./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.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_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/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 cf530681c562daa6fa9ab5223cf4d9c859dac38d ............................................................................................................................................ 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_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/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 cf530681c562daa6fa9ab5223cf4d9c859dac38d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-28 07:27:27,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:27:27,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:27:27,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:27:27,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:27:27,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:27:27,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:27:27,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:27:27,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:27:27,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:27:27,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:27:27,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:27:27,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:27:27,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:27:27,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:27:27,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:27:27,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:27:27,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:27:27,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:27:27,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:27:27,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:27:27,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:27:27,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:27:27,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:27:27,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:27:27,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:27:27,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:27:27,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:27:27,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:27:27,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:27:27,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:27:27,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:27:27,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:27:27,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:27:27,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:27:27,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:27:27,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:27:27,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:27:27,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:27:27,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:27:27,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:27:27,141 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:27:27,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:27:27,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:27:27,181 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:27:27,181 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:27:27,181 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:27:27,181 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:27:27,181 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:27:27,182 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:27:27,182 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:27:27,182 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:27:27,183 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:27:27,183 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:27:27,183 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:27:27,183 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:27:27,184 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:27:27,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:27:27,185 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:27:27,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:27:27,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:27:27,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:27:27,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:27:27,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:27:27,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:27:27,186 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:27:27,186 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:27:27,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:27:27,187 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:27:27,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:27:27,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:27:27,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:27:27,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:27:27,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:27:27,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:27:27,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:27:27,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:27:27,189 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:27:27,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:27:27,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:27:27,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:27:27,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:27:27,189 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_badaf92d-766d-4125-9dc8-e9a29a2115a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf530681c562daa6fa9ab5223cf4d9c859dac38d [2020-11-28 07:27:27,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:27:27,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:27:27,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:27:27,513 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:27:27,514 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:27:27,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-11-28 07:27:27,602 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/data/45a969271/ae7e6f1821f0473fa97d92cc0b423049/FLAG932528592 [2020-11-28 07:27:28,183 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:27:28,184 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-11-28 07:27:28,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/data/45a969271/ae7e6f1821f0473fa97d92cc0b423049/FLAG932528592 [2020-11-28 07:27:28,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/data/45a969271/ae7e6f1821f0473fa97d92cc0b423049 [2020-11-28 07:27:28,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:27:28,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:27:28,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:27:28,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:27:28,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:27:28,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:27:28" (1/1) ... [2020-11-28 07:27:28,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604422c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:28, skipping insertion in model container [2020-11-28 07:27:28,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:27:28" (1/1) ... [2020-11-28 07:27:28,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:27:28,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:27:29,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:27:29,016 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) [2020-11-28 07:27:29,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10ca6b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:29, skipping insertion in model container [2020-11-28 07:27:29,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:27:29,017 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-28 07:27:29,019 INFO L168 Benchmark]: Toolchain (without parser) took 500.84 ms. Allocated memory is still 102.8 MB. Free memory was 67.9 MB in the beginning and 75.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:27:29,020 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory was 76.0 MB in the beginning and 76.0 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:27:29,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.88 ms. Allocated memory is still 102.8 MB. Free memory was 67.6 MB in the beginning and 75.7 MB in the end (delta: -8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:27:29,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory was 76.0 MB in the beginning and 76.0 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 497.88 ms. Allocated memory is still 102.8 MB. Free memory was 67.6 MB in the beginning and 75.7 MB in the end (delta: -8.1 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: 454]: 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 [2020-11-28 07:27:31,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:27:31,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:27:31,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:27:31,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:27:31,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:27:31,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:27:31,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:27:31,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:27:31,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:27:31,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:27:31,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:27:31,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:27:31,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:27:31,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:27:31,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:27:31,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:27:31,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:27:31,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:27:31,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:27:31,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:27:31,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:27:31,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:27:31,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:27:31,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:27:31,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:27:31,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:27:31,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:27:31,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:27:31,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:27:31,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:27:31,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:27:31,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:27:31,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:27:31,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:27:31,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:27:31,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:27:31,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:27:31,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:27:31,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:27:31,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:27:31,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:27:31,239 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:27:31,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:27:31,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:27:31,240 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:27:31,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:27:31,240 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:27:31,240 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:27:31,241 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:27:31,241 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:27:31,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:27:31,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:27:31,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:27:31,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:27:31,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:27:31,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:27:31,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:27:31,243 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:27:31,243 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:27:31,243 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:27:31,243 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:27:31,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:27:31,244 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:27:31,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:27:31,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:27:31,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:27:31,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:27:31,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:27:31,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:27:31,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:27:31,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:27:31,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:27:31,245 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:27:31,246 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:27:31,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:27:31,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:27:31,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:27:31,246 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_badaf92d-766d-4125-9dc8-e9a29a2115a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf530681c562daa6fa9ab5223cf4d9c859dac38d [2020-11-28 07:27:31,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:27:31,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:27:31,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:27:31,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:27:31,681 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:27:31,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-11-28 07:27:31,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/data/ae2a9c596/29fa4cb5af354259b826a1c4f6974d5c/FLAGa708b54de [2020-11-28 07:27:32,371 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:27:32,376 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-11-28 07:27:32,391 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/data/ae2a9c596/29fa4cb5af354259b826a1c4f6974d5c/FLAGa708b54de [2020-11-28 07:27:32,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/data/ae2a9c596/29fa4cb5af354259b826a1c4f6974d5c [2020-11-28 07:27:32,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:27:32,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:27:32,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:27:32,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:27:32,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:27:32,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:27:32" (1/1) ... [2020-11-28 07:27:32,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a7a7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:32, skipping insertion in model container [2020-11-28 07:27:32,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:27:32" (1/1) ... [2020-11-28 07:27:32,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:27:32,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:27:33,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:27:33,092 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 07:27:33,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:27:33,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:27:33,168 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:27:33,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:27:33,297 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:27:33,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33 WrapperNode [2020-11-28 07:27:33,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:27:33,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:27:33,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:27:33,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:27:33,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (1/1) ... [2020-11-28 07:27:33,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (1/1) ... [2020-11-28 07:27:33,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:27:33,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:27:33,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:27:33,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:27:33,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (1/1) ... [2020-11-28 07:27:33,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (1/1) ... [2020-11-28 07:27:33,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (1/1) ... [2020-11-28 07:27:33,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (1/1) ... [2020-11-28 07:27:33,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (1/1) ... [2020-11-28 07:27:33,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (1/1) ... [2020-11-28 07:27:33,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (1/1) ... [2020-11-28 07:27:33,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:27:33,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:27:33,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:27:33,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:27:33,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/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 [2020-11-28 07:27:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:27:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:27:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:27:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:27:35,823 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:27:35,829 INFO L298 CfgBuilder]: Removed 84 assume(true) statements. [2020-11-28 07:27:35,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:27:35 BoogieIcfgContainer [2020-11-28 07:27:35,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:27:35,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:27:35,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:27:35,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:27:35,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:27:32" (1/3) ... [2020-11-28 07:27:35,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d602622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:27:35, skipping insertion in model container [2020-11-28 07:27:35,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:27:33" (2/3) ... [2020-11-28 07:27:35,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d602622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:27:35, skipping insertion in model container [2020-11-28 07:27:35,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:27:35" (3/3) ... [2020-11-28 07:27:35,841 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-11-28 07:27:35,851 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:27:35,856 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 07:27:35,871 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 07:27:35,908 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:27:35,908 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:27:35,908 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:27:35,908 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:27:35,908 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:27:35,909 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:27:35,909 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:27:35,909 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:27:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-11-28 07:27:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 07:27:35,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:27:35,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:27:35,941 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:27:35,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:27:35,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1960119750, now seen corresponding path program 1 times [2020-11-28 07:27:35,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:27:35,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451211909] [2020-11-28 07:27:35,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/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 [2020-11-28 07:27:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:27:36,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:27:36,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:27:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:27:36,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:27:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:27:36,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451211909] [2020-11-28 07:27:36,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:27:36,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:27:36,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349310664] [2020-11-28 07:27:36,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:27:36,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:27:36,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:27:36,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:27:36,270 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2020-11-28 07:27:36,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:27:36,294 INFO L93 Difference]: Finished difference Result 127 states and 188 transitions. [2020-11-28 07:27:36,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:27:36,295 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 07:27:36,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:27:36,306 INFO L225 Difference]: With dead ends: 127 [2020-11-28 07:27:36,306 INFO L226 Difference]: Without dead ends: 61 [2020-11-28 07:27:36,309 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 [2020-11-28 07:27:36,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-28 07:27:36,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-11-28 07:27:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-28 07:27:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2020-11-28 07:27:36,347 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2020-11-28 07:27:36,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:27:36,347 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2020-11-28 07:27:36,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:27:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2020-11-28 07:27:36,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 07:27:36,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:27:36,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:27:36,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:27:36,568 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:27:36,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:27:36,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1049088997, now seen corresponding path program 1 times [2020-11-28 07:27:36,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:27:36,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479409470] [2020-11-28 07:27:36,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/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 [2020-11-28 07:27:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:27:36,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:27:36,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:27:36,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:27:36,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:27:36,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:27:36,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479409470] [2020-11-28 07:27:36,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:27:36,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 07:27:36,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655160263] [2020-11-28 07:27:36,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:27:36,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:27:36,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:27:36,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:27:36,817 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 4 states. [2020-11-28 07:27:36,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:27:36,835 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2020-11-28 07:27:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:27:36,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-28 07:27:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:27:36,839 INFO L225 Difference]: With dead ends: 61 [2020-11-28 07:27:36,839 INFO L226 Difference]: Without dead ends: 31 [2020-11-28 07:27:36,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:27:36,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-28 07:27:36,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-28 07:27:36,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-28 07:27:36,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-11-28 07:27:36,851 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2020-11-28 07:27:36,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:27:36,852 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-11-28 07:27:36,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:27:36,852 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-11-28 07:27:36,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 07:27:36,853 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:27:36,855 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] [2020-11-28 07:27:37,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:27:37,069 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:27:37,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:27:37,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810197, now seen corresponding path program 1 times [2020-11-28 07:27:37,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:27:37,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913724982] [2020-11-28 07:27:37,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/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 [2020-11-28 07:27:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:27:37,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:27:37,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:27:37,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:27:37,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:27:37,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:27:37,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913724982] [2020-11-28 07:27:37,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:27:37,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 07:27:37,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628300044] [2020-11-28 07:27:37,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:27:37,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:27:37,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:27:37,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:27:37,284 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 4 states. [2020-11-28 07:27:37,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:27:37,338 INFO L93 Difference]: Finished difference Result 106 states and 154 transitions. [2020-11-28 07:27:37,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:27:37,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-28 07:27:37,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:27:37,340 INFO L225 Difference]: With dead ends: 106 [2020-11-28 07:27:37,340 INFO L226 Difference]: Without dead ends: 81 [2020-11-28 07:27:37,341 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 [2020-11-28 07:27:37,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-11-28 07:27:37,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 52. [2020-11-28 07:27:37,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-28 07:27:37,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2020-11-28 07:27:37,358 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2020-11-28 07:27:37,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:27:37,359 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2020-11-28 07:27:37,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:27:37,359 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2020-11-28 07:27:37,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 07:27:37,360 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:27:37,360 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] [2020-11-28 07:27:37,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:27:37,577 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:27:37,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:27:37,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1755761006, now seen corresponding path program 1 times [2020-11-28 07:27:37,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:27:37,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085713418] [2020-11-28 07:27:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/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 [2020-11-28 07:27:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:27:37,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:27:37,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:27:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:27:37,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:27:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:27:37,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085713418] [2020-11-28 07:27:37,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:27:37,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-28 07:27:37,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415601259] [2020-11-28 07:27:37,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 07:27:37,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:27:37,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 07:27:37,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:27:37,842 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 8 states. [2020-11-28 07:27:38,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:27:38,252 INFO L93 Difference]: Finished difference Result 506 states and 780 transitions. [2020-11-28 07:27:38,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 07:27:38,255 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-11-28 07:27:38,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:27:38,260 INFO L225 Difference]: With dead ends: 506 [2020-11-28 07:27:38,260 INFO L226 Difference]: Without dead ends: 460 [2020-11-28 07:27:38,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-28 07:27:38,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-11-28 07:27:38,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 130. [2020-11-28 07:27:38,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-28 07:27:38,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2020-11-28 07:27:38,311 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 24 [2020-11-28 07:27:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:27:38,312 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2020-11-28 07:27:38,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 07:27:38,312 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2020-11-28 07:27:38,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 07:27:38,316 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:27:38,316 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] [2020-11-28 07:27:38,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:27:38,532 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:27:38,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:27:38,533 INFO L82 PathProgramCache]: Analyzing trace with hash 120698128, now seen corresponding path program 1 times [2020-11-28 07:27:38,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:27:38,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638066] [2020-11-28 07:27:38,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/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 [2020-11-28 07:27:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:27:39,926 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:27:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:27:40,914 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:27:41,058 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-28 07:27:41,058 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:27:41,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 07:27:41,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:27:41 BoogieIcfgContainer [2020-11-28 07:27:41,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:27:41,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:27:41,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:27:41,416 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:27:41,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:27:35" (3/4) ... [2020-11-28 07:27:41,418 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:27:41,498 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_badaf92d-766d-4125-9dc8-e9a29a2115a1/bin/utaipan/witness.graphml [2020-11-28 07:27:41,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:27:41,501 INFO L168 Benchmark]: Toolchain (without parser) took 8853.03 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 65.9 MB in the beginning and 51.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:27:41,502 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 54.5 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:27:41,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.30 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 56.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:27:41,503 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.75 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 54.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:27:41,505 INFO L168 Benchmark]: Boogie Preprocessor took 85.56 ms. Allocated memory is still 90.2 MB. Free memory was 54.3 MB in the beginning and 52.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:27:41,505 INFO L168 Benchmark]: RCFGBuilder took 2352.60 ms. Allocated memory is still 90.2 MB. Free memory was 52.0 MB in the beginning and 49.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:27:41,506 INFO L168 Benchmark]: TraceAbstraction took 5582.03 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 48.9 MB in the beginning and 61.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:27:41,507 INFO L168 Benchmark]: Witness Printer took 82.80 ms. Allocated memory is still 119.5 MB. Free memory was 61.8 MB in the beginning and 51.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:27:41,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 54.5 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 647.30 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 56.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.75 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 54.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.56 ms. Allocated memory is still 90.2 MB. Free memory was 54.3 MB in the beginning and 52.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2352.60 ms. Allocated memory is still 90.2 MB. Free memory was 52.0 MB in the beginning and 49.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5582.03 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 48.9 MB in the beginning and 61.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Witness Printer took 82.80 ms. Allocated memory is still 119.5 MB. Free memory was 61.8 MB in the beginning and 51.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 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: [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L308] int waterLevel = 1; [L309] int methaneLevelCritical = 0; [L595] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L792] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L865] int retValue_acc ; [L866] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] int retValue_acc ; [L420] retValue_acc = 1 [L421] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L872] tmp = valid_product() [L874] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L87] int splverifierCounter ; [L88] int tmp ; [L89] int tmp___0 ; [L90] int tmp___1 ; [L91] int tmp___2 ; [L94] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L96] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L98] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] tmp = __VERIFIER_nondet_int() [L106] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L326] COND TRUE waterLevel < 2 [L327] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] tmp___0 = __VERIFIER_nondet_int() [L116] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L124] tmp___2 = __VERIFIER_nondet_int() [L126] COND TRUE \read(tmp___2) [L303] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L347] int retValue_acc ; [L350] retValue_acc = methaneLevelCritical [L351] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L379] int retValue_acc ; [L382] retValue_acc = waterLevel [L383] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L240] int retValue_acc ; [L243] retValue_acc = pumpRunning [L244] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product12.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 68 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 240 SDtfs, 569 SDslu, 515 SDs, 0 SdLazy, 95 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 359 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 7764 SizeOfPredicates, 6 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...