./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs --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 afe4b513c16cd8a1b92d220e6bc61fd3a59f7e45 ............................................................................................................................................ 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_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs --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 afe4b513c16cd8a1b92d220e6bc61fd3a59f7e45 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-5709675 [2021-10-16 02:00:07,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:00:07,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:00:07,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:00:07,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:00:07,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:00:07,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:00:07,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:00:07,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:00:07,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:00:07,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:00:07,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:00:07,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:00:07,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:00:07,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:00:07,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:00:07,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:00:07,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:00:07,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:00:07,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:00:07,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:00:07,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:00:07,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:00:07,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:00:07,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:00:07,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:00:07,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:00:07,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:00:07,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:00:07,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:00:07,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:00:07,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:00:07,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:00:07,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:00:07,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:00:07,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:00:07,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:00:07,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:00:07,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:00:07,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:00:07,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:00:07,177 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:00:07,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:00:07,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:00:07,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:00:07,226 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:00:07,227 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:00:07,227 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:00:07,227 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:00:07,227 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:00:07,228 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:00:07,228 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:00:07,229 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:00:07,229 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:00:07,230 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:00:07,230 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:00:07,230 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:00:07,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:00:07,231 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:00:07,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:00:07,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:00:07,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:00:07,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:00:07,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:00:07,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:00:07,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:00:07,233 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:00:07,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:00:07,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:00:07,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:00:07,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:00:07,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:00:07,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:00:07,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:00:07,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:00:07,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:00:07,237 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:00:07,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:00:07,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:00:07,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:00:07,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:00:07,238 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_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afe4b513c16cd8a1b92d220e6bc61fd3a59f7e45 [2021-10-16 02:00:07,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:00:07,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:00:07,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:00:07,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:00:07,537 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:00:07,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2021-10-16 02:00:07,601 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/data/f0fe8993c/9391a9f655694fc598dd401dea56f836/FLAG48c9d043d [2021-10-16 02:00:08,125 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:00:08,126 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2021-10-16 02:00:08,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/data/f0fe8993c/9391a9f655694fc598dd401dea56f836/FLAG48c9d043d [2021-10-16 02:00:08,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/data/f0fe8993c/9391a9f655694fc598dd401dea56f836 [2021-10-16 02:00:08,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:00:08,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:00:08,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:08,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:00:08,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:00:08,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:08" (1/1) ... [2021-10-16 02:00:08,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7abe96e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:08, skipping insertion in model container [2021-10-16 02:00:08,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:08" (1/1) ... [2021-10-16 02:00:08,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:00:08,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:00:08,721 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_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c[4000,4013] [2021-10-16 02:00:08,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:08,867 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) [2021-10-16 02:00:08,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5efea7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:08, skipping insertion in model container [2021-10-16 02:00:08,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:08,869 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:00:08,871 INFO L168 Benchmark]: Toolchain (without parser) took 424.81 ms. Allocated memory is still 123.7 MB. Free memory was 84.1 MB in the beginning and 94.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:08,873 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 123.7 MB. Free memory is still 101.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:00:08,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.20 ms. Allocated memory is still 123.7 MB. Free memory was 83.9 MB in the beginning and 94.8 MB in the end (delta: -10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:08,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 123.7 MB. Free memory is still 101.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 422.20 ms. Allocated memory is still 123.7 MB. Free memory was 83.9 MB in the beginning and 94.8 MB in the end (delta: -10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 254]: 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-5709675 [2021-10-16 02:00:11,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:00:11,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:00:11,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:00:11,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:00:11,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:00:11,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:00:11,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:00:11,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:00:11,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:00:11,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:00:11,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:00:11,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:00:11,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:00:11,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:00:11,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:00:11,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:00:11,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:00:11,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:00:11,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:00:11,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:00:11,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:00:11,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:00:11,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:00:11,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:00:11,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:00:11,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:00:11,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:00:11,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:00:11,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:00:11,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:00:11,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:00:11,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:00:11,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:00:11,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:00:11,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:00:11,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:00:11,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:00:11,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:00:11,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:00:11,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:00:11,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:00:11,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:00:11,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:00:11,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:00:11,223 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:00:11,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:00:11,223 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:00:11,223 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:00:11,223 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:00:11,224 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:00:11,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:00:11,226 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:00:11,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:00:11,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:00:11,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:00:11,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:00:11,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:00:11,227 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:00:11,227 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:00:11,227 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:00:11,228 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:00:11,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:00:11,228 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:00:11,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:00:11,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:00:11,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:00:11,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:00:11,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:00:11,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:00:11,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:00:11,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:00:11,230 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:00:11,230 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:11,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:00:11,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:00:11,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:00:11,231 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_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afe4b513c16cd8a1b92d220e6bc61fd3a59f7e45 [2021-10-16 02:00:11,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:00:11,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:00:11,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:00:11,645 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:00:11,646 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:00:11,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2021-10-16 02:00:11,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/data/a2acb7864/6f659897711b4326920509682f4cc316/FLAG840307c4f [2021-10-16 02:00:12,214 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:00:12,220 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2021-10-16 02:00:12,239 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/data/a2acb7864/6f659897711b4326920509682f4cc316/FLAG840307c4f [2021-10-16 02:00:12,545 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/data/a2acb7864/6f659897711b4326920509682f4cc316 [2021-10-16 02:00:12,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:00:12,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:00:12,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:12,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:00:12,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:00:12,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5665dcb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:12, skipping insertion in model container [2021-10-16 02:00:12,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:12" (1/1) ... [2021-10-16 02:00:12,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:00:12,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:00:12,793 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_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c[4000,4013] [2021-10-16 02:00:13,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:13,033 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:00:13,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:00:13,101 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_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c[4000,4013] [2021-10-16 02:00:13,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:13,184 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:00:13,223 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_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c[4000,4013] [2021-10-16 02:00:13,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:13,307 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:00:13,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13 WrapperNode [2021-10-16 02:00:13,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:13,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:00:13,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:00:13,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:00:13,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (1/1) ... [2021-10-16 02:00:13,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (1/1) ... [2021-10-16 02:00:13,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:00:13,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:00:13,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:00:13,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:00:13,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (1/1) ... [2021-10-16 02:00:13,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (1/1) ... [2021-10-16 02:00:13,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (1/1) ... [2021-10-16 02:00:13,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (1/1) ... [2021-10-16 02:00:13,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (1/1) ... [2021-10-16 02:00:13,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (1/1) ... [2021-10-16 02:00:13,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (1/1) ... [2021-10-16 02:00:13,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:00:13,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:00:13,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:00:13,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:00:13,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (1/1) ... [2021-10-16 02:00:13,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:00:13,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:00:13,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:00:13,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:00:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:00:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:00:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:00:13,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:00:15,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:00:15,981 INFO L299 CfgBuilder]: Removed 114 assume(true) statements. [2021-10-16 02:00:15,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:15 BoogieIcfgContainer [2021-10-16 02:00:15,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:00:15,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:00:15,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:00:15,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:00:15,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:00:12" (1/3) ... [2021-10-16 02:00:15,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d650dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:00:15, skipping insertion in model container [2021-10-16 02:00:15,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:13" (2/3) ... [2021-10-16 02:00:15,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d650dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:00:15, skipping insertion in model container [2021-10-16 02:00:15,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:15" (3/3) ... [2021-10-16 02:00:15,992 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2021-10-16 02:00:16,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:00:16,002 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-16 02:00:16,055 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:00:16,062 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, mConcurrency=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 [2021-10-16 02:00:16,062 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-16 02:00:16,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 83 states have (on average 1.5542168674698795) internal successors, (129), 86 states have internal predecessors, (129), 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) [2021-10-16 02:00:16,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:00:16,082 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:16,083 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:16,083 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:16,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:16,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1847621448, now seen corresponding path program 1 times [2021-10-16 02:00:16,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:16,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888995560] [2021-10-16 02:00:16,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:16,103 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:16,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:16,106 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:16,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:00:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:16,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:00:16,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:16,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:16,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:16,454 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:16,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888995560] [2021-10-16 02:00:16,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888995560] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:16,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:16,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:00:16,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432172967] [2021-10-16 02:00:16,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:00:16,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:16,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:00:16,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:00:16,483 INFO L87 Difference]: Start difference. First operand has 87 states, 83 states have (on average 1.5542168674698795) internal successors, (129), 86 states have internal predecessors, (129), 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) [2021-10-16 02:00:16,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:16,521 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2021-10-16 02:00:16,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:00:16,523 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 [2021-10-16 02:00:16,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:16,535 INFO L225 Difference]: With dead ends: 168 [2021-10-16 02:00:16,535 INFO L226 Difference]: Without dead ends: 83 [2021-10-16 02:00:16,539 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 [2021-10-16 02:00:16,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-16 02:00:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-16 02:00:16,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 80 states have (on average 1.4625) internal successors, (117), 82 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) [2021-10-16 02:00:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2021-10-16 02:00:16,574 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2021-10-16 02:00:16,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:16,574 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2021-10-16 02:00:16,575 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) [2021-10-16 02:00:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2021-10-16 02:00:16,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-16 02:00:16,576 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:16,576 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:16,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:16,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:16,777 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:16,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:16,778 INFO L82 PathProgramCache]: Analyzing trace with hash 800864551, now seen corresponding path program 1 times [2021-10-16 02:00:16,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:16,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844178691] [2021-10-16 02:00:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:16,779 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:16,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:16,781 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:16,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:00:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:16,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:16,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:17,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:17,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:17,093 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:17,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844178691] [2021-10-16 02:00:17,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844178691] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:17,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:17,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:17,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930763322] [2021-10-16 02:00:17,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:17,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:17,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:17,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:17,098 INFO L87 Difference]: Start difference. First operand 83 states and 117 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) [2021-10-16 02:00:17,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:17,110 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2021-10-16 02:00:17,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:17,111 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 [2021-10-16 02:00:17,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:17,112 INFO L225 Difference]: With dead ends: 83 [2021-10-16 02:00:17,112 INFO L226 Difference]: Without dead ends: 37 [2021-10-16 02:00:17,113 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:17,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-16 02:00:17,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-16 02:00:17,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 36 states have internal predecessors, (52), 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) [2021-10-16 02:00:17,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2021-10-16 02:00:17,119 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2021-10-16 02:00:17,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:17,119 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2021-10-16 02:00:17,120 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) [2021-10-16 02:00:17,120 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2021-10-16 02:00:17,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 02:00:17,121 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:17,121 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] [2021-10-16 02:00:17,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:17,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:17,334 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:17,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:17,334 INFO L82 PathProgramCache]: Analyzing trace with hash -2126819203, now seen corresponding path program 1 times [2021-10-16 02:00:17,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:17,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469373969] [2021-10-16 02:00:17,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:17,337 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:17,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:17,339 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:17,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:00:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:17,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:17,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:17,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:17,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:17,756 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:17,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469373969] [2021-10-16 02:00:17,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469373969] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:17,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:17,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:00:17,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137719053] [2021-10-16 02:00:17,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:17,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:17,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:17,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:17,764 INFO L87 Difference]: Start difference. First operand 37 states and 52 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) [2021-10-16 02:00:17,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:17,785 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2021-10-16 02:00:17,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:17,789 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 [2021-10-16 02:00:17,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:17,790 INFO L225 Difference]: With dead ends: 68 [2021-10-16 02:00:17,790 INFO L226 Difference]: Without dead ends: 37 [2021-10-16 02:00:17,791 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:17,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-16 02:00:17,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-16 02:00:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 36 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:17,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2021-10-16 02:00:17,797 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2021-10-16 02:00:17,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:17,797 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2021-10-16 02:00:17,798 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) [2021-10-16 02:00:17,798 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2021-10-16 02:00:17,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-16 02:00:17,803 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:17,803 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] [2021-10-16 02:00:17,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-16 02:00:18,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:18,005 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:18,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:18,006 INFO L82 PathProgramCache]: Analyzing trace with hash -306622024, now seen corresponding path program 1 times [2021-10-16 02:00:18,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:18,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850872157] [2021-10-16 02:00:18,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:18,007 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:18,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:18,008 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:18,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:00:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:18,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:18,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:18,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:18,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:18,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:18,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850872157] [2021-10-16 02:00:18,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850872157] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:18,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:18,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:18,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864478788] [2021-10-16 02:00:18,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:18,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:18,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:18,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:18,362 INFO L87 Difference]: Start difference. First operand 37 states and 51 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) [2021-10-16 02:00:18,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:18,421 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2021-10-16 02:00:18,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:18,422 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 [2021-10-16 02:00:18,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:18,425 INFO L225 Difference]: With dead ends: 89 [2021-10-16 02:00:18,426 INFO L226 Difference]: Without dead ends: 58 [2021-10-16 02:00:18,426 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 [2021-10-16 02:00:18,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-16 02:00:18,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2021-10-16 02:00:18,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 55 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:18,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2021-10-16 02:00:18,441 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2021-10-16 02:00:18,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:18,442 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2021-10-16 02:00:18,442 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) [2021-10-16 02:00:18,442 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2021-10-16 02:00:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-16 02:00:18,444 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:18,444 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] [2021-10-16 02:00:18,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:18,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:18,656 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:18,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:18,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1880803796, now seen corresponding path program 1 times [2021-10-16 02:00:18,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:18,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026433147] [2021-10-16 02:00:18,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:18,658 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:18,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:18,659 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:18,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:00:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:18,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:00:18,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:18,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:18,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:19,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:00:19,118 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:19,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026433147] [2021-10-16 02:00:19,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026433147] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:19,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:19,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-16 02:00:19,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908219265] [2021-10-16 02:00:19,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:00:19,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:19,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:00:19,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:00:19,125 INFO L87 Difference]: Start difference. First operand 56 states and 78 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) [2021-10-16 02:00:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:19,399 INFO L93 Difference]: Finished difference Result 390 states and 569 transitions. [2021-10-16 02:00:19,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-16 02:00:19,400 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 [2021-10-16 02:00:19,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:19,403 INFO L225 Difference]: With dead ends: 390 [2021-10-16 02:00:19,403 INFO L226 Difference]: Without dead ends: 340 [2021-10-16 02:00:19,404 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 123.9ms TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-10-16 02:00:19,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-10-16 02:00:19,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 140. [2021-10-16 02:00:19,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.3884892086330936) internal successors, (193), 139 states have internal predecessors, (193), 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) [2021-10-16 02:00:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2021-10-16 02:00:19,433 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 29 [2021-10-16 02:00:19,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:19,434 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2021-10-16 02:00:19,434 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) [2021-10-16 02:00:19,434 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2021-10-16 02:00:19,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-16 02:00:19,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:19,443 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, 1, 1, 1] [2021-10-16 02:00:19,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:19,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:19,644 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:19,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:19,645 INFO L82 PathProgramCache]: Analyzing trace with hash -130752981, now seen corresponding path program 1 times [2021-10-16 02:00:19,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:19,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64923673] [2021-10-16 02:00:19,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:19,646 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:19,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:19,647 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:19,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 02:00:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:19,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:00:19,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:00:20,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:20,155 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:00:20,156 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:20,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64923673] [2021-10-16 02:00:20,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64923673] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:20,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:20,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-16 02:00:20,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986105141] [2021-10-16 02:00:20,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:00:20,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:20,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:00:20,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:00:20,158 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 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) [2021-10-16 02:00:20,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:20,222 INFO L93 Difference]: Finished difference Result 388 states and 531 transitions. [2021-10-16 02:00:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:00:20,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 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 47 [2021-10-16 02:00:20,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:20,225 INFO L225 Difference]: With dead ends: 388 [2021-10-16 02:00:20,225 INFO L226 Difference]: Without dead ends: 254 [2021-10-16 02:00:20,229 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:00:20,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-10-16 02:00:20,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 149. [2021-10-16 02:00:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.364864864864865) internal successors, (202), 148 states have internal predecessors, (202), 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) [2021-10-16 02:00:20,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 202 transitions. [2021-10-16 02:00:20,270 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 202 transitions. Word has length 47 [2021-10-16 02:00:20,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:20,270 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 202 transitions. [2021-10-16 02:00:20,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 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) [2021-10-16 02:00:20,271 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 202 transitions. [2021-10-16 02:00:20,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-16 02:00:20,278 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:20,278 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, 1, 1, 1] [2021-10-16 02:00:20,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:20,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:20,487 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:20,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:20,487 INFO L82 PathProgramCache]: Analyzing trace with hash -640226071, now seen corresponding path program 1 times [2021-10-16 02:00:20,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:20,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056832679] [2021-10-16 02:00:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:20,488 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:20,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:20,489 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:20,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 02:00:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:20,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:00:20,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:00:20,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:00:20,982 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:20,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056832679] [2021-10-16 02:00:20,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056832679] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:20,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:20,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:00:20,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519633297] [2021-10-16 02:00:20,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:00:20,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:20,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:00:20,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:00:20,984 INFO L87 Difference]: Start difference. First operand 149 states and 202 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2021-10-16 02:00:21,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:21,031 INFO L93 Difference]: Finished difference Result 337 states and 458 transitions. [2021-10-16 02:00:21,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:00:21,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) Word has length 47 [2021-10-16 02:00:21,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:21,033 INFO L225 Difference]: With dead ends: 337 [2021-10-16 02:00:21,033 INFO L226 Difference]: Without dead ends: 194 [2021-10-16 02:00:21,034 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:00:21,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-16 02:00:21,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 123. [2021-10-16 02:00:21,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 122 states have internal predecessors, (164), 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) [2021-10-16 02:00:21,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 164 transitions. [2021-10-16 02:00:21,050 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 164 transitions. Word has length 47 [2021-10-16 02:00:21,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:21,051 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 164 transitions. [2021-10-16 02:00:21,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2021-10-16 02:00:21,051 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 164 transitions. [2021-10-16 02:00:21,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-16 02:00:21,052 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:21,052 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, 1, 1, 1] [2021-10-16 02:00:21,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:21,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:21,265 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:21,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:21,266 INFO L82 PathProgramCache]: Analyzing trace with hash -445753367, now seen corresponding path program 1 times [2021-10-16 02:00:21,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:21,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983067997] [2021-10-16 02:00:21,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:21,267 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:21,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:21,268 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:21,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 02:00:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:21,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:00:21,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:21,725 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:00:21,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:00:21,965 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:21,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983067997] [2021-10-16 02:00:21,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983067997] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:00:21,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2082853409] [2021-10-16 02:00:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:21,966 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:21,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:00:21,968 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:00:22,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-16 02:00:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:22,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:00:22,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:22,481 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:00:22,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:00:22,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2082853409] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:00:22,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302476864] [2021-10-16 02:00:22,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:22,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:00:22,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:00:22,639 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:00:22,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-16 02:00:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:22,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:00:22,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:23,140 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:00:23,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:00:23,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302476864] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:00:23,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:00:23,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-16 02:00:23,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540129821] [2021-10-16 02:00:23,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 02:00:23,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:23,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 02:00:23,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:00:23,315 INFO L87 Difference]: Start difference. First operand 123 states and 164 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 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) [2021-10-16 02:00:25,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:25,261 INFO L93 Difference]: Finished difference Result 751 states and 1038 transitions. [2021-10-16 02:00:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-16 02:00:25,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 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 48 [2021-10-16 02:00:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:25,266 INFO L225 Difference]: With dead ends: 751 [2021-10-16 02:00:25,266 INFO L226 Difference]: Without dead ends: 657 [2021-10-16 02:00:25,267 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 290.8ms TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-10-16 02:00:25,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-10-16 02:00:25,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 223. [2021-10-16 02:00:25,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.3693693693693694) internal successors, (304), 222 states have internal predecessors, (304), 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) [2021-10-16 02:00:25,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 304 transitions. [2021-10-16 02:00:25,301 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 304 transitions. Word has length 48 [2021-10-16 02:00:25,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:25,301 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 304 transitions. [2021-10-16 02:00:25,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 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) [2021-10-16 02:00:25,302 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 304 transitions. [2021-10-16 02:00:25,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-16 02:00:25,303 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:25,304 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, 1, 1, 1] [2021-10-16 02:00:25,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:25,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:25,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:25,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:25,920 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:25,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:25,921 INFO L82 PathProgramCache]: Analyzing trace with hash -2129580319, now seen corresponding path program 2 times [2021-10-16 02:00:25,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:25,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19391026] [2021-10-16 02:00:25,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:00:25,921 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:25,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:25,922 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:25,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 02:00:27,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:00:27,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-16 02:00:27,263 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:00:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:00:28,150 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-16 02:00:28,150 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:00:28,151 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:00:28,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:00:28,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:00:28,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:28,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:28,372 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:00:28,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:00:28 BoogieIcfgContainer [2021-10-16 02:00:28,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:00:28,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:00:28,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:00:28,527 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:00:28,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:15" (3/4) ... [2021-10-16 02:00:28,530 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:00:28,655 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:00:28,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:00:28,657 INFO L168 Benchmark]: Toolchain (without parser) took 16106.76 ms. Allocated memory was 60.8 MB in the beginning and 100.7 MB in the end (delta: 39.8 MB). Free memory was 37.9 MB in the beginning and 56.4 MB in the end (delta: -18.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:28,657 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory was 41.8 MB in the beginning and 41.8 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:00:28,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.18 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 37.8 MB in the beginning and 53.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:28,658 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.48 ms. Allocated memory is still 83.9 MB. Free memory was 53.1 MB in the beginning and 50.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:28,658 INFO L168 Benchmark]: Boogie Preprocessor took 76.65 ms. Allocated memory is still 83.9 MB. Free memory was 50.0 MB in the beginning and 47.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:28,659 INFO L168 Benchmark]: RCFGBuilder took 2498.10 ms. Allocated memory is still 83.9 MB. Free memory was 47.6 MB in the beginning and 42.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:28,659 INFO L168 Benchmark]: TraceAbstraction took 12540.64 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 41.6 MB in the beginning and 37.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:28,659 INFO L168 Benchmark]: Witness Printer took 128.41 ms. Allocated memory is still 100.7 MB. Free memory was 37.0 MB in the beginning and 56.4 MB in the end (delta: -19.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:28,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory was 41.8 MB in the beginning and 41.8 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 757.18 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 37.8 MB in the beginning and 53.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.48 ms. Allocated memory is still 83.9 MB. Free memory was 53.1 MB in the beginning and 50.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.65 ms. Allocated memory is still 83.9 MB. Free memory was 50.0 MB in the beginning and 47.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2498.10 ms. Allocated memory is still 83.9 MB. Free memory was 47.6 MB in the beginning and 42.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12540.64 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 41.6 MB in the beginning and 37.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. * Witness Printer took 128.41 ms. Allocated memory is still 100.7 MB. Free memory was 37.0 MB in the beginning and 56.4 MB in the end (delta: -19.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 221]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L395] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int pumpRunning = 0; [L663] int systemActive = 1; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L595] int splverifierCounter ; [L596] int tmp ; [L597] int tmp___0 ; [L598] int tmp___1 ; [L599] int tmp___2 ; [L602] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L604] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L612] tmp = __VERIFIER_nondet_int() [L614] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] tmp___0 = __VERIFIER_nondet_int() [L624] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L632] tmp___2 = __VERIFIER_nondet_int() [L634] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L669] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L676] COND TRUE \read(systemActive) [L698] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L701] COND TRUE ! pumpRunning [L813] int retValue_acc ; [L814] int tmp ; [L815] int tmp___0 ; [L137] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L819] tmp = isHighWaterSensorDry() [L821] COND FALSE !(\read(tmp)) [L824] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L826] retValue_acc = tmp___0 [L827] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L703] tmp = isHighWaterLevel() [L705] COND TRUE \read(tmp) [L732] int tmp ; [L757] int retValue_acc ; [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L761] retValue_acc = isMethaneLevelCritical() [L763] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L736] tmp = isMethaneAlarm() [L738] COND FALSE !(\read(tmp)) [L726] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L154] int tmp ; [L155] int tmp___0 ; [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L159] tmp = getWaterLevel() [L161] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L604] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L606] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L612] tmp = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L622] tmp___0 = __VERIFIER_nondet_int() [L624] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L632] tmp___2 = __VERIFIER_nondet_int() [L634] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L669] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L676] COND TRUE \read(systemActive) [L698] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L701] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L154] int tmp ; [L155] int tmp___0 ; [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L159] tmp = getWaterLevel() [L161] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L604] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L606] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L612] tmp = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] tmp___0 = __VERIFIER_nondet_int() [L624] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L632] tmp___2 = __VERIFIER_nondet_int() [L634] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L669] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L676] COND TRUE \read(systemActive) [L698] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L701] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L154] int tmp ; [L155] int tmp___0 ; [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L159] tmp = getWaterLevel() [L161] COND TRUE tmp == 0 [L768] int retValue_acc ; [L771] retValue_acc = pumpRunning [L772] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L163] tmp___0 = isPumpRunning() [L165] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L221] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - UnprovableResult [Line: 221]: 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: 221]: 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, 87 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 12316.4ms, OverallIterations: 9, TraceHistogramMax: 3, EmptinessCheckTime: 36.8ms, AutomataDifference: 2544.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 632 SDtfs, 1332 SDslu, 1471 SDs, 0 SdLazy, 294 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1716.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 702 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 485.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred 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: 166.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 812 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 266.0ms SsaConstructionTime, 2170.5ms SatisfiabilityAnalysisTime, 2521.0ms InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 670 ConstructedInterpolants, 0 QuantifiedInterpolants, 1568 SizeOfPredicates, 18 NumberOfNonLiveVariables, 2142 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 86/140 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! [2021-10-16 02:00:28,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dfaf5d1-7474-4c34-9108-bd1d32f8b196/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...