35:12,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:35:12,403 INFO L87 Difference]: Start difference. First operand 17725 states and 31300 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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)