./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE --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 8521353bcf4bae83665566564f0550ca2d5ed2f2d2c87d1236006cfbb2433fe4 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE --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 8521353bcf4bae83665566564f0550ca2d5ed2f2d2c87d1236006cfbb2433fe4 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:12:55,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:12:55,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:12:55,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:12:55,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:12:55,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:12:55,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:12:55,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:12:55,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:12:55,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:12:55,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:12:55,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:12:55,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:12:55,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:12:55,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:12:55,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:12:55,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:12:55,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:12:55,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:12:55,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:12:55,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:12:55,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:12:55,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:12:55,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:12:55,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:12:55,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:12:55,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:12:55,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:12:55,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:12:55,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:12:55,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:12:55,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:12:55,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:12:55,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:12:55,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:12:55,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:12:55,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:12:55,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:12:55,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:12:55,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:12:55,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:12:55,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 11:12:55,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:12:55,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:12:55,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:12:55,389 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:12:55,390 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:12:55,390 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:12:55,390 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 11:12:55,390 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:12:55,397 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:12:55,398 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 11:12:55,399 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 11:12:55,399 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:12:55,400 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 11:12:55,400 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 11:12:55,400 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 11:12:55,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:12:55,401 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:12:55,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 11:12:55,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:12:55,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:12:55,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:12:55,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:12:55,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:12:55,403 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:12:55,403 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:12:55,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:12:55,404 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:12:55,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:12:55,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:12:55,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:12:55,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:12:55,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:12:55,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:12:55,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:12:55,408 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 11:12:55,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 11:12:55,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:12:55,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:12:55,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:12:55,409 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_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8521353bcf4bae83665566564f0550ca2d5ed2f2d2c87d1236006cfbb2433fe4 [2021-10-24 11:12:55,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:12:55,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:12:55,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:12:55,755 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:12:55,756 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:12:55,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2021-10-24 11:12:55,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/data/383e84ebf/dfe04c1cee434c699ece42f30aea8541/FLAG5f1745642 [2021-10-24 11:12:56,496 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:12:56,497 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2021-10-24 11:12:56,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/data/383e84ebf/dfe04c1cee434c699ece42f30aea8541/FLAG5f1745642 [2021-10-24 11:12:56,799 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/data/383e84ebf/dfe04c1cee434c699ece42f30aea8541 [2021-10-24 11:12:56,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:12:56,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:12:56,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:12:56,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:12:56,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:12:56,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:56" (1/1) ... [2021-10-24 11:12:56,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a27eba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:56, skipping insertion in model container [2021-10-24 11:12:56,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:56" (1/1) ... [2021-10-24 11:12:56,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:12:56,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:12:57,181 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_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[6162,6175] [2021-10-24 11:12:57,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:12:57,319 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) [2021-10-24 11:12:57,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@223faa6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:57, skipping insertion in model container [2021-10-24 11:12:57,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:12:57,321 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 11:12:57,324 INFO L168 Benchmark]: Toolchain (without parser) took 517.13 ms. Allocated memory is still 113.2 MB. Free memory was 70.1 MB in the beginning and 84.8 MB in the end (delta: -14.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:12:57,326 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 113.2 MB. Free memory is still 87.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:12:57,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.13 ms. Allocated memory is still 113.2 MB. Free memory was 69.9 MB in the beginning and 85.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:12:57,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 113.2 MB. Free memory is still 87.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 511.13 ms. Allocated memory is still 113.2 MB. Free memory was 69.9 MB in the beginning and 85.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 621]: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:12:59,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:12:59,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:13:00,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:13:00,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:13:00,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:13:00,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:13:00,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:13:00,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:13:00,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:13:00,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:13:00,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:13:00,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:13:00,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:13:00,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:13:00,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:13:00,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:13:00,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:13:00,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:13:00,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:13:00,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:13:00,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:13:00,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:13:00,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:13:00,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:13:00,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:13:00,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:13:00,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:13:00,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:13:00,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:13:00,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:13:00,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:13:00,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:13:00,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:13:00,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:13:00,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:13:00,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:13:00,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:13:00,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:13:00,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:13:00,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:13:00,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 11:13:00,171 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:13:00,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:13:00,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:13:00,172 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:13:00,172 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:13:00,172 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:13:00,173 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:13:00,173 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:13:00,173 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:13:00,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:13:00,174 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:13:00,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:13:00,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:13:00,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:13:00,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:13:00,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:13:00,175 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:13:00,175 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 11:13:00,175 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 11:13:00,175 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:13:00,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:13:00,176 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:13:00,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:13:00,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:13:00,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 11:13:00,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:13:00,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:13:00,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:13:00,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:13:00,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:13:00,178 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 11:13:00,178 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 11:13:00,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:13:00,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:13:00,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:13:00,179 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_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8521353bcf4bae83665566564f0550ca2d5ed2f2d2c87d1236006cfbb2433fe4 [2021-10-24 11:13:00,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:13:00,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:13:00,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:13:00,612 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:13:00,613 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:13:00,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2021-10-24 11:13:00,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/data/639f4f4ae/8cf73930de3941349413a201f9f13f2f/FLAG250876be3 [2021-10-24 11:13:01,324 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:13:01,324 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2021-10-24 11:13:01,354 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/data/639f4f4ae/8cf73930de3941349413a201f9f13f2f/FLAG250876be3 [2021-10-24 11:13:01,590 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/data/639f4f4ae/8cf73930de3941349413a201f9f13f2f [2021-10-24 11:13:01,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:13:01,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:13:01,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:13:01,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:13:01,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:13:01,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:13:01" (1/1) ... [2021-10-24 11:13:01,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92eb90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:01, skipping insertion in model container [2021-10-24 11:13:01,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:13:01" (1/1) ... [2021-10-24 11:13:01,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:13:01,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:13:01,888 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_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[6162,6175] [2021-10-24 11:13:02,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:13:02,065 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 11:13:02,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:13:02,132 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_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[6162,6175] [2021-10-24 11:13:02,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:13:02,206 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:13:02,242 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_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[6162,6175] [2021-10-24 11:13:02,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:13:02,310 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:13:02,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02 WrapperNode [2021-10-24 11:13:02,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:13:02,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:13:02,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:13:02,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:13:02,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (1/1) ... [2021-10-24 11:13:02,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (1/1) ... [2021-10-24 11:13:02,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:13:02,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:13:02,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:13:02,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:13:02,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (1/1) ... [2021-10-24 11:13:02,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (1/1) ... [2021-10-24 11:13:02,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (1/1) ... [2021-10-24 11:13:02,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (1/1) ... [2021-10-24 11:13:02,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (1/1) ... [2021-10-24 11:13:02,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (1/1) ... [2021-10-24 11:13:02,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (1/1) ... [2021-10-24 11:13:02,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:13:02,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:13:02,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:13:02,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:13:02,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (1/1) ... [2021-10-24 11:13:02,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:13:02,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:13:02,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:13:02,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:13:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:13:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 11:13:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:13:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:13:05,047 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:13:05,047 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-24 11:13:05,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:13:05 BoogieIcfgContainer [2021-10-24 11:13:05,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:13:05,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:13:05,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:13:05,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:13:05,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:13:01" (1/3) ... [2021-10-24 11:13:05,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb42d0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:13:05, skipping insertion in model container [2021-10-24 11:13:05,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:13:02" (2/3) ... [2021-10-24 11:13:05,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb42d0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:13:05, skipping insertion in model container [2021-10-24 11:13:05,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:13:05" (3/3) ... [2021-10-24 11:13:05,061 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2021-10-24 11:13:05,079 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:13:05,079 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 11:13:05,141 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:13:05,148 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 [2021-10-24 11:13:05,149 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 11:13:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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) [2021-10-24 11:13:05,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 11:13:05,177 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:05,178 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:13:05,179 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:05,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:05,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1794729554, now seen corresponding path program 1 times [2021-10-24 11:13:05,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:05,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043033478] [2021-10-24 11:13:05,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:05,204 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:05,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:05,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:05,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 11:13:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:13:05,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 11:13:05,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:05,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:05,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:05,728 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:05,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043033478] [2021-10-24 11:13:05,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043033478] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:05,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:05,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 11:13:05,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227864658] [2021-10-24 11:13:05,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 11:13:05,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:05,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 11:13:05,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:13:05,771 INFO L87 Difference]: Start difference. First operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:13:05,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:05,824 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2021-10-24 11:13:05,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 11:13:05,826 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-24 11:13:05,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:05,846 INFO L225 Difference]: With dead ends: 232 [2021-10-24 11:13:05,847 INFO L226 Difference]: Without dead ends: 115 [2021-10-24 11:13:05,850 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:13:05,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-24 11:13:05,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-24 11:13:05,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 112 states have (on average 1.5) internal successors, (168), 114 states have internal predecessors, (168), 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) [2021-10-24 11:13:05,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2021-10-24 11:13:05,925 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2021-10-24 11:13:05,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:05,925 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2021-10-24 11:13:05,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:13:05,927 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2021-10-24 11:13:05,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 11:13:05,933 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:05,933 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:13:05,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:06,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:06,147 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:06,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:06,149 INFO L82 PathProgramCache]: Analyzing trace with hash 529368141, now seen corresponding path program 1 times [2021-10-24 11:13:06,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:06,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599591882] [2021-10-24 11:13:06,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:06,151 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:06,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:06,153 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:06,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 11:13:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:13:06,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:13:06,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:06,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:06,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:06,562 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:06,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599591882] [2021-10-24 11:13:06,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599591882] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:06,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:06,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 11:13:06,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165301837] [2021-10-24 11:13:06,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:13:06,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:06,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:13:06,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:13:06,576 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-10-24 11:13:06,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:06,612 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2021-10-24 11:13:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:13:06,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 17 [2021-10-24 11:13:06,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:06,616 INFO L225 Difference]: With dead ends: 115 [2021-10-24 11:13:06,616 INFO L226 Difference]: Without dead ends: 49 [2021-10-24 11:13:06,618 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:13:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-24 11:13:06,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-24 11:13:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 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) [2021-10-24 11:13:06,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-24 11:13:06,636 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2021-10-24 11:13:06,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:06,636 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-24 11:13:06,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-10-24 11:13:06,638 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-24 11:13:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 11:13:06,640 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:06,647 INFO L512 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] [2021-10-24 11:13:06,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:06,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:06,873 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:06,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:06,874 INFO L82 PathProgramCache]: Analyzing trace with hash -2061312917, now seen corresponding path program 1 times [2021-10-24 11:13:06,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:06,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027325315] [2021-10-24 11:13:06,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:06,875 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:06,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:06,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:06,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 11:13:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:13:07,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:13:07,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:07,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:07,349 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:07,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027325315] [2021-10-24 11:13:07,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027325315] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:07,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:07,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 11:13:07,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392643881] [2021-10-24 11:13:07,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:13:07,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:13:07,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:13:07,352 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-24 11:13:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:07,438 INFO L93 Difference]: Finished difference Result 158 states and 235 transitions. [2021-10-24 11:13:07,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 11:13:07,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 22 [2021-10-24 11:13:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:07,441 INFO L225 Difference]: With dead ends: 158 [2021-10-24 11:13:07,441 INFO L226 Difference]: Without dead ends: 115 [2021-10-24 11:13:07,442 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:13:07,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-24 11:13:07,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 68. [2021-10-24 11:13:07,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.492537313432836) internal successors, (100), 67 states have internal predecessors, (100), 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) [2021-10-24 11:13:07,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions. [2021-10-24 11:13:07,455 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 22 [2021-10-24 11:13:07,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:07,456 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 100 transitions. [2021-10-24 11:13:07,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-24 11:13:07,456 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2021-10-24 11:13:07,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 11:13:07,458 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:07,458 INFO L512 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] [2021-10-24 11:13:07,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:07,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:07,673 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:07,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:07,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1499976397, now seen corresponding path program 1 times [2021-10-24 11:13:07,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:07,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288147743] [2021-10-24 11:13:07,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:07,675 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:07,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:07,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:07,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 11:13:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:13:07,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:13:07,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:08,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:08,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:08,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:08,163 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:08,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288147743] [2021-10-24 11:13:08,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288147743] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:08,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:08,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 11:13:08,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806028995] [2021-10-24 11:13:08,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 11:13:08,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:08,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 11:13:08,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:13:08,168 INFO L87 Difference]: Start difference. First operand 68 states and 100 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-24 11:13:08,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:08,282 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2021-10-24 11:13:08,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:13:08,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-10-24 11:13:08,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:08,286 INFO L225 Difference]: With dead ends: 151 [2021-10-24 11:13:08,286 INFO L226 Difference]: Without dead ends: 89 [2021-10-24 11:13:08,287 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:13:08,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-24 11:13:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2021-10-24 11:13:08,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.441860465116279) internal successors, (124), 86 states have internal predecessors, (124), 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) [2021-10-24 11:13:08,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2021-10-24 11:13:08,305 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 24 [2021-10-24 11:13:08,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:08,305 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2021-10-24 11:13:08,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-24 11:13:08,305 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2021-10-24 11:13:08,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 11:13:08,308 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:08,308 INFO L512 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] [2021-10-24 11:13:08,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:08,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:08,530 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:08,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1678878848, now seen corresponding path program 1 times [2021-10-24 11:13:08,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:08,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704595700] [2021-10-24 11:13:08,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:08,532 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:08,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:08,534 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:08,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 11:13:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:13:08,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 11:13:08,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:08,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:08,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:09,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:09,065 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:09,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704595700] [2021-10-24 11:13:09,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704595700] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:09,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:09,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 11:13:09,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448946973] [2021-10-24 11:13:09,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 11:13:09,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:09,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 11:13:09,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 11:13:09,073 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-24 11:13:09,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:09,205 INFO L93 Difference]: Finished difference Result 445 states and 650 transitions. [2021-10-24 11:13:09,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 11:13:09,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2021-10-24 11:13:09,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:09,209 INFO L225 Difference]: With dead ends: 445 [2021-10-24 11:13:09,209 INFO L226 Difference]: Without dead ends: 364 [2021-10-24 11:13:09,211 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 51.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 11:13:09,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-10-24 11:13:09,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 160. [2021-10-24 11:13:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.421383647798742) internal successors, (226), 159 states have internal predecessors, (226), 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) [2021-10-24 11:13:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 226 transitions. [2021-10-24 11:13:09,244 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 226 transitions. Word has length 25 [2021-10-24 11:13:09,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:09,244 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 226 transitions. [2021-10-24 11:13:09,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-24 11:13:09,245 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 226 transitions. [2021-10-24 11:13:09,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 11:13:09,246 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:09,246 INFO L512 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] [2021-10-24 11:13:09,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:09,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:09,470 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:09,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:09,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1475071754, now seen corresponding path program 1 times [2021-10-24 11:13:09,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:09,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132248264] [2021-10-24 11:13:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:09,472 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:09,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:09,496 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:09,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 11:13:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:13:09,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 11:13:09,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:09,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:09,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:09,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:09,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:09,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132248264] [2021-10-24 11:13:09,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132248264] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:09,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:09,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 11:13:09,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147246233] [2021-10-24 11:13:09,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 11:13:09,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:09,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 11:13:09,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 11:13:09,965 INFO L87 Difference]: Start difference. First operand 160 states and 226 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-10-24 11:13:10,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:10,194 INFO L93 Difference]: Finished difference Result 448 states and 637 transitions. [2021-10-24 11:13:10,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 11:13:10,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2021-10-24 11:13:10,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:10,198 INFO L225 Difference]: With dead ends: 448 [2021-10-24 11:13:10,199 INFO L226 Difference]: Without dead ends: 446 [2021-10-24 11:13:10,200 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 54.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 11:13:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-10-24 11:13:10,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 160. [2021-10-24 11:13:10,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.4088050314465408) internal successors, (224), 159 states have internal predecessors, (224), 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) [2021-10-24 11:13:10,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 224 transitions. [2021-10-24 11:13:10,245 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 224 transitions. Word has length 26 [2021-10-24 11:13:10,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:10,246 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 224 transitions. [2021-10-24 11:13:10,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-10-24 11:13:10,247 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 224 transitions. [2021-10-24 11:13:10,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-24 11:13:10,256 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:10,256 INFO L512 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] [2021-10-24 11:13:10,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:10,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:10,469 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:10,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:10,469 INFO L82 PathProgramCache]: Analyzing trace with hash 317568404, now seen corresponding path program 1 times [2021-10-24 11:13:10,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:10,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583312704] [2021-10-24 11:13:10,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:10,472 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:10,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:10,474 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:10,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 11:13:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:13:10,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 11:13:10,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:10,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:10,949 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:10,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583312704] [2021-10-24 11:13:10,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583312704] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:10,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:10,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 11:13:10,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167731782] [2021-10-24 11:13:10,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 11:13:10,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:10,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 11:13:10,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 11:13:10,952 INFO L87 Difference]: Start difference. First operand 160 states and 224 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-24 11:13:11,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:11,066 INFO L93 Difference]: Finished difference Result 476 states and 660 transitions. [2021-10-24 11:13:11,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 11:13:11,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-10-24 11:13:11,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:11,070 INFO L225 Difference]: With dead ends: 476 [2021-10-24 11:13:11,070 INFO L226 Difference]: Without dead ends: 322 [2021-10-24 11:13:11,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 11:13:11,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-10-24 11:13:11,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 172. [2021-10-24 11:13:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.3801169590643274) internal successors, (236), 171 states have internal predecessors, (236), 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) [2021-10-24 11:13:11,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 236 transitions. [2021-10-24 11:13:11,101 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 236 transitions. Word has length 31 [2021-10-24 11:13:11,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:11,101 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 236 transitions. [2021-10-24 11:13:11,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-24 11:13:11,102 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 236 transitions. [2021-10-24 11:13:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-24 11:13:11,103 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:11,103 INFO L512 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] [2021-10-24 11:13:11,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:11,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:11,318 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:11,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:11,319 INFO L82 PathProgramCache]: Analyzing trace with hash -75458606, now seen corresponding path program 1 times [2021-10-24 11:13:11,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:11,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041917818] [2021-10-24 11:13:11,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:11,320 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:11,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:11,321 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:11,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 11:13:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:13:11,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 11:13:11,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:11,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:11,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:11,835 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:11,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041917818] [2021-10-24 11:13:11,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041917818] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:11,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:11,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 11:13:11,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286858228] [2021-10-24 11:13:11,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 11:13:11,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:11,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 11:13:11,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 11:13:11,839 INFO L87 Difference]: Start difference. First operand 172 states and 236 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-24 11:13:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:11,953 INFO L93 Difference]: Finished difference Result 510 states and 694 transitions. [2021-10-24 11:13:11,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 11:13:11,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 31 [2021-10-24 11:13:11,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:11,957 INFO L225 Difference]: With dead ends: 510 [2021-10-24 11:13:11,957 INFO L226 Difference]: Without dead ends: 344 [2021-10-24 11:13:11,960 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 33.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 11:13:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-10-24 11:13:11,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 180. [2021-10-24 11:13:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.3631284916201116) internal successors, (244), 179 states have internal predecessors, (244), 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) [2021-10-24 11:13:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 244 transitions. [2021-10-24 11:13:11,991 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 244 transitions. Word has length 31 [2021-10-24 11:13:11,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:11,991 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 244 transitions. [2021-10-24 11:13:11,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-24 11:13:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 244 transitions. [2021-10-24 11:13:11,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-24 11:13:11,993 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:11,993 INFO L512 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] [2021-10-24 11:13:12,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:12,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:12,209 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:12,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:12,210 INFO L82 PathProgramCache]: Analyzing trace with hash 182706832, now seen corresponding path program 1 times [2021-10-24 11:13:12,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:12,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498244569] [2021-10-24 11:13:12,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:12,210 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:12,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:12,211 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:12,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 11:13:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:13:12,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:13:12,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:12,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:12,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:12,760 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:12,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498244569] [2021-10-24 11:13:12,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498244569] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:12,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:12,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 11:13:12,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976060029] [2021-10-24 11:13:12,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:13:12,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:12,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:13:12,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:13:12,763 INFO L87 Difference]: Start difference. First operand 180 states and 244 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-10-24 11:13:12,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:12,880 INFO L93 Difference]: Finished difference Result 588 states and 800 transitions. [2021-10-24 11:13:12,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 11:13:12,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 31 [2021-10-24 11:13:12,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:12,884 INFO L225 Difference]: With dead ends: 588 [2021-10-24 11:13:12,884 INFO L226 Difference]: Without dead ends: 414 [2021-10-24 11:13:12,885 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:13:12,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-10-24 11:13:12,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 324. [2021-10-24 11:13:12,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.346749226006192) internal successors, (435), 323 states have internal predecessors, (435), 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) [2021-10-24 11:13:12,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 435 transitions. [2021-10-24 11:13:12,940 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 435 transitions. Word has length 31 [2021-10-24 11:13:12,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:12,940 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 435 transitions. [2021-10-24 11:13:12,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-10-24 11:13:12,941 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 435 transitions. [2021-10-24 11:13:12,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-24 11:13:12,945 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:12,945 INFO L512 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] [2021-10-24 11:13:12,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:13,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:13,164 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:13,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:13,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1930053038, now seen corresponding path program 1 times [2021-10-24 11:13:13,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:13,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247286511] [2021-10-24 11:13:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:13,165 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:13,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:13,166 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:13,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-24 11:13:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:13:14,894 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 11:13:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:13:16,771 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 11:13:16,771 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 11:13:16,773 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:13:16,775 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:13:16,775 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:13:16,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:16,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:17,003 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:13:17,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:13:17 BoogieIcfgContainer [2021-10-24 11:13:17,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:13:17,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:13:17,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:13:17,199 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:13:17,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:13:05" (3/4) ... [2021-10-24 11:13:17,202 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 11:13:17,345 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 11:13:17,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:13:17,347 INFO L168 Benchmark]: Toolchain (without parser) took 15751.50 ms. Allocated memory was 62.9 MB in the beginning and 100.7 MB in the end (delta: 37.7 MB). Free memory was 42.5 MB in the beginning and 43.7 MB in the end (delta: -1.2 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:17,348 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:13:17,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.74 ms. Allocated memory is still 62.9 MB. Free memory was 42.4 MB in the beginning and 33.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:17,349 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.30 ms. Allocated memory is still 62.9 MB. Free memory was 33.1 MB in the beginning and 29.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:17,349 INFO L168 Benchmark]: Boogie Preprocessor took 65.25 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 29.5 MB in the beginning and 65.3 MB in the end (delta: -35.8 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:17,350 INFO L168 Benchmark]: RCFGBuilder took 2535.13 ms. Allocated memory is still 83.9 MB. Free memory was 65.3 MB in the beginning and 37.0 MB in the end (delta: 28.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:17,351 INFO L168 Benchmark]: TraceAbstraction took 12146.00 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 36.5 MB in the beginning and 56.3 MB in the end (delta: -19.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:13:17,351 INFO L168 Benchmark]: Witness Printer took 146.40 ms. Allocated memory is still 100.7 MB. Free memory was 56.3 MB in the beginning and 43.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:17,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 716.74 ms. Allocated memory is still 62.9 MB. Free memory was 42.4 MB in the beginning and 33.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 134.30 ms. Allocated memory is still 62.9 MB. Free memory was 33.1 MB in the beginning and 29.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.25 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 29.5 MB in the beginning and 65.3 MB in the end (delta: -35.8 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2535.13 ms. Allocated memory is still 83.9 MB. Free memory was 65.3 MB in the beginning and 37.0 MB in the end (delta: 28.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12146.00 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 36.5 MB in the beginning and 56.3 MB in the end (delta: -19.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 146.40 ms. Allocated memory is still 100.7 MB. Free memory was 56.3 MB in the beginning and 43.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 393]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L468] int cleanupTimeShifts = 4; [L762] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L544] int retValue_acc ; [L545] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L985] int retValue_acc ; [L988] retValue_acc = 1 [L989] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L551] tmp = valid_product() [L553] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] int splverifierCounter ; [L401] int tmp ; [L402] int tmp___0 ; [L403] int tmp___1 ; [L404] int tmp___2 ; [L407] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L409] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L411] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] tmp = __VERIFIER_nondet_int() [L419] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L76] COND TRUE waterLevel < 2 [L77] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L427] tmp___0 = __VERIFIER_nondet_int() [L429] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L88] COND FALSE !(\read(methaneLevelCritical)) [L91] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L437] tmp___2 = __VERIFIER_nondet_int() [L439] COND TRUE \read(tmp___2) [L384] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L176] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND TRUE \read(systemActive) [L231] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L234] COND FALSE !(\read(pumpRunning)) [L205] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L208] COND TRUE ! pumpRunning [L328] int retValue_acc ; [L329] int tmp ; [L330] int tmp___0 ; [L138] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L141] COND FALSE !(waterLevel < 2) [L145] retValue_acc = 0 [L146] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] tmp = isHighWaterSensorDry() [L336] COND FALSE !(\read(tmp)) [L339] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L341] retValue_acc = tmp___0 [L342] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L210] tmp = isHighWaterLevel() [L212] COND TRUE \read(tmp) [L259] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L568] int tmp ; [L569] int tmp___0 ; [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L573] tmp = isMethaneLevelCritical() [L575] COND TRUE \read(tmp) [L283] int retValue_acc ; [L286] retValue_acc = pumpRunning [L287] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L577] tmp___0 = isPumpRunning() [L579] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L393] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 393]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 393]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 11863.3ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 41.1ms, AutomataDifference: 1107.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 890 SDtfs, 1243 SDslu, 1416 SDs, 0 SdLazy, 170 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 345.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 207.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=9, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 296.7ms AutomataMinimizationTime, 9 MinimizatonAttempts, 943 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 303.9ms SsaConstructionTime, 2851.7ms SatisfiabilityAnalysisTime, 1929.0ms InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 672 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1815 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 11:13:17,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7ac2c0-a7b4-44a2-979c-0a01ac57d1a2/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...