./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8 --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 064e408d9f8eb6588718dabe79f6e3f439ef5ca6 ............................................................................................................................................ 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_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8 --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 064e408d9f8eb6588718dabe79f6e3f439ef5ca6 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 06:48:24,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:48:24,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:48:24,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:48:24,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:48:24,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:48:24,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:48:24,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:48:24,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:48:24,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:48:24,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:48:24,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:48:24,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:48:24,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:48:24,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:48:24,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:48:24,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:48:24,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:48:24,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:48:24,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:48:24,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:48:24,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:48:24,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:48:24,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:48:24,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:48:24,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:48:24,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:48:24,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:48:24,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:48:24,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:48:24,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:48:24,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:48:24,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:48:24,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:48:24,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:48:24,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:48:24,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:48:24,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:48:24,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:48:24,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:48:24,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:48:24,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:48:24,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:48:24,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:48:24,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:48:24,413 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:48:24,414 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:48:24,414 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:48:24,414 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:48:24,415 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:48:24,415 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:48:24,416 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:48:24,416 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:48:24,416 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:48:24,417 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:48:24,417 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:48:24,418 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:48:24,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:48:24,419 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:48:24,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:48:24,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:48:24,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:48:24,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:48:24,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:48:24,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:48:24,421 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:48:24,421 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:48:24,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:48:24,422 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:48:24,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:48:24,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:48:24,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:48:24,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:48:24,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:48:24,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:48:24,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:48:24,424 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:48:24,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:48:24,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:48:24,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:48:24,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:48:24,425 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_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 064e408d9f8eb6588718dabe79f6e3f439ef5ca6 [2021-10-13 06:48:24,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:48:24,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:48:24,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:48:24,672 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:48:24,672 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:48:24,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-13 06:48:24,747 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/data/563235405/b6b55126d5874f3cb4cb7f4b8e0ef4de/FLAGe7e997321 [2021-10-13 06:48:25,250 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:48:25,251 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-13 06:48:25,265 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/data/563235405/b6b55126d5874f3cb4cb7f4b8e0ef4de/FLAGe7e997321 [2021-10-13 06:48:25,576 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/data/563235405/b6b55126d5874f3cb4cb7f4b8e0ef4de [2021-10-13 06:48:25,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:48:25,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:48:25,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:48:25,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:48:25,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:48:25,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:48:25" (1/1) ... [2021-10-13 06:48:25,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a3787b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:25, skipping insertion in model container [2021-10-13 06:48:25,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:48:25" (1/1) ... [2021-10-13 06:48:25,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:48:25,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:48:25,925 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_c42ca606-1766-464c-8435-d7ba02b693ab/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[14819,14832] [2021-10-13 06:48:25,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:48:25,972 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) [2021-10-13 06:48:25,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@11e451ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:25, skipping insertion in model container [2021-10-13 06:48:25,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:48:25,984 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 06:48:25,986 INFO L168 Benchmark]: Toolchain (without parser) took 405.59 ms. Allocated memory is still 151.0 MB. Free memory was 117.2 MB in the beginning and 123.5 MB in the end (delta: -6.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:48:25,987 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:48:25,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.56 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 123.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:48:25,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 396.56 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 123.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 70]: 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-4e77c04 [2021-10-13 06:48:28,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:48:28,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:48:28,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:48:28,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:48:28,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:48:28,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:48:28,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:48:28,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:48:28,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:48:28,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:48:28,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:48:28,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:48:28,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:48:28,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:48:28,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:48:28,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:48:28,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:48:28,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:48:28,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:48:28,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:48:28,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:48:28,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:48:28,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:48:28,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:48:28,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:48:28,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:48:28,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:48:28,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:48:28,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:48:28,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:48:28,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:48:28,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:48:28,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:48:28,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:48:28,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:48:28,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:48:28,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:48:28,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:48:28,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:48:28,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:48:28,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:48:28,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:48:28,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:48:28,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:48:28,375 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:48:28,375 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:48:28,375 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:48:28,376 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:48:28,376 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:48:28,376 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:48:28,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:48:28,377 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:48:28,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:48:28,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:48:28,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:48:28,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:48:28,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:48:28,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:48:28,379 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:48:28,379 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:48:28,379 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:48:28,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:48:28,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:48:28,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:48:28,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:48:28,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:48:28,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:48:28,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:48:28,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:48:28,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:48:28,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:48:28,383 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:48:28,383 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:48:28,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:48:28,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:48:28,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:48:28,384 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_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 064e408d9f8eb6588718dabe79f6e3f439ef5ca6 [2021-10-13 06:48:28,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:48:28,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:48:28,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:48:28,772 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:48:28,773 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:48:28,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-13 06:48:28,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/data/96753cd2b/0e6d671f515647138f7187ce545655bf/FLAGe72703bd4 [2021-10-13 06:48:29,381 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:48:29,382 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-13 06:48:29,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/data/96753cd2b/0e6d671f515647138f7187ce545655bf/FLAGe72703bd4 [2021-10-13 06:48:29,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/data/96753cd2b/0e6d671f515647138f7187ce545655bf [2021-10-13 06:48:29,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:48:29,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:48:29,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:48:29,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:48:29,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:48:29,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:48:29" (1/1) ... [2021-10-13 06:48:29,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618308d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:29, skipping insertion in model container [2021-10-13 06:48:29,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:48:29" (1/1) ... [2021-10-13 06:48:29,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:48:29,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:48:30,209 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_c42ca606-1766-464c-8435-d7ba02b693ab/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[14819,14832] [2021-10-13 06:48:30,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:48:30,269 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 06:48:30,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:48:30,376 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_c42ca606-1766-464c-8435-d7ba02b693ab/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[14819,14832] [2021-10-13 06:48:30,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:48:30,407 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:48:30,479 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_c42ca606-1766-464c-8435-d7ba02b693ab/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[14819,14832] [2021-10-13 06:48:30,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:48:30,521 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:48:30,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30 WrapperNode [2021-10-13 06:48:30,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:48:30,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:48:30,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:48:30,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:48:30,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (1/1) ... [2021-10-13 06:48:30,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (1/1) ... [2021-10-13 06:48:30,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:48:30,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:48:30,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:48:30,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:48:30,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (1/1) ... [2021-10-13 06:48:30,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (1/1) ... [2021-10-13 06:48:30,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (1/1) ... [2021-10-13 06:48:30,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (1/1) ... [2021-10-13 06:48:30,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (1/1) ... [2021-10-13 06:48:30,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (1/1) ... [2021-10-13 06:48:30,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (1/1) ... [2021-10-13 06:48:30,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:48:30,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:48:30,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:48:30,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:48:30,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (1/1) ... [2021-10-13 06:48:30,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:48:30,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:48:30,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:48:30,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:48:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:48:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:48:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:48:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:48:33,143 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:48:33,143 INFO L299 CfgBuilder]: Removed 202 assume(true) statements. [2021-10-13 06:48:33,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:48:33 BoogieIcfgContainer [2021-10-13 06:48:33,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:48:33,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:48:33,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:48:33,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:48:33,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:48:29" (1/3) ... [2021-10-13 06:48:33,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5326620c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:48:33, skipping insertion in model container [2021-10-13 06:48:33,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:30" (2/3) ... [2021-10-13 06:48:33,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5326620c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:48:33, skipping insertion in model container [2021-10-13 06:48:33,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:48:33" (3/3) ... [2021-10-13 06:48:33,153 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2021-10-13 06:48:33,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:48:33,158 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 06:48:33,205 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:48:33,211 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:48:33,212 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 06:48:33,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 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) [2021-10-13 06:48:33,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 06:48:33,236 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:48:33,236 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:48:33,237 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:48:33,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:48:33,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1718080062, now seen corresponding path program 1 times [2021-10-13 06:48:33,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:48:33,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876113243] [2021-10-13 06:48:33,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:48:33,257 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:48:33,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:48:33,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:48:33,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:48:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:48:33,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 06:48:33,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:48:33,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:33,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:48:33,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:33,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:48:33,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876113243] [2021-10-13 06:48:33,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876113243] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:48:33,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:48:33,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 06:48:33,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168979122] [2021-10-13 06:48:33,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 06:48:33,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:48:33,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 06:48:33,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:48:33,651 INFO L87 Difference]: Start difference. First operand has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 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) [2021-10-13 06:48:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:48:33,684 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2021-10-13 06:48:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 06:48:33,685 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 [2021-10-13 06:48:33,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:48:33,696 INFO L225 Difference]: With dead ends: 280 [2021-10-13 06:48:33,696 INFO L226 Difference]: Without dead ends: 139 [2021-10-13 06:48:33,699 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:48:33,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-13 06:48:33,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-10-13 06:48:33,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 136 states have (on average 1.4779411764705883) internal successors, (201), 138 states have internal predecessors, (201), 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) [2021-10-13 06:48:33,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2021-10-13 06:48:33,767 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2021-10-13 06:48:33,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:48:33,767 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2021-10-13 06:48:33,768 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) [2021-10-13 06:48:33,768 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2021-10-13 06:48:33,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 06:48:33,769 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:48:33,770 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:48:33,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:48:33,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:48:33,974 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:48:33,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:48:33,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1665856481, now seen corresponding path program 1 times [2021-10-13 06:48:33,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:48:33,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929396589] [2021-10-13 06:48:33,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:48:33,976 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:48:33,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:48:33,978 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:48:33,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:48:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:48:34,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:48:34,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:48:34,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:34,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:48:34,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:34,337 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:48:34,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929396589] [2021-10-13 06:48:34,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929396589] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:48:34,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:48:34,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:48:34,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322162684] [2021-10-13 06:48:34,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:48:34,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:48:34,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:48:34,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:48:34,347 INFO L87 Difference]: Start difference. First operand 139 states and 201 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) [2021-10-13 06:48:34,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:48:34,381 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2021-10-13 06:48:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:48:34,382 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 [2021-10-13 06:48:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:48:34,384 INFO L225 Difference]: With dead ends: 139 [2021-10-13 06:48:34,385 INFO L226 Difference]: Without dead ends: 57 [2021-10-13 06:48:34,386 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:48:34,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-13 06:48:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-13 06:48:34,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 56 states have internal predecessors, (82), 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) [2021-10-13 06:48:34,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2021-10-13 06:48:34,402 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2021-10-13 06:48:34,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:48:34,402 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-10-13 06:48:34,403 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) [2021-10-13 06:48:34,403 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2021-10-13 06:48:34,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 06:48:34,405 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:48:34,409 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] [2021-10-13 06:48:34,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:48:34,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:48:34,622 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:48:34,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:48:34,623 INFO L82 PathProgramCache]: Analyzing trace with hash 35331171, now seen corresponding path program 1 times [2021-10-13 06:48:34,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:48:34,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251020061] [2021-10-13 06:48:34,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:48:34,624 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:48:34,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:48:34,625 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:48:34,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:48:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:48:34,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:48:34,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:48:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:34,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:48:35,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:35,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:48:35,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251020061] [2021-10-13 06:48:35,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251020061] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:48:35,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:48:35,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:48:35,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802168062] [2021-10-13 06:48:35,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:48:35,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:48:35,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:48:35,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:48:35,078 INFO L87 Difference]: Start difference. First operand 57 states and 82 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) [2021-10-13 06:48:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:48:35,116 INFO L93 Difference]: Finished difference Result 184 states and 271 transitions. [2021-10-13 06:48:35,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:48:35,117 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 [2021-10-13 06:48:35,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:48:35,120 INFO L225 Difference]: With dead ends: 184 [2021-10-13 06:48:35,120 INFO L226 Difference]: Without dead ends: 133 [2021-10-13 06:48:35,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:48:35,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-13 06:48:35,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 78. [2021-10-13 06:48:35,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4805194805194806) internal successors, (114), 77 states have internal predecessors, (114), 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) [2021-10-13 06:48:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2021-10-13 06:48:35,140 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2021-10-13 06:48:35,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:48:35,141 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2021-10-13 06:48:35,142 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) [2021-10-13 06:48:35,142 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2021-10-13 06:48:35,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 06:48:35,145 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:48:35,145 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] [2021-10-13 06:48:35,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:48:35,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:48:35,362 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:48:35,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:48:35,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1148352902, now seen corresponding path program 1 times [2021-10-13 06:48:35,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:48:35,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299212699] [2021-10-13 06:48:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:48:35,364 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:48:35,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:48:35,366 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:48:35,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:48:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:48:35,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:48:35,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:48:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:35,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:48:35,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:35,719 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:48:35,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299212699] [2021-10-13 06:48:35,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299212699] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:48:35,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:48:35,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 06:48:35,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047827703] [2021-10-13 06:48:35,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:48:35,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:48:35,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:48:35,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:48:35,721 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 06:48:35,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:48:35,788 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2021-10-13 06:48:35,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:48:35,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-13 06:48:35,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:48:35,790 INFO L225 Difference]: With dead ends: 173 [2021-10-13 06:48:35,790 INFO L226 Difference]: Without dead ends: 101 [2021-10-13 06:48:35,790 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:48:35,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-13 06:48:35,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2021-10-13 06:48:35,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 98 states have internal predecessors, (141), 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) [2021-10-13 06:48:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2021-10-13 06:48:35,809 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2021-10-13 06:48:35,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:48:35,810 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2021-10-13 06:48:35,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 06:48:35,810 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2021-10-13 06:48:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 06:48:35,812 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:48:35,812 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:48:35,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 06:48:36,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:48:36,025 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:48:36,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:48:36,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1938820856, now seen corresponding path program 1 times [2021-10-13 06:48:36,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:48:36,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123959634] [2021-10-13 06:48:36,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:48:36,027 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:48:36,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:48:36,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:48:36,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 06:48:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:48:36,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:48:36,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:48:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:36,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:48:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:36,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:48:36,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123959634] [2021-10-13 06:48:36,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123959634] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:48:36,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:48:36,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 06:48:36,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64387851] [2021-10-13 06:48:36,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:48:36,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:48:36,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:48:36,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:48:36,506 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:48:36,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:48:36,932 INFO L93 Difference]: Finished difference Result 1099 states and 1606 transitions. [2021-10-13 06:48:36,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 06:48:36,933 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 06:48:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:48:36,940 INFO L225 Difference]: With dead ends: 1099 [2021-10-13 06:48:36,940 INFO L226 Difference]: Without dead ends: 1006 [2021-10-13 06:48:36,941 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 134.3ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-13 06:48:36,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2021-10-13 06:48:36,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 251. [2021-10-13 06:48:36,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.412) internal successors, (353), 250 states have internal predecessors, (353), 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) [2021-10-13 06:48:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 353 transitions. [2021-10-13 06:48:36,983 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 353 transitions. Word has length 27 [2021-10-13 06:48:36,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:48:36,983 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 353 transitions. [2021-10-13 06:48:36,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:48:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 353 transitions. [2021-10-13 06:48:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 06:48:36,985 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:48:36,985 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:48:37,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 06:48:37,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:48:37,198 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:48:37,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:48:37,198 INFO L82 PathProgramCache]: Analyzing trace with hash 238557114, now seen corresponding path program 1 times [2021-10-13 06:48:37,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:48:37,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615146477] [2021-10-13 06:48:37,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:48:37,199 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:48:37,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:48:37,200 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:48:37,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 06:48:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:48:38,372 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 06:48:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:48:39,611 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 06:48:39,612 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 06:48:39,613 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:48:39,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:48:39,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:48:39,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 06:48:39,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:48:39,839 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:48:39,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:48:39 BoogieIcfgContainer [2021-10-13 06:48:39,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:48:39,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:48:39,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:48:39,967 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:48:39,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:48:33" (3/4) ... [2021-10-13 06:48:39,975 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 06:48:40,079 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:48:40,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:48:40,081 INFO L168 Benchmark]: Toolchain (without parser) took 10366.16 ms. Allocated memory was 65.0 MB in the beginning and 109.1 MB in the end (delta: 44.0 MB). Free memory was 43.5 MB in the beginning and 56.5 MB in the end (delta: -13.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:48:40,082 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 65.0 MB. Free memory is still 44.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:48:40,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 807.60 ms. Allocated memory is still 65.0 MB. Free memory was 43.3 MB in the beginning and 32.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:48:40,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.62 ms. Allocated memory is still 65.0 MB. Free memory was 32.5 MB in the beginning and 28.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:48:40,084 INFO L168 Benchmark]: Boogie Preprocessor took 89.27 ms. Allocated memory is still 65.0 MB. Free memory was 28.4 MB in the beginning and 44.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:48:40,084 INFO L168 Benchmark]: RCFGBuilder took 2432.90 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 44.7 MB in the beginning and 61.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:48:40,084 INFO L168 Benchmark]: TraceAbstraction took 6819.54 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 61.3 MB in the beginning and 68.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:48:40,085 INFO L168 Benchmark]: Witness Printer took 112.31 ms. Allocated memory is still 109.1 MB. Free memory was 68.0 MB in the beginning and 56.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:48:40,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 65.0 MB. Free memory is still 44.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 807.60 ms. Allocated memory is still 65.0 MB. Free memory was 43.3 MB in the beginning and 32.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.62 ms. Allocated memory is still 65.0 MB. Free memory was 32.5 MB in the beginning and 28.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.27 ms. Allocated memory is still 65.0 MB. Free memory was 28.4 MB in the beginning and 44.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2432.90 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 44.7 MB in the beginning and 61.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6819.54 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 61.3 MB in the beginning and 68.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Witness Printer took 112.31 ms. Allocated memory is still 109.1 MB. Free memory was 68.0 MB in the beginning and 56.5 MB in the end (delta: 11.4 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: 696]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int waterLevel = 1; [L417] int methaneLevelCritical = 0; [L519] int cleanupTimeShifts = 4; [L771] int pumpRunning = 0; [L772] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L599] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L703] int splverifierCounter ; [L704] int tmp ; [L705] int tmp___0 ; [L706] int tmp___1 ; [L707] int tmp___2 ; [L710] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L712] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L714] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L720] tmp = __VERIFIER_nondet_int() [L722] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L434] COND TRUE waterLevel < 2 [L435] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L730] tmp___0 = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L740] tmp___2 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___2)) [L746] tmp___1 = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L989] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L996] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L778] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L785] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L455] int retValue_acc ; [L458] retValue_acc = methaneLevelCritical [L459] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L487] int retValue_acc ; [L490] retValue_acc = waterLevel [L491] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L671] tmp___0 = getWaterLevel() [L673] COND TRUE tmp___0 == 2 [L903] int retValue_acc ; [L906] retValue_acc = pumpRunning [L907] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L675] tmp___1 = isPumpRunning() [L677] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L696] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 696]: 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: 696]: 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, 143 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6633.6ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 19.7ms, AutomataDifference: 666.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 578 SDtfs, 1486 SDslu, 1049 SDs, 0 SdLazy, 172 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 221.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 156.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 138.0ms AutomataMinimizationTime, 5 MinimizatonAttempts, 812 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 116.0ms SsaConstructionTime, 1617.0ms SatisfiabilityAnalysisTime, 989.4ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 4 NumberOfNonLiveVariables, 995 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2021-10-13 06:48:40,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ca606-1766-464c-8435-d7ba02b693ab/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...