./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc ............................................................................................................................................ 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_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:07:25,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:07:25,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:07:25,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:07:25,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:07:25,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:07:25,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:07:25,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:07:25,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:07:25,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:07:25,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:07:25,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:07:25,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:07:25,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:07:25,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:07:25,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:07:25,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:07:25,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:07:25,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:07:25,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:07:25,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:07:25,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:07:25,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:07:25,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:07:25,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:07:25,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:07:25,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:07:25,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:07:25,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:07:25,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:07:25,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:07:25,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:07:25,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:07:25,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:07:25,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:07:25,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:07:25,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:07:25,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:07:25,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:07:25,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:07:25,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:07:25,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:07:25,227 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:07:25,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:07:25,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:07:25,230 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:07:25,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:07:25,230 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:07:25,231 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:07:25,231 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:07:25,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:07:25,239 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:07:25,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:07:25,241 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:07:25,242 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:07:25,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:07:25,242 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:07:25,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:07:25,244 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:07:25,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:07:25,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:07:25,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:07:25,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:07:25,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:07:25,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:07:25,246 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:07:25,246 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:07:25,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:07:25,247 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:07:25,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:07:25,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:07:25,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:07:25,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:07:25,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:07:25,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:07:25,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:07:25,252 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:07:25,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:07:25,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:07:25,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:07:25,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:07:25,253 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_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc [2021-10-24 10:07:25,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:07:25,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:07:25,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:07:25,645 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:07:25,646 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:07:25,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2021-10-24 10:07:25,721 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/data/c4a8794a1/e65c58b9eeef41fda64a514744f4aac5/FLAG6158f00f2 [2021-10-24 10:07:26,380 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:07:26,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2021-10-24 10:07:26,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/data/c4a8794a1/e65c58b9eeef41fda64a514744f4aac5/FLAG6158f00f2 [2021-10-24 10:07:26,671 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/data/c4a8794a1/e65c58b9eeef41fda64a514744f4aac5 [2021-10-24 10:07:26,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:07:26,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:07:26,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:07:26,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:07:26,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:07:26,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:07:26" (1/1) ... [2021-10-24 10:07:26,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7c223d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:26, skipping insertion in model container [2021-10-24 10:07:26,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:07:26" (1/1) ... [2021-10-24 10:07:26,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:07:26,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:07:27,021 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_495d7e3c-6cee-4ac5-bc45-0595aa773b88/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c[3343,3356] [2021-10-24 10:07:27,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:07:27,196 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 10:07:27,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@32647d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:27, skipping insertion in model container [2021-10-24 10:07:27,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:07:27,198 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:07:27,201 INFO L168 Benchmark]: Toolchain (without parser) took 523.87 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 55.5 MB in the beginning and 89.3 MB in the end (delta: -33.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:07:27,202 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 90.2 MB. Free memory was 69.3 MB in the beginning and 69.2 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:07:27,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.29 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 55.3 MB in the beginning and 89.3 MB in the end (delta: -34.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:07:27,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 90.2 MB. Free memory was 69.3 MB in the beginning and 69.2 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 521.29 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 55.3 MB in the beginning and 89.3 MB in the end (delta: -34.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 563]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:07:29,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:07:29,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:07:29,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:07:29,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:07:29,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:07:29,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:07:29,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:07:29,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:07:29,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:07:29,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:07:29,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:07:29,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:07:29,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:07:29,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:07:29,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:07:29,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:07:29,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:07:29,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:07:29,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:07:29,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:07:29,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:07:29,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:07:29,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:07:29,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:07:29,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:07:29,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:07:29,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:07:29,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:07:29,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:07:29,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:07:29,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:07:29,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:07:29,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:07:29,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:07:29,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:07:29,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:07:29,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:07:29,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:07:29,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:07:29,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:07:29,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:07:29,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:07:29,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:07:29,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:07:29,983 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:07:29,984 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:07:29,984 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:07:29,984 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:07:29,985 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:07:29,985 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:07:29,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:07:29,988 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:07:29,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:07:29,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:07:29,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:07:29,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:07:29,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:07:29,990 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:07:29,990 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:07:29,990 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:07:29,991 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:07:29,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:07:29,991 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:07:29,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:07:29,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:07:29,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:07:29,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:07:29,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:07:29,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:07:29,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:07:29,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:07:29,994 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:07:29,994 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:07:29,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:07:29,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:07:29,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:07:29,996 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_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc [2021-10-24 10:07:30,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:07:30,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:07:30,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:07:30,538 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:07:30,539 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:07:30,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2021-10-24 10:07:30,630 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/data/26f6e3060/3a6b3158c5d24297a412fe3f27b5d34f/FLAG0f638c31d [2021-10-24 10:07:31,212 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:07:31,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2021-10-24 10:07:31,239 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/data/26f6e3060/3a6b3158c5d24297a412fe3f27b5d34f/FLAG0f638c31d [2021-10-24 10:07:31,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/data/26f6e3060/3a6b3158c5d24297a412fe3f27b5d34f [2021-10-24 10:07:31,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:07:31,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:07:31,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:07:31,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:07:31,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:07:31,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:07:31" (1/1) ... [2021-10-24 10:07:31,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51adb6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:31, skipping insertion in model container [2021-10-24 10:07:31,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:07:31" (1/1) ... [2021-10-24 10:07:31,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:07:31,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:07:31,927 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_495d7e3c-6cee-4ac5-bc45-0595aa773b88/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c[3343,3356] [2021-10-24 10:07:32,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:07:32,116 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:07:32,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:07:32,141 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_495d7e3c-6cee-4ac5-bc45-0595aa773b88/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c[3343,3356] [2021-10-24 10:07:32,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:07:32,231 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:07:32,253 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_495d7e3c-6cee-4ac5-bc45-0595aa773b88/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c[3343,3356] [2021-10-24 10:07:32,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:07:32,353 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:07:32,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32 WrapperNode [2021-10-24 10:07:32,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:07:32,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:07:32,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:07:32,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:07:32,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (1/1) ... [2021-10-24 10:07:32,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (1/1) ... [2021-10-24 10:07:32,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:07:32,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:07:32,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:07:32,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:07:32,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (1/1) ... [2021-10-24 10:07:32,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (1/1) ... [2021-10-24 10:07:32,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (1/1) ... [2021-10-24 10:07:32,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (1/1) ... [2021-10-24 10:07:32,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (1/1) ... [2021-10-24 10:07:32,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (1/1) ... [2021-10-24 10:07:32,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (1/1) ... [2021-10-24 10:07:32,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:07:32,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:07:32,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:07:32,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:07:32,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (1/1) ... [2021-10-24 10:07:32,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:07:32,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:07:32,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:07:32,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:07:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:07:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:07:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:07:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:07:35,400 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:07:35,401 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-24 10:07:35,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:07:35 BoogieIcfgContainer [2021-10-24 10:07:35,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:07:35,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:07:35,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:07:35,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:07:35,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:07:31" (1/3) ... [2021-10-24 10:07:35,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b9f463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:07:35, skipping insertion in model container [2021-10-24 10:07:35,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:32" (2/3) ... [2021-10-24 10:07:35,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b9f463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:07:35, skipping insertion in model container [2021-10-24 10:07:35,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:07:35" (3/3) ... [2021-10-24 10:07:35,412 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2021-10-24 10:07:35,417 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:07:35,418 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:07:35,469 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:07:35,476 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:07:35,476 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:07:35,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:35,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:07:35,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:07:35,507 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:07:35,508 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:07:35,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:07:35,518 INFO L82 PathProgramCache]: Analyzing trace with hash 452053251, now seen corresponding path program 1 times [2021-10-24 10:07:35,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:07:35,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464793304] [2021-10-24 10:07:35,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:07:35,535 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:07:35,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:07:35,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:07:35,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:07:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:07:35,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:07:35,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:07:35,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:07:35,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:07:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:07:35,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:07:35,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464793304] [2021-10-24 10:07:35,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464793304] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:07:35,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:07:35,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:07:35,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256891746] [2021-10-24 10:07:35,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:07:35,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:07:35,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:07:35,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:07:35,928 INFO L87 Difference]: Start difference. First operand has 75 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 74 states have internal predecessors, (111), 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 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:35,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:07:35,954 INFO L93 Difference]: Finished difference Result 144 states and 215 transitions. [2021-10-24 10:07:35,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:07:35,955 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2021-10-24 10:07:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:07:35,966 INFO L225 Difference]: With dead ends: 144 [2021-10-24 10:07:35,966 INFO L226 Difference]: Without dead ends: 71 [2021-10-24 10:07:35,969 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:07:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-24 10:07:36,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-24 10:07:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.4558823529411764) internal successors, (99), 70 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:36,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2021-10-24 10:07:36,010 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2021-10-24 10:07:36,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:07:36,011 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2021-10-24 10:07:36,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:36,011 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2021-10-24 10:07:36,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:07:36,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:07:36,013 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:07:36,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:07:36,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:07:36,223 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:07:36,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:07:36,224 INFO L82 PathProgramCache]: Analyzing trace with hash -458977502, now seen corresponding path program 1 times [2021-10-24 10:07:36,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:07:36,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198364920] [2021-10-24 10:07:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:07:36,225 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:07:36,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:07:36,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:07:36,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:07:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:07:36,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:07:36,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:07:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:07:36,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:07:36,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:07:36,589 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:07:36,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198364920] [2021-10-24 10:07:36,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198364920] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:07:36,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:07:36,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:07:36,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346495136] [2021-10-24 10:07:36,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:07:36,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:07:36,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:07:36,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:07:36,601 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:36,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:07:36,636 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2021-10-24 10:07:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:07:36,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 19 [2021-10-24 10:07:36,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:07:36,639 INFO L225 Difference]: With dead ends: 71 [2021-10-24 10:07:36,639 INFO L226 Difference]: Without dead ends: 33 [2021-10-24 10:07:36,640 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:07:36,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-24 10:07:36,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-24 10:07:36,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.4375) internal successors, (46), 32 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:36,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2021-10-24 10:07:36,659 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2021-10-24 10:07:36,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:07:36,660 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2021-10-24 10:07:36,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:36,661 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2021-10-24 10:07:36,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:07:36,663 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:07:36,668 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:07:36,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:07:36,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:07:36,884 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:07:36,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:07:36,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1835969560, now seen corresponding path program 1 times [2021-10-24 10:07:36,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:07:36,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494901251] [2021-10-24 10:07:36,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:07:36,886 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:07:36,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:07:36,892 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:07:36,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:07:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:07:37,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:07:37,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:07:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:07:37,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:07:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:07:37,357 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:07:37,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494901251] [2021-10-24 10:07:37,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494901251] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:07:37,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:07:37,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 10:07:37,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735485556] [2021-10-24 10:07:37,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:07:37,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:07:37,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:07:37,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:07:37,363 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:37,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:07:37,384 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2021-10-24 10:07:37,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:07:37,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 10:07:37,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:07:37,386 INFO L225 Difference]: With dead ends: 60 [2021-10-24 10:07:37,386 INFO L226 Difference]: Without dead ends: 33 [2021-10-24 10:07:37,388 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:07:37,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-24 10:07:37,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-24 10:07:37,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.40625) internal successors, (45), 32 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) [2021-10-24 10:07:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2021-10-24 10:07:37,406 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2021-10-24 10:07:37,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:07:37,406 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2021-10-24 10:07:37,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:37,408 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2021-10-24 10:07:37,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 10:07:37,410 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:07:37,410 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:07:37,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:07:37,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:07:37,636 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:07:37,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:07:37,636 INFO L82 PathProgramCache]: Analyzing trace with hash -678170013, now seen corresponding path program 1 times [2021-10-24 10:07:37,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:07:37,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899923292] [2021-10-24 10:07:37,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:07:37,638 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:07:37,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:07:37,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:07:37,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:07:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:07:37,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:07:37,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:07:38,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:07:38,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:07:38,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:07:38,160 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:07:38,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899923292] [2021-10-24 10:07:38,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899923292] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:07:38,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:07:38,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 10:07:38,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090407744] [2021-10-24 10:07:38,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:07:38,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:07:38,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:07:38,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:07:38,166 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:38,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:07:38,509 INFO L93 Difference]: Finished difference Result 308 states and 461 transitions. [2021-10-24 10:07:38,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 10:07:38,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-24 10:07:38,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:07:38,513 INFO L225 Difference]: With dead ends: 308 [2021-10-24 10:07:38,514 INFO L226 Difference]: Without dead ends: 281 [2021-10-24 10:07:38,515 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 159.6ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 10:07:38,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-10-24 10:07:38,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 78. [2021-10-24 10:07:38,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4155844155844155) internal successors, (109), 77 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:38,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2021-10-24 10:07:38,549 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 25 [2021-10-24 10:07:38,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:07:38,552 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2021-10-24 10:07:38,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:07:38,552 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2021-10-24 10:07:38,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 10:07:38,555 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:07:38,555 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:07:38,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:07:38,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:07:38,779 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:07:38,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:07:38,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1657488293, now seen corresponding path program 1 times [2021-10-24 10:07:38,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:07:38,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909370857] [2021-10-24 10:07:38,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:07:38,781 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:07:38,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:07:38,782 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:07:38,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:07:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:07:40,100 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:07:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:07:41,485 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:07:41,485 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:07:41,487 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:07:41,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:07:41,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:07:41,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:07:41,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:07:41,717 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:07:41,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:07:41 BoogieIcfgContainer [2021-10-24 10:07:41,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:07:41,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:07:41,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:07:41,845 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:07:41,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:07:35" (3/4) ... [2021-10-24 10:07:41,847 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:07:41,955 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:07:41,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:07:41,958 INFO L168 Benchmark]: Toolchain (without parser) took 10445.33 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 39.2 MB in the beginning and 31.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:07:41,958 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 60.8 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:07:41,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.80 ms. Allocated memory is still 60.8 MB. Free memory was 39.0 MB in the beginning and 29.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:07:41,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.05 ms. Allocated memory is still 60.8 MB. Free memory was 28.8 MB in the beginning and 25.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:07:41,970 INFO L168 Benchmark]: Boogie Preprocessor took 54.65 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 25.9 MB in the beginning and 53.9 MB in the end (delta: -28.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:07:41,971 INFO L168 Benchmark]: RCFGBuilder took 2922.42 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 50.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:07:41,971 INFO L168 Benchmark]: TraceAbstraction took 6438.70 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 49.6 MB in the beginning and 42.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:07:41,972 INFO L168 Benchmark]: Witness Printer took 111.87 ms. Allocated memory is still 88.1 MB. Free memory was 42.0 MB in the beginning and 31.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:07:41,975 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 60.8 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 839.80 ms. Allocated memory is still 60.8 MB. Free memory was 39.0 MB in the beginning and 29.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.05 ms. Allocated memory is still 60.8 MB. Free memory was 28.8 MB in the beginning and 25.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.65 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 25.9 MB in the beginning and 53.9 MB in the end (delta: -28.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2922.42 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 50.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6438.70 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 49.6 MB in the beginning and 42.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. * Witness Printer took 111.87 ms. Allocated memory is still 88.1 MB. Free memory was 42.0 MB in the beginning and 31.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 178]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L183] int cleanupTimeShifts = 4; [L285] int pumpRunning = 0; [L286] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L259] int retValue_acc ; [L260] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L471] int splverifierCounter ; [L472] int tmp ; [L473] int tmp___0 ; [L474] int tmp___1 ; [L475] int tmp___2 ; [L478] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L482] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L488] tmp = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] COND TRUE waterLevel < 2 [L75] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] tmp___0 = __VERIFIER_nondet_int() [L500] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] tmp___2 = __VERIFIER_nondet_int() [L510] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L293] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] COND TRUE \read(systemActive) [L322] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L437] int tmp ; [L438] int tmp___0 ; [L439] int tmp___1 ; [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] tmp = isMethaneLevelCritical() [L445] COND FALSE !(\read(tmp)) [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] tmp___0 = getWaterLevel() [L451] COND TRUE tmp___0 == 2 [L391] int retValue_acc ; [L394] retValue_acc = pumpRunning [L395] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L453] tmp___1 = isPumpRunning() [L455] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L178] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 178]: 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: 178]: 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, 75 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6248.4ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 26.1ms, AutomataDifference: 488.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 264 SDtfs, 421 SDslu, 546 SDs, 0 SdLazy, 94 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 116.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 180.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 95.2ms AutomataMinimizationTime, 4 MinimizatonAttempts, 203 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 129.3ms SsaConstructionTime, 1664.1ms SatisfiabilityAnalysisTime, 894.5ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 352 SizeOfPredicates, 4 NumberOfNonLiveVariables, 790 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 10:07:42,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495d7e3c-6cee-4ac5-bc45-0595aa773b88/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...