./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan --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 64b6967f526946e3373ac9378676a7e29d538a50 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan --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 64b6967f526946e3373ac9378676a7e29d538a50 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-22 12:47:50,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:47:50,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:47:50,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:47:50,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:47:50,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:47:50,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:47:50,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:47:50,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:47:50,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:47:50,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:47:50,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:47:50,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:47:50,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:47:50,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:47:50,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:47:50,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:47:50,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:47:50,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:47:50,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:47:50,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:47:50,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:47:50,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:47:50,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:47:50,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:47:50,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:47:50,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:47:50,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:47:50,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:47:50,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:47:50,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:47:50,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:47:50,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:47:50,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:47:50,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:47:50,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:47:50,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:47:50,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:47:50,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:47:50,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:47:50,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:47:50,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:47:50,309 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:47:50,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:47:50,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:47:50,311 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:47:50,312 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:47:50,312 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:47:50,312 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:47:50,312 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:47:50,313 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:47:50,313 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:47:50,314 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:47:50,314 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:47:50,315 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:47:50,315 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:47:50,315 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:47:50,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:47:50,316 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:47:50,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:47:50,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:47:50,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:47:50,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:47:50,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:47:50,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:47:50,328 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:47:50,328 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:47:50,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:47:50,329 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:47:50,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:47:50,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:47:50,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:47:50,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:47:50,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:47:50,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:47:50,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:47:50,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:47:50,331 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:47:50,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:47:50,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:47:50,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:47:50,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:47:50,332 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-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b6967f526946e3373ac9378676a7e29d538a50 [2020-11-22 12:47:50,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:47:50,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:47:50,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:47:50,652 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:47:50,653 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:47:50,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2020-11-22 12:47:50,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/data/74d2941cd/7ece347a7c6b44a596b4157c86578865/FLAG5dbf2fbe1 [2020-11-22 12:47:51,311 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:47:51,312 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2020-11-22 12:47:51,342 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/data/74d2941cd/7ece347a7c6b44a596b4157c86578865/FLAG5dbf2fbe1 [2020-11-22 12:47:51,633 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/data/74d2941cd/7ece347a7c6b44a596b4157c86578865 [2020-11-22 12:47:51,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:47:51,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:47:51,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:47:51,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:47:51,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:47:51,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:47:51" (1/1) ... [2020-11-22 12:47:51,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c39a533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:51, skipping insertion in model container [2020-11-22 12:47:51,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:47:51" (1/1) ... [2020-11-22 12:47:51,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:47:51,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:47:52,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:47:52,049 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) [2020-11-22 12:47:52,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@32e54d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:52, skipping insertion in model container [2020-11-22 12:47:52,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:47:52,051 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:47:52,053 INFO L168 Benchmark]: Toolchain (without parser) took 415.22 ms. Allocated memory is still 102.8 MB. Free memory was 82.1 MB in the beginning and 68.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:47:52,053 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 83.9 MB. Free memory is still 61.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:47:52,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.48 ms. Allocated memory is still 102.8 MB. Free memory was 81.8 MB in the beginning and 68.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:47:52,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 83.9 MB. Free memory is still 61.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 413.48 ms. Allocated memory is still 102.8 MB. Free memory was 81.8 MB in the beginning and 68.3 MB in the end (delta: 13.4 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: 112]: 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 0.2.0-a4ecdab [2020-11-22 12:47:54,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:47:54,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:47:54,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:47:54,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:47:54,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:47:54,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:47:54,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:47:54,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:47:54,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:47:54,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:47:54,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:47:54,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:47:54,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:47:54,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:47:54,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:47:54,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:47:54,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:47:54,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:47:54,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:47:54,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:47:54,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:47:54,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:47:54,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:47:54,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:47:54,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:47:54,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:47:54,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:47:54,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:47:54,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:47:54,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:47:54,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:47:54,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:47:54,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:47:54,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:47:54,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:47:54,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:47:54,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:47:54,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:47:54,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:47:54,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:47:54,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:47:54,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:47:54,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:47:54,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:47:54,434 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:47:54,434 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:47:54,434 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:47:54,434 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:47:54,434 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:47:54,435 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:47:54,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:47:54,437 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:47:54,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:47:54,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:47:54,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:47:54,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:47:54,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:47:54,438 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:47:54,438 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:47:54,439 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:47:54,439 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:47:54,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:47:54,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:47:54,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:47:54,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:47:54,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:47:54,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:47:54,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:47:54,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:47:54,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:47:54,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:47:54,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:47:54,441 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:47:54,441 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:47:54,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:47:54,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:47:54,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:47:54,442 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-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b6967f526946e3373ac9378676a7e29d538a50 [2020-11-22 12:47:54,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:47:54,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:47:54,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:47:54,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:47:54,923 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:47:54,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2020-11-22 12:47:55,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/data/d9365e808/4cb62734ac1a48049917d53c0e9dc8ee/FLAG1021ce8ea [2020-11-22 12:47:55,710 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:47:55,718 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2020-11-22 12:47:55,738 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/data/d9365e808/4cb62734ac1a48049917d53c0e9dc8ee/FLAG1021ce8ea [2020-11-22 12:47:55,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/data/d9365e808/4cb62734ac1a48049917d53c0e9dc8ee [2020-11-22 12:47:55,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:47:55,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:47:55,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:47:55,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:47:55,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:47:55,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:47:55" (1/1) ... [2020-11-22 12:47:55,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67389721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:55, skipping insertion in model container [2020-11-22 12:47:55,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:47:55" (1/1) ... [2020-11-22 12:47:55,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:47:55,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:47:56,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:47:56,307 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:47:56,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:47:56,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:47:56,475 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:47:56,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:47:56,660 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:47:56,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56 WrapperNode [2020-11-22 12:47:56,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:47:56,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:47:56,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:47:56,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:47:56,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (1/1) ... [2020-11-22 12:47:56,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (1/1) ... [2020-11-22 12:47:56,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:47:56,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:47:56,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:47:56,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:47:56,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (1/1) ... [2020-11-22 12:47:56,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (1/1) ... [2020-11-22 12:47:56,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (1/1) ... [2020-11-22 12:47:56,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (1/1) ... [2020-11-22 12:47:56,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (1/1) ... [2020-11-22 12:47:56,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (1/1) ... [2020-11-22 12:47:56,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (1/1) ... [2020-11-22 12:47:56,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:47:56,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:47:56,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:47:56,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:47:56,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:47:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:47:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:47:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:47:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:47:59,916 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:47:59,916 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-22 12:47:59,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:47:59 BoogieIcfgContainer [2020-11-22 12:47:59,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:47:59,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:47:59,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:47:59,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:47:59,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:47:55" (1/3) ... [2020-11-22 12:47:59,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d33f323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:47:59, skipping insertion in model container [2020-11-22 12:47:59,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:56" (2/3) ... [2020-11-22 12:47:59,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d33f323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:47:59, skipping insertion in model container [2020-11-22 12:47:59,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:47:59" (3/3) ... [2020-11-22 12:47:59,935 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2020-11-22 12:47:59,948 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:47:59,954 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:47:59,969 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:48:00,005 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:48:00,005 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:48:00,006 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:48:00,006 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:48:00,006 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:48:00,006 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:48:00,006 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:48:00,006 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:48:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-11-22 12:48:00,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 12:48:00,034 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:00,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:00,035 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:00,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:00,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1546561908, now seen corresponding path program 1 times [2020-11-22 12:48:00,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:00,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272044123] [2020-11-22 12:48:00,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:00,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:48:00,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:00,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:00,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:00,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272044123] [2020-11-22 12:48:00,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:00,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:48:00,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158202440] [2020-11-22 12:48:00,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:48:00,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:00,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:48:00,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:48:00,385 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 2 states. [2020-11-22 12:48:00,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:00,439 INFO L93 Difference]: Finished difference Result 178 states and 267 transitions. [2020-11-22 12:48:00,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:48:00,441 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 12:48:00,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:00,453 INFO L225 Difference]: With dead ends: 178 [2020-11-22 12:48:00,453 INFO L226 Difference]: Without dead ends: 87 [2020-11-22 12:48:00,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:48:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-22 12:48:00,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-22 12:48:00,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-22 12:48:00,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2020-11-22 12:48:00,505 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 18 [2020-11-22 12:48:00,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:00,505 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2020-11-22 12:48:00,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:48:00,506 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2020-11-22 12:48:00,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 12:48:00,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:00,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:00,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:48:00,734 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:00,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:00,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1904283421, now seen corresponding path program 1 times [2020-11-22 12:48:00,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:00,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362681364] [2020-11-22 12:48:00,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:00,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:48:00,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:01,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:01,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:01,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362681364] [2020-11-22 12:48:01,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:01,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:48:01,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79001909] [2020-11-22 12:48:01,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:48:01,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:01,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:48:01,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:48:01,105 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 4 states. [2020-11-22 12:48:01,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:01,124 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2020-11-22 12:48:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:48:01,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 12:48:01,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:01,130 INFO L225 Difference]: With dead ends: 87 [2020-11-22 12:48:01,130 INFO L226 Difference]: Without dead ends: 39 [2020-11-22 12:48:01,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:48:01,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-22 12:48:01,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-22 12:48:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-22 12:48:01,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-11-22 12:48:01,151 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 19 [2020-11-22 12:48:01,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:01,151 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-11-22 12:48:01,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:48:01,151 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-11-22 12:48:01,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 12:48:01,153 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:01,153 INFO L422 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] [2020-11-22 12:48:01,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:48:01,354 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:01,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:01,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1959799754, now seen corresponding path program 1 times [2020-11-22 12:48:01,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:01,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198479388] [2020-11-22 12:48:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:01,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:48:01,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:01,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:01,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:01,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198479388] [2020-11-22 12:48:01,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:01,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:48:01,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261434358] [2020-11-22 12:48:01,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:48:01,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:01,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:48:01,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:48:01,630 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 4 states. [2020-11-22 12:48:01,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:01,683 INFO L93 Difference]: Finished difference Result 71 states and 103 transitions. [2020-11-22 12:48:01,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:48:01,684 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 12:48:01,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:01,685 INFO L225 Difference]: With dead ends: 71 [2020-11-22 12:48:01,686 INFO L226 Difference]: Without dead ends: 39 [2020-11-22 12:48:01,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:48:01,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-22 12:48:01,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-22 12:48:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-22 12:48:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-11-22 12:48:01,704 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 24 [2020-11-22 12:48:01,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:01,705 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-11-22 12:48:01,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:48:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-11-22 12:48:01,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:48:01,708 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:01,708 INFO L422 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] [2020-11-22 12:48:01,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:48:01,934 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:01,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:01,934 INFO L82 PathProgramCache]: Analyzing trace with hash -2070782503, now seen corresponding path program 1 times [2020-11-22 12:48:01,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:01,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924155589] [2020-11-22 12:48:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:02,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:48:02,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:02,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:02,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924155589] [2020-11-22 12:48:02,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:02,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:48:02,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388683569] [2020-11-22 12:48:02,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:48:02,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:02,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:48:02,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:48:02,204 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 3 states. [2020-11-22 12:48:02,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:02,285 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2020-11-22 12:48:02,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:48:02,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-22 12:48:02,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:02,287 INFO L225 Difference]: With dead ends: 93 [2020-11-22 12:48:02,287 INFO L226 Difference]: Without dead ends: 61 [2020-11-22 12:48:02,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:48:02,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-22 12:48:02,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-11-22 12:48:02,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-22 12:48:02,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2020-11-22 12:48:02,298 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 25 [2020-11-22 12:48:02,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:02,299 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2020-11-22 12:48:02,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:48:02,299 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2020-11-22 12:48:02,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 12:48:02,301 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:02,301 INFO L422 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] [2020-11-22 12:48:02,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:48:02,521 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:02,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:02,521 INFO L82 PathProgramCache]: Analyzing trace with hash -576163675, now seen corresponding path program 1 times [2020-11-22 12:48:02,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:02,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604930023] [2020-11-22 12:48:02,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:02,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:48:02,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:02,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:02,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:02,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604930023] [2020-11-22 12:48:02,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:02,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 12:48:02,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215599289] [2020-11-22 12:48:02,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:48:02,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:02,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:48:02,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:48:02,842 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand 5 states. [2020-11-22 12:48:03,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:03,030 INFO L93 Difference]: Finished difference Result 271 states and 394 transitions. [2020-11-22 12:48:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 12:48:03,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-22 12:48:03,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:03,035 INFO L225 Difference]: With dead ends: 271 [2020-11-22 12:48:03,035 INFO L226 Difference]: Without dead ends: 219 [2020-11-22 12:48:03,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:48:03,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-22 12:48:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 103. [2020-11-22 12:48:03,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-22 12:48:03,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2020-11-22 12:48:03,070 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 31 [2020-11-22 12:48:03,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:03,071 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2020-11-22 12:48:03,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:48:03,071 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2020-11-22 12:48:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:48:03,072 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:03,072 INFO L422 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] [2020-11-22 12:48:03,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:48:03,273 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:03,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1086399261, now seen corresponding path program 1 times [2020-11-22 12:48:03,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:03,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081805201] [2020-11-22 12:48:03,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:03,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:48:03,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:03,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:03,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081805201] [2020-11-22 12:48:03,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:03,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:48:03,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831487574] [2020-11-22 12:48:03,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:48:03,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:03,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:48:03,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:48:03,529 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand 5 states. [2020-11-22 12:48:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:03,700 INFO L93 Difference]: Finished difference Result 376 states and 533 transitions. [2020-11-22 12:48:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 12:48:03,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-22 12:48:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:03,702 INFO L225 Difference]: With dead ends: 376 [2020-11-22 12:48:03,703 INFO L226 Difference]: Without dead ends: 280 [2020-11-22 12:48:03,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:48:03,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-11-22 12:48:03,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2020-11-22 12:48:03,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-22 12:48:03,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 141 transitions. [2020-11-22 12:48:03,731 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 141 transitions. Word has length 32 [2020-11-22 12:48:03,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:03,732 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 141 transitions. [2020-11-22 12:48:03,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:48:03,732 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2020-11-22 12:48:03,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-22 12:48:03,734 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:03,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:03,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:48:03,946 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:03,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:03,946 INFO L82 PathProgramCache]: Analyzing trace with hash 477559900, now seen corresponding path program 1 times [2020-11-22 12:48:03,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:03,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737132832] [2020-11-22 12:48:03,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:04,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:48:04,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:04,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:04,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:04,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737132832] [2020-11-22 12:48:04,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:04,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:48:04,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564733631] [2020-11-22 12:48:04,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:48:04,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:04,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:48:04,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:48:04,192 INFO L87 Difference]: Start difference. First operand 102 states and 141 transitions. Second operand 5 states. [2020-11-22 12:48:04,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:04,266 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2020-11-22 12:48:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:48:04,267 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-11-22 12:48:04,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:04,268 INFO L225 Difference]: With dead ends: 273 [2020-11-22 12:48:04,268 INFO L226 Difference]: Without dead ends: 178 [2020-11-22 12:48:04,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:48:04,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-11-22 12:48:04,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2020-11-22 12:48:04,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-22 12:48:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2020-11-22 12:48:04,298 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 35 [2020-11-22 12:48:04,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:04,303 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2020-11-22 12:48:04,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:48:04,303 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2020-11-22 12:48:04,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-22 12:48:04,308 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:04,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:04,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 12:48:04,510 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:04,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:04,510 INFO L82 PathProgramCache]: Analyzing trace with hash -533557350, now seen corresponding path program 1 times [2020-11-22 12:48:04,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:04,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370273958] [2020-11-22 12:48:04,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:04,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:48:04,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:04,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:04,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:04,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370273958] [2020-11-22 12:48:04,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:04,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 12:48:04,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009545457] [2020-11-22 12:48:04,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 12:48:04,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:04,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 12:48:04,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 12:48:04,807 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand 6 states. [2020-11-22 12:48:04,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:04,891 INFO L93 Difference]: Finished difference Result 291 states and 395 transitions. [2020-11-22 12:48:04,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:48:04,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-11-22 12:48:04,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:04,893 INFO L225 Difference]: With dead ends: 291 [2020-11-22 12:48:04,893 INFO L226 Difference]: Without dead ends: 190 [2020-11-22 12:48:04,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:48:04,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-11-22 12:48:04,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 112. [2020-11-22 12:48:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-22 12:48:04,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2020-11-22 12:48:04,911 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 151 transitions. Word has length 35 [2020-11-22 12:48:04,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:04,912 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 151 transitions. [2020-11-22 12:48:04,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 12:48:04,912 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 151 transitions. [2020-11-22 12:48:04,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-22 12:48:04,913 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:04,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:05,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 12:48:05,114 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:05,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:05,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1554625704, now seen corresponding path program 1 times [2020-11-22 12:48:05,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:05,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251543370] [2020-11-22 12:48:05,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:05,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:48:05,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:05,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:05,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:05,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:05,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251543370] [2020-11-22 12:48:05,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:05,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:48:05,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852017017] [2020-11-22 12:48:05,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:48:05,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:05,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:48:05,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:48:05,337 INFO L87 Difference]: Start difference. First operand 112 states and 151 transitions. Second operand 4 states. [2020-11-22 12:48:05,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:05,409 INFO L93 Difference]: Finished difference Result 350 states and 475 transitions. [2020-11-22 12:48:05,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:48:05,410 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-11-22 12:48:05,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:05,412 INFO L225 Difference]: With dead ends: 350 [2020-11-22 12:48:05,412 INFO L226 Difference]: Without dead ends: 245 [2020-11-22 12:48:05,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:48:05,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-11-22 12:48:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 195. [2020-11-22 12:48:05,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-11-22 12:48:05,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 262 transitions. [2020-11-22 12:48:05,445 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 262 transitions. Word has length 35 [2020-11-22 12:48:05,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:05,445 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 262 transitions. [2020-11-22 12:48:05,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:48:05,446 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 262 transitions. [2020-11-22 12:48:05,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-22 12:48:05,448 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:05,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:05,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 12:48:05,662 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:05,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:05,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1879284200, now seen corresponding path program 1 times [2020-11-22 12:48:05,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:05,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720989687] [2020-11-22 12:48:05,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:05,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 12:48:05,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:05,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:05,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:05,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720989687] [2020-11-22 12:48:05,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:05,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-22 12:48:05,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087901067] [2020-11-22 12:48:05,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 12:48:05,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:05,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 12:48:05,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:48:05,964 INFO L87 Difference]: Start difference. First operand 195 states and 262 transitions. Second operand 10 states. [2020-11-22 12:48:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:07,618 INFO L93 Difference]: Finished difference Result 793 states and 1045 transitions. [2020-11-22 12:48:07,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-22 12:48:07,619 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-11-22 12:48:07,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:07,622 INFO L225 Difference]: With dead ends: 793 [2020-11-22 12:48:07,622 INFO L226 Difference]: Without dead ends: 605 [2020-11-22 12:48:07,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-11-22 12:48:07,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-11-22 12:48:07,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 195. [2020-11-22 12:48:07,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-11-22 12:48:07,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2020-11-22 12:48:07,660 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 36 [2020-11-22 12:48:07,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:07,661 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2020-11-22 12:48:07,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 12:48:07,661 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2020-11-22 12:48:07,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-22 12:48:07,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:07,662 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:07,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 12:48:07,875 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:07,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1171715198, now seen corresponding path program 1 times [2020-11-22 12:48:07,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:07,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918377443] [2020-11-22 12:48:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:08,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:48:08,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:08,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:08,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918377443] [2020-11-22 12:48:08,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:08,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:48:08,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604652973] [2020-11-22 12:48:08,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:48:08,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:08,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:48:08,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:48:08,095 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand 3 states. [2020-11-22 12:48:08,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:08,167 INFO L93 Difference]: Finished difference Result 319 states and 420 transitions. [2020-11-22 12:48:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:48:08,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-22 12:48:08,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:08,170 INFO L225 Difference]: With dead ends: 319 [2020-11-22 12:48:08,170 INFO L226 Difference]: Without dead ends: 317 [2020-11-22 12:48:08,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:48:08,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-11-22 12:48:08,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 235. [2020-11-22 12:48:08,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-11-22 12:48:08,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 316 transitions. [2020-11-22 12:48:08,202 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 316 transitions. Word has length 51 [2020-11-22 12:48:08,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:08,202 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 316 transitions. [2020-11-22 12:48:08,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:48:08,203 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 316 transitions. [2020-11-22 12:48:08,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-22 12:48:08,204 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:08,204 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:08,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-22 12:48:08,420 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:08,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:08,420 INFO L82 PathProgramCache]: Analyzing trace with hash -813198171, now seen corresponding path program 1 times [2020-11-22 12:48:08,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:08,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450699208] [2020-11-22 12:48:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:48:10,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:48:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:48:11,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:48:11,847 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:48:11,848 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:48:12,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-22 12:48:12,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:48:12 BoogieIcfgContainer [2020-11-22 12:48:12,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:48:12,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:48:12,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:48:12,227 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:48:12,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:47:59" (3/4) ... [2020-11-22 12:48:12,229 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:48:12,361 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5c3c827e-f3a7-4f6e-9410-52d99e24bba4/bin/utaipan/witness.graphml [2020-11-22 12:48:12,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:48:12,363 INFO L168 Benchmark]: Toolchain (without parser) took 16608.71 ms. Allocated memory was 58.7 MB in the beginning and 121.6 MB in the end (delta: 62.9 MB). Free memory was 36.0 MB in the beginning and 48.9 MB in the end (delta: -12.9 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:12,363 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory was 40.5 MB in the beginning and 40.5 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:48:12,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 901.04 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 24.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:12,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.68 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 23.9 MB in the beginning and 65.8 MB in the end (delta: -41.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:12,364 INFO L168 Benchmark]: Boogie Preprocessor took 53.35 ms. Allocated memory is still 86.0 MB. Free memory was 65.8 MB in the beginning and 63.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:12,365 INFO L168 Benchmark]: RCFGBuilder took 3105.54 ms. Allocated memory is still 86.0 MB. Free memory was 63.4 MB in the beginning and 60.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:12,365 INFO L168 Benchmark]: TraceAbstraction took 12301.98 ms. Allocated memory was 86.0 MB in the beginning and 121.6 MB in the end (delta: 35.7 MB). Free memory was 60.3 MB in the beginning and 77.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 65.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:12,365 INFO L168 Benchmark]: Witness Printer took 134.46 ms. Allocated memory is still 121.6 MB. Free memory was 77.2 MB in the beginning and 48.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:12,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory was 40.5 MB in the beginning and 40.5 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 901.04 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 24.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.68 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 23.9 MB in the beginning and 65.8 MB in the end (delta: -41.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.35 ms. Allocated memory is still 86.0 MB. Free memory was 65.8 MB in the beginning and 63.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3105.54 ms. Allocated memory is still 86.0 MB. Free memory was 63.4 MB in the beginning and 60.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12301.98 ms. Allocated memory was 86.0 MB in the beginning and 121.6 MB in the end (delta: 35.7 MB). Free memory was 60.3 MB in the beginning and 77.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 65.8 MB. Max. memory is 16.1 GB. * Witness Printer took 134.46 ms. Allocated memory is still 121.6 MB. Free memory was 77.2 MB in the beginning and 48.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L45] int methAndRunningLastTime ; [L253] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L457] int pumpRunning = 0; [L458] int systemActive = 1; [L630] int waterLevel = 1; [L631] int methaneLevelCritical = 0; [L837] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L911] int retValue_acc ; [L912] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L819] int retValue_acc ; [L822] retValue_acc = 1 [L823] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L918] tmp = valid_product() [L920] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L50] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L735] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L737] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L743] tmp = __VERIFIER_nondet_int() [L745] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L648] COND TRUE waterLevel < 2 [L649] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L464] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L471] COND TRUE \read(systemActive) [L493] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND TRUE ! pumpRunning [L608] int retValue_acc ; [L609] int tmp ; [L610] int tmp___0 ; [L710] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L713] COND FALSE !(waterLevel < 2) [L717] retValue_acc = 0 [L718] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] tmp = isHighWaterSensorDry() [L616] COND FALSE !(\read(tmp)) [L619] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] retValue_acc = tmp___0 [L622] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] tmp = isHighWaterLevel() [L500] COND TRUE \read(tmp) [L527] int tmp ; [L552] int retValue_acc ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] retValue_acc = isMethaneLevelCritical() [L558] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] tmp = isMethaneAlarm() [L533] COND FALSE !(\read(tmp)) [L521] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] int tmp ; [L56] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L60] tmp = isMethaneLevelCritical() [L62] COND FALSE !(\read(tmp)) [L78] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L735] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L737] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L660] COND FALSE !(\read(methaneLevelCritical)) [L663] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L464] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L636] COND TRUE waterLevel > 0 [L637] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] COND TRUE \read(systemActive) [L493] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L55] int tmp ; [L56] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L60] tmp = isMethaneLevelCritical() [L62] COND TRUE \read(tmp) [L563] int retValue_acc ; [L566] retValue_acc = pumpRunning [L567] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L64] tmp___0 = isPumpRunning() [L66] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L67] COND FALSE !(\read(methAndRunningLastTime)) [L72] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L735] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L737] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L636] COND TRUE waterLevel > 0 [L637] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] COND TRUE \read(systemActive) [L493] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L496] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L55] int tmp ; [L56] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L60] tmp = isMethaneLevelCritical() [L62] COND TRUE \read(tmp) [L563] int retValue_acc ; [L566] retValue_acc = pumpRunning [L567] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L64] tmp___0 = isPumpRunning() [L66] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L67] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec2_product41.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 94 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.0s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 874 SDtfs, 1189 SDslu, 1808 SDs, 0 SdLazy, 210 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 689 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 986 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 41040 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2325 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 28/28 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! Received shutdown request...