./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw --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 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw --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 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:29:39,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:29:39,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:29:39,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:29:39,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:29:39,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:29:39,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:29:39,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:29:39,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:29:39,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:29:39,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:29:39,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:29:39,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:29:39,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:29:39,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:29:39,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:29:39,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:29:39,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:29:39,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:29:39,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:29:39,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:29:39,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:29:39,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:29:39,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:29:39,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:29:39,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:29:39,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:29:39,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:29:39,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:29:39,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:29:39,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:29:39,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:29:39,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:29:39,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:29:39,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:29:39,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:29:39,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:29:39,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:29:39,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:29:39,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:29:39,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:29:39,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:29:39,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:29:39,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:29:39,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:29:39,294 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:29:39,295 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:29:39,295 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:29:39,296 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:29:39,296 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:29:39,296 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:29:39,296 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:29:39,297 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:29:39,297 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:29:39,297 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:29:39,298 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:29:39,298 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:29:39,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:29:39,299 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:29:39,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:29:39,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:29:39,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:29:39,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:29:39,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:29:39,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:29:39,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:29:39,302 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:29:39,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:29:39,302 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:29:39,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:29:39,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:29:39,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:29:39,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:29:39,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:29:39,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:29:39,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:29:39,305 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:29:39,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:29:39,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:29:39,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:29:39,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:29:39,306 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 [2021-10-20 05:29:39,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:29:39,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:29:39,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:29:39,644 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:29:39,645 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:29:39,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-10-20 05:29:39,744 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/data/60613fef7/0d218fb2f2ec48f6a33f0935243804ab/FLAG099b54ffa [2021-10-20 05:29:40,337 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:29:40,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-10-20 05:29:40,354 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/data/60613fef7/0d218fb2f2ec48f6a33f0935243804ab/FLAG099b54ffa [2021-10-20 05:29:40,621 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/data/60613fef7/0d218fb2f2ec48f6a33f0935243804ab [2021-10-20 05:29:40,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:29:40,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:29:40,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:29:40,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:29:40,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:29:40,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:29:40" (1/1) ... [2021-10-20 05:29:40,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c452b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:40, skipping insertion in model container [2021-10-20 05:29:40,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:29:40" (1/1) ... [2021-10-20 05:29:40,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:29:40,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:29:41,114 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2021-10-20 05:29:41,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:29:41,151 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-20 05:29:41,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e91ff55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:41, skipping insertion in model container [2021-10-20 05:29:41,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:29:41,154 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:29:41,157 INFO L168 Benchmark]: Toolchain (without parser) took 529.38 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 49.1 MB in the beginning and 85.0 MB in the end (delta: -36.0 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:29:41,159 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 56.6 MB in the beginning and 56.6 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:29:41,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.47 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 48.8 MB in the beginning and 85.0 MB in the end (delta: -36.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:29:41,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 56.6 MB in the beginning and 56.6 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 518.47 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 48.8 MB in the beginning and 85.0 MB in the end (delta: -36.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 78]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:29:44,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:29:44,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:29:44,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:29:44,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:29:44,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:29:44,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:29:44,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:29:44,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:29:44,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:29:44,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:29:44,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:29:44,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:29:44,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:29:44,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:29:44,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:29:44,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:29:44,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:29:44,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:29:44,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:29:44,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:29:44,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:29:44,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:29:44,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:29:44,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:29:44,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:29:44,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:29:44,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:29:44,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:29:44,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:29:44,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:29:44,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:29:44,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:29:44,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:29:44,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:29:44,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:29:44,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:29:44,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:29:44,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:29:44,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:29:44,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:29:44,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:29:44,301 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:29:44,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:29:44,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:29:44,304 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:29:44,304 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:29:44,305 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:29:44,305 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:29:44,306 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:29:44,306 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:29:44,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:29:44,309 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:29:44,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:29:44,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:29:44,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:29:44,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:29:44,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:29:44,311 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:29:44,312 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:29:44,312 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:29:44,313 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:29:44,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:29:44,313 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:29:44,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:29:44,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:29:44,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:29:44,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:29:44,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:29:44,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:29:44,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:29:44,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:29:44,317 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:29:44,317 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:29:44,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:29:44,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:29:44,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:29:44,319 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 [2021-10-20 05:29:44,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:29:44,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:29:44,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:29:44,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:29:44,901 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:29:44,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-10-20 05:29:45,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/data/ef6c07af0/6897ca371bfb49e6a4dfd9108e41126a/FLAG21dfc4398 [2021-10-20 05:29:45,739 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:29:45,740 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-10-20 05:29:45,769 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/data/ef6c07af0/6897ca371bfb49e6a4dfd9108e41126a/FLAG21dfc4398 [2021-10-20 05:29:45,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/data/ef6c07af0/6897ca371bfb49e6a4dfd9108e41126a [2021-10-20 05:29:45,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:29:45,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:29:45,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:29:45,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:29:45,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:29:45,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:29:45" (1/1) ... [2021-10-20 05:29:45,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d73b851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:45, skipping insertion in model container [2021-10-20 05:29:45,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:29:45" (1/1) ... [2021-10-20 05:29:45,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:29:46,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:29:46,446 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2021-10-20 05:29:46,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:29:46,481 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:29:46,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:29:46,610 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2021-10-20 05:29:46,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:29:46,628 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:29:46,704 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2021-10-20 05:29:46,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:29:46,740 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:29:46,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46 WrapperNode [2021-10-20 05:29:46,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:29:46,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:29:46,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:29:46,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:29:46,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (1/1) ... [2021-10-20 05:29:46,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (1/1) ... [2021-10-20 05:29:46,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:29:46,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:29:46,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:29:46,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:29:46,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (1/1) ... [2021-10-20 05:29:46,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (1/1) ... [2021-10-20 05:29:46,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (1/1) ... [2021-10-20 05:29:46,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (1/1) ... [2021-10-20 05:29:46,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (1/1) ... [2021-10-20 05:29:46,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (1/1) ... [2021-10-20 05:29:46,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (1/1) ... [2021-10-20 05:29:46,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:29:46,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:29:46,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:29:46,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:29:46,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (1/1) ... [2021-10-20 05:29:46,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:29:46,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:29:46,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:29:46,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:29:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:29:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:29:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:29:46,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:29:49,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:29:49,928 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-10-20 05:29:49,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:29:49 BoogieIcfgContainer [2021-10-20 05:29:49,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:29:49,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:29:49,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:29:49,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:29:49,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:29:45" (1/3) ... [2021-10-20 05:29:49,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5957ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:29:49, skipping insertion in model container [2021-10-20 05:29:49,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:29:46" (2/3) ... [2021-10-20 05:29:49,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5957ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:29:49, skipping insertion in model container [2021-10-20 05:29:49,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:29:49" (3/3) ... [2021-10-20 05:29:49,941 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2021-10-20 05:29:49,948 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:29:49,948 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-20 05:29:50,013 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:29:50,019 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:29:50,020 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-20 05:29:50,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 74 states have (on average 1.5810810810810811) internal successors, (117), 77 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:50,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-20 05:29:50,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:29:50,046 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:29:50,047 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:29:50,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:29:50,054 INFO L82 PathProgramCache]: Analyzing trace with hash 768274677, now seen corresponding path program 1 times [2021-10-20 05:29:50,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:29:50,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618681124] [2021-10-20 05:29:50,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:29:50,072 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:29:50,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:29:50,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:29:50,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:29:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:29:50,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-20 05:29:50,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:29:50,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:50,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:29:50,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:50,611 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:29:50,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618681124] [2021-10-20 05:29:50,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618681124] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:29:50,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:29:50,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:29:50,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938271769] [2021-10-20 05:29:50,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-20 05:29:50,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:29:50,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-20 05:29:50,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:29:50,645 INFO L87 Difference]: Start difference. First operand has 78 states, 74 states have (on average 1.5810810810810811) internal successors, (117), 77 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:50,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:29:50,693 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2021-10-20 05:29:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-20 05:29:50,695 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-20 05:29:50,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:29:50,709 INFO L225 Difference]: With dead ends: 150 [2021-10-20 05:29:50,709 INFO L226 Difference]: Without dead ends: 74 [2021-10-20 05:29:50,713 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:29:50,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-20 05:29:50,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-20 05:29:50,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 73 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:50,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2021-10-20 05:29:50,776 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2021-10-20 05:29:50,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:29:50,777 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2021-10-20 05:29:50,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:50,778 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2021-10-20 05:29:50,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-20 05:29:50,780 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:29:50,780 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:29:50,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:29:50,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:29:50,996 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:29:50,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:29:50,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1484097871, now seen corresponding path program 1 times [2021-10-20 05:29:50,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:29:50,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202710391] [2021-10-20 05:29:50,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:29:50,999 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:29:50,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:29:51,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:29:51,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:29:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:29:51,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:29:51,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:29:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:51,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:29:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:51,431 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:29:51,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202710391] [2021-10-20 05:29:51,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202710391] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:29:51,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:29:51,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:29:51,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058328578] [2021-10-20 05:29:51,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:29:51,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:29:51,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:29:51,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:29:51,436 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:51,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:29:51,453 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2021-10-20 05:29:51,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:29:51,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-20 05:29:51,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:29:51,455 INFO L225 Difference]: With dead ends: 74 [2021-10-20 05:29:51,455 INFO L226 Difference]: Without dead ends: 34 [2021-10-20 05:29:51,457 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:29:51,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-20 05:29:51,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-20 05:29:51,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 33 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:51,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2021-10-20 05:29:51,463 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2021-10-20 05:29:51,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:29:51,463 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2021-10-20 05:29:51,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:51,464 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2021-10-20 05:29:51,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-20 05:29:51,465 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:29:51,465 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:29:51,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:29:51,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:29:51,684 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:29:51,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:29:51,685 INFO L82 PathProgramCache]: Analyzing trace with hash 670124178, now seen corresponding path program 1 times [2021-10-20 05:29:51,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:29:51,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765345040] [2021-10-20 05:29:51,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:29:51,687 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:29:51,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:29:51,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:29:51,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:29:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:29:51,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:29:51,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:29:52,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:52,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:29:52,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:52,154 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:29:52,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765345040] [2021-10-20 05:29:52,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765345040] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:29:52,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:29:52,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-20 05:29:52,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484141267] [2021-10-20 05:29:52,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:29:52,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:29:52,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:29:52,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:29:52,160 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:52,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:29:52,184 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2021-10-20 05:29:52,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:29:52,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-20 05:29:52,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:29:52,186 INFO L225 Difference]: With dead ends: 62 [2021-10-20 05:29:52,186 INFO L226 Difference]: Without dead ends: 34 [2021-10-20 05:29:52,188 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:29:52,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-20 05:29:52,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-20 05:29:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 33 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:52,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2021-10-20 05:29:52,203 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2021-10-20 05:29:52,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:29:52,203 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2021-10-20 05:29:52,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2021-10-20 05:29:52,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-20 05:29:52,208 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:29:52,209 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:29:52,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:29:52,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:29:52,426 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:29:52,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:29:52,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1804645939, now seen corresponding path program 1 times [2021-10-20 05:29:52,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:29:52,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819607435] [2021-10-20 05:29:52,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:29:52,428 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:29:52,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:29:52,429 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:29:52,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:29:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:29:52,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:29:52,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:29:52,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:52,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:29:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:52,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:29:52,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819607435] [2021-10-20 05:29:52,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819607435] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:29:52,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:29:52,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:29:52,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146998434] [2021-10-20 05:29:52,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:29:52,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:29:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:29:52,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:29:52,843 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:29:52,903 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2021-10-20 05:29:52,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:29:52,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-20 05:29:52,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:29:52,905 INFO L225 Difference]: With dead ends: 83 [2021-10-20 05:29:52,905 INFO L226 Difference]: Without dead ends: 55 [2021-10-20 05:29:52,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:29:52,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-20 05:29:52,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2021-10-20 05:29:52,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 52 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2021-10-20 05:29:52,915 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2021-10-20 05:29:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:29:52,916 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2021-10-20 05:29:52,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:52,916 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2021-10-20 05:29:52,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-20 05:29:52,918 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:29:52,918 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:29:52,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:29:53,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:29:53,133 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:29:53,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:29:53,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1746371458, now seen corresponding path program 1 times [2021-10-20 05:29:53,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:29:53,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509629746] [2021-10-20 05:29:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:29:53,135 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:29:53,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:29:53,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:29:53,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 05:29:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:29:53,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:29:53,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:29:53,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:53,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:29:53,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:53,613 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:29:53,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509629746] [2021-10-20 05:29:53,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509629746] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:29:53,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:29:53,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-20 05:29:53,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800154024] [2021-10-20 05:29:53,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 05:29:53,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:29:53,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 05:29:53,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-20 05:29:53,617 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:53,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:29:53,684 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2021-10-20 05:29:53,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-20 05:29:53,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-20 05:29:53,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:29:53,690 INFO L225 Difference]: With dead ends: 139 [2021-10-20 05:29:53,691 INFO L226 Difference]: Without dead ends: 92 [2021-10-20 05:29:53,692 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:29:53,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-20 05:29:53,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2021-10-20 05:29:53,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.4) internal successors, (77), 55 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:53,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2021-10-20 05:29:53,706 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2021-10-20 05:29:53,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:29:53,707 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2021-10-20 05:29:53,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:53,708 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2021-10-20 05:29:53,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-20 05:29:53,709 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:29:53,710 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:29:53,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:29:53,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:29:53,930 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:29:53,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:29:53,931 INFO L82 PathProgramCache]: Analyzing trace with hash 916139585, now seen corresponding path program 1 times [2021-10-20 05:29:53,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:29:53,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819833864] [2021-10-20 05:29:53,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:29:53,932 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:29:53,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:29:53,933 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:29:53,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-20 05:29:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:29:54,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:29:54,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:29:54,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:54,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:29:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:29:54,589 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:29:54,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819833864] [2021-10-20 05:29:54,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819833864] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:29:54,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:29:54,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-20 05:29:54,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217829732] [2021-10-20 05:29:54,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 05:29:54,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:29:54,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 05:29:54,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:29:54,592 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:54,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:29:54,921 INFO L93 Difference]: Finished difference Result 390 states and 558 transitions. [2021-10-20 05:29:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-20 05:29:54,922 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-20 05:29:54,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:29:54,925 INFO L225 Difference]: With dead ends: 390 [2021-10-20 05:29:54,925 INFO L226 Difference]: Without dead ends: 340 [2021-10-20 05:29:54,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 169.6ms TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-10-20 05:29:54,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-10-20 05:29:54,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 140. [2021-10-20 05:29:54,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.3669064748201438) internal successors, (190), 139 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:54,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2021-10-20 05:29:54,980 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 29 [2021-10-20 05:29:54,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:29:54,981 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2021-10-20 05:29:54,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:54,981 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2021-10-20 05:29:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-20 05:29:54,989 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:29:54,990 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-10-20 05:29:55,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-20 05:29:55,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:29:55,207 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:29:55,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:29:55,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1650264504, now seen corresponding path program 1 times [2021-10-20 05:29:55,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:29:55,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523815207] [2021-10-20 05:29:55,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:29:55,209 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:29:55,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:29:55,211 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:29:55,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-20 05:29:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:29:55,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:29:55,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:29:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 05:29:55,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:29:55,788 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 05:29:55,789 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:29:55,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523815207] [2021-10-20 05:29:55,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523815207] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:29:55,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:29:55,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 05:29:55,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749252787] [2021-10-20 05:29:55,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 05:29:55,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:29:55,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 05:29:55,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-20 05:29:55,791 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:55,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:29:55,864 INFO L93 Difference]: Finished difference Result 325 states and 442 transitions. [2021-10-20 05:29:55,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 05:29:55,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-20 05:29:55,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:29:55,868 INFO L225 Difference]: With dead ends: 325 [2021-10-20 05:29:55,868 INFO L226 Difference]: Without dead ends: 191 [2021-10-20 05:29:55,872 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 27.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:29:55,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-10-20 05:29:55,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 120. [2021-10-20 05:29:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.3445378151260505) internal successors, (160), 119 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2021-10-20 05:29:55,905 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 44 [2021-10-20 05:29:55,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:29:55,908 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2021-10-20 05:29:55,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:29:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2021-10-20 05:29:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-20 05:29:55,916 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:29:55,916 INFO L512 BasicCegarLoop]: trace histogram [2, 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] [2021-10-20 05:29:55,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-20 05:29:56,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:29:56,132 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:29:56,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:29:56,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1693810360, now seen corresponding path program 1 times [2021-10-20 05:29:56,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:29:56,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337523820] [2021-10-20 05:29:56,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:29:56,133 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:29:56,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:29:56,137 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:29:56,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-20 05:29:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:29:56,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 05:29:56,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:29:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-20 05:29:56,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:29:56,962 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-20 05:29:56,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:29:56,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337523820] [2021-10-20 05:29:56,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337523820] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:29:56,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1889126496] [2021-10-20 05:29:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:29:56,963 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:29:56,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:29:56,978 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:29:56,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-20 05:29:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:29:57,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 05:29:57,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:29:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-20 05:29:57,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:29:57,758 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-20 05:29:57,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1889126496] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:29:57,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464867662] [2021-10-20 05:29:57,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:29:57,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:29:57,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:29:57,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:29:57,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-20 05:29:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:29:58,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 05:29:58,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:29:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-20 05:29:58,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:29:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-20 05:29:58,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464867662] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:29:58,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-20 05:29:58,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-20 05:29:58,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494205408] [2021-10-20 05:29:58,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-20 05:29:58,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:29:58,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-20 05:29:58,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-20 05:29:58,470 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:30:02,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:30:02,209 INFO L93 Difference]: Finished difference Result 727 states and 1006 transitions. [2021-10-20 05:30:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-20 05:30:02,209 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-20 05:30:02,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:30:02,214 INFO L225 Difference]: With dead ends: 727 [2021-10-20 05:30:02,215 INFO L226 Difference]: Without dead ends: 636 [2021-10-20 05:30:02,216 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 420.2ms TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-10-20 05:30:02,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-10-20 05:30:02,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 217. [2021-10-20 05:30:02,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.3703703703703705) internal successors, (296), 216 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:30:02,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 296 transitions. [2021-10-20 05:30:02,270 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 296 transitions. Word has length 45 [2021-10-20 05:30:02,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:30:02,271 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 296 transitions. [2021-10-20 05:30:02,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:30:02,272 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 296 transitions. [2021-10-20 05:30:02,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-20 05:30:02,274 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:30:02,275 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-20 05:30:02,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-20 05:30:02,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-20 05:30:02,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-20 05:30:02,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt [2021-10-20 05:30:02,891 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:30:02,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:30:02,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1880584764, now seen corresponding path program 2 times [2021-10-20 05:30:02,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:30:02,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423594497] [2021-10-20 05:30:02,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-20 05:30:02,892 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:30:02,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:30:02,895 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:30:02,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-20 05:30:04,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-20 05:30:04,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-20 05:30:04,575 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:30:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:30:06,561 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-20 05:30:06,561 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:30:06,562 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:30:06,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:30:06,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:30:06,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-20 05:30:06,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:30:06,796 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:30:07,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:30:07 BoogieIcfgContainer [2021-10-20 05:30:07,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:30:07,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:30:07,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:30:07,016 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:30:07,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:29:49" (3/4) ... [2021-10-20 05:30:07,019 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:30:07,196 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:30:07,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:30:07,206 INFO L168 Benchmark]: Toolchain (without parser) took 21230.22 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 51.3 MB in the beginning and 30.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 52.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:30:07,206 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 71.3 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:30:07,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.50 ms. Allocated memory is still 71.3 MB. Free memory was 51.1 MB in the beginning and 39.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:30:07,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.99 ms. Allocated memory is still 71.3 MB. Free memory was 39.0 MB in the beginning and 36.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:30:07,208 INFO L168 Benchmark]: Boogie Preprocessor took 52.34 ms. Allocated memory is still 71.3 MB. Free memory was 36.0 MB in the beginning and 33.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:30:07,209 INFO L168 Benchmark]: RCFGBuilder took 3053.97 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 33.9 MB in the beginning and 46.5 MB in the end (delta: -12.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:30:07,210 INFO L168 Benchmark]: TraceAbstraction took 17082.04 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 46.0 MB in the beginning and 54.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:30:07,210 INFO L168 Benchmark]: Witness Printer took 188.47 ms. Allocated memory is still 104.9 MB. Free memory was 54.8 MB in the beginning and 30.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:30:07,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 71.3 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 765.50 ms. Allocated memory is still 71.3 MB. Free memory was 51.1 MB in the beginning and 39.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.99 ms. Allocated memory is still 71.3 MB. Free memory was 39.0 MB in the beginning and 36.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.34 ms. Allocated memory is still 71.3 MB. Free memory was 36.0 MB in the beginning and 33.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3053.97 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 33.9 MB in the beginning and 46.5 MB in the end (delta: -12.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17082.04 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 46.0 MB in the beginning and 54.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. * Witness Printer took 188.47 ms. Allocated memory is still 104.9 MB. Free memory was 54.8 MB in the beginning and 30.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 879]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L625] int waterLevel = 1; [L626] int methaneLevelCritical = 0; [L722] int pumpRunning = 0; [L723] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L565] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L643] COND TRUE waterLevel < 2 [L644] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L730] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L737] COND TRUE \read(systemActive) [L759] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L762] COND TRUE ! pumpRunning [L856] int retValue_acc ; [L857] int tmp ; [L858] int tmp___0 ; [L705] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L708] COND FALSE !(waterLevel < 2) [L712] retValue_acc = 0 [L713] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L862] tmp = isHighWaterSensorDry() [L864] COND FALSE !(\read(tmp)) [L867] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] retValue_acc = tmp___0 [L870] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L764] tmp = isHighWaterLevel() [L766] COND TRUE \read(tmp) [L787] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L885] int tmp ; [L886] int tmp___0 ; [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L890] tmp = getWaterLevel() [L892] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L730] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L631] COND TRUE waterLevel > 0 [L632] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L737] COND TRUE \read(systemActive) [L759] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L762] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L885] int tmp ; [L886] int tmp___0 ; [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L890] tmp = getWaterLevel() [L892] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L730] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L631] COND TRUE waterLevel > 0 [L632] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L737] COND TRUE \read(systemActive) [L759] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L762] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L885] int tmp ; [L886] int tmp___0 ; [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L890] tmp = getWaterLevel() [L892] COND TRUE tmp == 0 [L811] int retValue_acc ; [L814] retValue_acc = pumpRunning [L815] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L894] tmp___0 = isPumpRunning() [L896] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L879] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - UnprovableResult [Line: 879]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 16781.0ms, OverallIterations: 9, TraceHistogramMax: 3, EmptinessCheckTime: 39.1ms, AutomataDifference: 4447.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 584 SDtfs, 1312 SDslu, 1289 SDs, 0 SdLazy, 280 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3382.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 642 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 684.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=8, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 228.9ms AutomataMinimizationTime, 8 MinimizatonAttempts, 728 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 300.5ms SsaConstructionTime, 2660.1ms SatisfiabilityAnalysisTime, 3126.7ms InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 1463 SizeOfPredicates, 18 NumberOfNonLiveVariables, 2095 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 58/112 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-20 05:30:07,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a85212a-1157-45b3-95a5-bba8d63177c6/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...