./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e630fd4f7f92b97a7712eadcda02cdabe0d357899fc48fb3e7885213e7a8b80 ............................................................................................................................................ 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_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e630fd4f7f92b97a7712eadcda02cdabe0d357899fc48fb3e7885213e7a8b80 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:07:17,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:07:17,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:07:17,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:07:17,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:07:17,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:07:17,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:07:17,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:07:17,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:07:17,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:07:17,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:07:17,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:07:17,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:07:17,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:07:17,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:07:17,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:07:17,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:07:17,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:07:17,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:07:17,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:07:17,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:07:17,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:07:17,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:07:17,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:07:17,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:07:17,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:07:17,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:07:17,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:07:17,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:07:17,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:07:17,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:07:17,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:07:17,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:07:17,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:07:17,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:07:17,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:07:17,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:07:17,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:07:17,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:07:17,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:07:17,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:07:17,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 11:07:17,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:07:17,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:07:17,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:07:17,412 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:07:17,413 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:07:17,413 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:07:17,413 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 11:07:17,413 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:07:17,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:07:17,414 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 11:07:17,414 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 11:07:17,414 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:07:17,414 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 11:07:17,414 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 11:07:17,415 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 11:07:17,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:07:17,416 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:07:17,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 11:07:17,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:07:17,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:07:17,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:07:17,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:07:17,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:07:17,417 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:07:17,417 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:07:17,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:07:17,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:07:17,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:07:17,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:07:17,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:07:17,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:07:17,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:07:17,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:07:17,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:07:17,419 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 11:07:17,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 11:07:17,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:07:17,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:07:17,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:07:17,420 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_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e630fd4f7f92b97a7712eadcda02cdabe0d357899fc48fb3e7885213e7a8b80 [2021-10-24 11:07:17,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:07:17,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:07:17,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:07:17,763 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:07:17,764 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:07:17,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c [2021-10-24 11:07:17,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/data/d8b9c3a0a/84dcb7ba11114e2ebe716be5332aa097/FLAG7587168b4 [2021-10-24 11:07:18,441 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:07:18,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c [2021-10-24 11:07:18,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/data/d8b9c3a0a/84dcb7ba11114e2ebe716be5332aa097/FLAG7587168b4 [2021-10-24 11:07:18,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/data/d8b9c3a0a/84dcb7ba11114e2ebe716be5332aa097 [2021-10-24 11:07:18,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:07:18,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:07:18,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:07:18,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:07:18,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:07:18,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:07:18" (1/1) ... [2021-10-24 11:07:18,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c1be0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:18, skipping insertion in model container [2021-10-24 11:07:18,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:07:18" (1/1) ... [2021-10-24 11:07:18,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:07:18,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:07:19,154 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_1288e980-9fb7-4a58-bd61-6bd43a613bd7/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c[18234,18247] [2021-10-24 11:07:19,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:07:19,179 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 11:07:19,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2868a6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:19, skipping insertion in model container [2021-10-24 11:07:19,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:07:19,181 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 11:07:19,183 INFO L168 Benchmark]: Toolchain (without parser) took 446.23 ms. Allocated memory is still 111.1 MB. Free memory was 72.2 MB in the beginning and 82.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 11:07:19,185 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 111.1 MB. Free memory is still 89.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:07:19,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.38 ms. Allocated memory is still 111.1 MB. Free memory was 72.0 MB in the beginning and 82.5 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:07:19,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 111.1 MB. Free memory is still 89.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 427.38 ms. Allocated memory is still 111.1 MB. Free memory was 72.0 MB in the beginning and 82.5 MB in the end (delta: -10.6 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: 573]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:07:21,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:07:21,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:07:21,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:07:21,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:07:21,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:07:21,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:07:21,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:07:21,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:07:21,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:07:21,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:07:21,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:07:21,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:07:21,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:07:21,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:07:21,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:07:21,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:07:21,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:07:21,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:07:21,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:07:21,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:07:21,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:07:21,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:07:21,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:07:21,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:07:21,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:07:21,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:07:21,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:07:21,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:07:21,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:07:21,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:07:21,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:07:21,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:07:21,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:07:21,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:07:21,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:07:21,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:07:21,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:07:21,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:07:21,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:07:21,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:07:21,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 11:07:21,583 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:07:21,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:07:21,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:07:21,585 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:07:21,586 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:07:21,586 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:07:21,586 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:07:21,586 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:07:21,586 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:07:21,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:07:21,589 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:07:21,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:07:21,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:07:21,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:07:21,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:07:21,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:07:21,590 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:07:21,590 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 11:07:21,590 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 11:07:21,591 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:07:21,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:07:21,591 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:07:21,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:07:21,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:07:21,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 11:07:21,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:07:21,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:07:21,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:07:21,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:07:21,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:07:21,593 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 11:07:21,593 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 11:07:21,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:07:21,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:07:21,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:07:21,594 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_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e630fd4f7f92b97a7712eadcda02cdabe0d357899fc48fb3e7885213e7a8b80 [2021-10-24 11:07:21,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:07:21,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:07:21,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:07:21,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:07:22,000 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:07:22,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c [2021-10-24 11:07:22,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/data/0df43dc81/aba602e6e6b34c6aa40b4d09596ba354/FLAGa4804bcca [2021-10-24 11:07:22,770 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:07:22,771 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c [2021-10-24 11:07:22,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/data/0df43dc81/aba602e6e6b34c6aa40b4d09596ba354/FLAGa4804bcca [2021-10-24 11:07:23,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/data/0df43dc81/aba602e6e6b34c6aa40b4d09596ba354 [2021-10-24 11:07:23,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:07:23,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:07:23,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:07:23,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:07:23,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:07:23,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1435e2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23, skipping insertion in model container [2021-10-24 11:07:23,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:07:23,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:07:23,402 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_1288e980-9fb7-4a58-bd61-6bd43a613bd7/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c[18234,18247] [2021-10-24 11:07:23,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:07:23,419 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 11:07:23,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:07:23,552 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_1288e980-9fb7-4a58-bd61-6bd43a613bd7/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c[18234,18247] [2021-10-24 11:07:23,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:07:23,565 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:07:23,660 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_1288e980-9fb7-4a58-bd61-6bd43a613bd7/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c[18234,18247] [2021-10-24 11:07:23,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:07:23,689 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:07:23,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23 WrapperNode [2021-10-24 11:07:23,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:07:23,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:07:23,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:07:23,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:07:23,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:07:23,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:07:23,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:07:23,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:07:23,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:07:23,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:07:23,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:07:23,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:07:23,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (1/1) ... [2021-10-24 11:07:23,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:07:23,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:07:23,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:07:23,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:07:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:07:23,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 11:07:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:07:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:07:26,375 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:07:26,375 INFO L299 CfgBuilder]: Removed 128 assume(true) statements. [2021-10-24 11:07:26,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:07:26 BoogieIcfgContainer [2021-10-24 11:07:26,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:07:26,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:07:26,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:07:26,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:07:26,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:07:23" (1/3) ... [2021-10-24 11:07:26,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72247952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:07:26, skipping insertion in model container [2021-10-24 11:07:26,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:07:23" (2/3) ... [2021-10-24 11:07:26,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72247952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:07:26, skipping insertion in model container [2021-10-24 11:07:26,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:07:26" (3/3) ... [2021-10-24 11:07:26,386 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product41.cil.c [2021-10-24 11:07:26,391 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:07:26,392 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 11:07:26,442 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:07:26,448 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 11:07:26,448 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 11:07:26,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 92 states have (on average 1.5326086956521738) internal successors, (141), 95 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) [2021-10-24 11:07:26,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 11:07:26,475 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:07:26,476 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:07:26,476 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:07:26,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:07:26,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1151374926, now seen corresponding path program 1 times [2021-10-24 11:07:26,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:07:26,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690962200] [2021-10-24 11:07:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:26,513 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:07:26,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:07:26,514 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:07:26,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 11:07:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:26,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 11:07:26,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:26,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:26,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:26,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:26,955 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:07:26,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690962200] [2021-10-24 11:07:26,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690962200] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:07:26,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:07:26,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 11:07:26,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775871565] [2021-10-24 11:07:26,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 11:07:26,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:07:26,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 11:07:26,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:07:26,985 INFO L87 Difference]: Start difference. First operand has 96 states, 92 states have (on average 1.5326086956521738) internal successors, (141), 95 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) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:27,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:07:27,036 INFO L93 Difference]: Finished difference Result 185 states and 274 transitions. [2021-10-24 11:07:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 11:07:27,037 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 11:07:27,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:07:27,050 INFO L225 Difference]: With dead ends: 185 [2021-10-24 11:07:27,050 INFO L226 Difference]: Without dead ends: 92 [2021-10-24 11:07:27,053 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:07:27,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-24 11:07:27,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-10-24 11:07:27,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 89 states have (on average 1.449438202247191) internal successors, (129), 91 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:27,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 129 transitions. [2021-10-24 11:07:27,111 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 129 transitions. Word has length 19 [2021-10-24 11:07:27,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:07:27,111 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 129 transitions. [2021-10-24 11:07:27,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:27,112 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 129 transitions. [2021-10-24 11:07:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-24 11:07:27,114 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:07:27,114 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] [2021-10-24 11:07:27,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 11:07:27,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:07:27,327 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:07:27,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:07:27,328 INFO L82 PathProgramCache]: Analyzing trace with hash 654644627, now seen corresponding path program 1 times [2021-10-24 11:07:27,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:07:27,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792315127] [2021-10-24 11:07:27,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:27,330 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:07:27,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:07:27,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:07:27,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 11:07:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:27,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:07:27,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:27,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:27,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:27,679 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:07:27,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792315127] [2021-10-24 11:07:27,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792315127] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:07:27,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:07:27,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 11:07:27,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758802118] [2021-10-24 11:07:27,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:07:27,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:07:27,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:07:27,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:07:27,688 INFO L87 Difference]: Start difference. First operand 92 states and 129 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:27,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:07:27,715 INFO L93 Difference]: Finished difference Result 92 states and 129 transitions. [2021-10-24 11:07:27,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:07:27,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-24 11:07:27,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:07:27,718 INFO L225 Difference]: With dead ends: 92 [2021-10-24 11:07:27,718 INFO L226 Difference]: Without dead ends: 41 [2021-10-24 11:07:27,719 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:07:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-24 11:07:27,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-24 11:07:27,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.425) internal successors, (57), 40 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:27,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2021-10-24 11:07:27,735 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 20 [2021-10-24 11:07:27,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:07:27,736 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2021-10-24 11:07:27,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:27,737 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2021-10-24 11:07:27,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 11:07:27,738 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:07:27,744 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:07:27,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-24 11:07:27,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:07:27,962 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:07:27,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:07:27,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1356458264, now seen corresponding path program 1 times [2021-10-24 11:07:27,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:07:27,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25156296] [2021-10-24 11:07:27,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:27,964 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:07:27,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:07:27,965 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:07:27,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 11:07:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:28,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:07:28,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:28,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:28,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:28,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:28,417 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:07:28,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25156296] [2021-10-24 11:07:28,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25156296] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:07:28,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:07:28,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 11:07:28,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978816342] [2021-10-24 11:07:28,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:07:28,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:07:28,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:07:28,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:07:28,421 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:28,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:07:28,428 INFO L93 Difference]: Finished difference Result 75 states and 107 transitions. [2021-10-24 11:07:28,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:07:28,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-24 11:07:28,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:07:28,430 INFO L225 Difference]: With dead ends: 75 [2021-10-24 11:07:28,430 INFO L226 Difference]: Without dead ends: 41 [2021-10-24 11:07:28,430 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:07:28,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-24 11:07:28,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-24 11:07:28,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.4) internal successors, (56), 40 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:28,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2021-10-24 11:07:28,436 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 26 [2021-10-24 11:07:28,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:07:28,436 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2021-10-24 11:07:28,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:28,437 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2021-10-24 11:07:28,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 11:07:28,438 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:07:28,438 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] [2021-10-24 11:07:28,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 11:07:28,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:07:28,654 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:07:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:07:28,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1948968251, now seen corresponding path program 1 times [2021-10-24 11:07:28,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:07:28,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127856931] [2021-10-24 11:07:28,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:28,656 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:07:28,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:07:28,658 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:07:28,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 11:07:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:28,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:07:28,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:28,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:29,037 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:07:29,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127856931] [2021-10-24 11:07:29,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127856931] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:07:29,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:07:29,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 11:07:29,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725914324] [2021-10-24 11:07:29,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 11:07:29,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:07:29,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 11:07:29,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:07:29,040 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:29,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:07:29,095 INFO L93 Difference]: Finished difference Result 99 states and 139 transitions. [2021-10-24 11:07:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:07:29,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 [2021-10-24 11:07:29,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:07:29,097 INFO L225 Difference]: With dead ends: 99 [2021-10-24 11:07:29,097 INFO L226 Difference]: Without dead ends: 65 [2021-10-24 11:07:29,098 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:07:29,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-24 11:07:29,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2021-10-24 11:07:29,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.403225806451613) internal successors, (87), 62 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:29,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 87 transitions. [2021-10-24 11:07:29,106 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 87 transitions. Word has length 27 [2021-10-24 11:07:29,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:07:29,106 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 87 transitions. [2021-10-24 11:07:29,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2021-10-24 11:07:29,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 11:07:29,108 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:07:29,108 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:07:29,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 11:07:29,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:07:29,324 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:07:29,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:07:29,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1806698503, now seen corresponding path program 1 times [2021-10-24 11:07:29,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:07:29,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314562937] [2021-10-24 11:07:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:29,326 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:07:29,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:07:29,327 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:07:29,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 11:07:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:29,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 11:07:29,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:29,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:29,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:29,776 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:07:29,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314562937] [2021-10-24 11:07:29,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314562937] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:07:29,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:07:29,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 11:07:29,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263702668] [2021-10-24 11:07:29,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 11:07:29,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:07:29,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 11:07:29,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 11:07:29,784 INFO L87 Difference]: Start difference. First operand 63 states and 87 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:29,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:07:29,947 INFO L93 Difference]: Finished difference Result 216 states and 304 transitions. [2021-10-24 11:07:29,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 11:07:29,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 33 [2021-10-24 11:07:29,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:07:29,949 INFO L225 Difference]: With dead ends: 216 [2021-10-24 11:07:29,949 INFO L226 Difference]: Without dead ends: 160 [2021-10-24 11:07:29,950 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 52.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 11:07:29,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-24 11:07:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 62. [2021-10-24 11:07:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 61 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 84 transitions. [2021-10-24 11:07:29,960 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 84 transitions. Word has length 33 [2021-10-24 11:07:29,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:07:29,961 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 84 transitions. [2021-10-24 11:07:29,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:29,961 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 84 transitions. [2021-10-24 11:07:29,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 11:07:29,962 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:07:29,962 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:07:29,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 11:07:30,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:07:30,181 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:07:30,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:07:30,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1255671478, now seen corresponding path program 1 times [2021-10-24 11:07:30,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:07:30,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152823557] [2021-10-24 11:07:30,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:30,183 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:07:30,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:07:30,184 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:07:30,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 11:07:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:30,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 11:07:30,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:30,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:30,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:30,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:30,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:07:30,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152823557] [2021-10-24 11:07:30,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152823557] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:07:30,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:07:30,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 11:07:30,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978549073] [2021-10-24 11:07:30,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 11:07:30,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:07:30,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 11:07:30,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 11:07:30,623 INFO L87 Difference]: Start difference. First operand 62 states and 84 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:30,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:07:30,671 INFO L93 Difference]: Finished difference Result 161 states and 220 transitions. [2021-10-24 11:07:30,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 11:07:30,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 36 [2021-10-24 11:07:30,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:07:30,673 INFO L225 Difference]: With dead ends: 161 [2021-10-24 11:07:30,673 INFO L226 Difference]: Without dead ends: 106 [2021-10-24 11:07:30,674 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 11:07:30,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-24 11:07:30,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 65. [2021-10-24 11:07:30,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.359375) internal successors, (87), 64 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:30,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 87 transitions. [2021-10-24 11:07:30,684 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 87 transitions. Word has length 36 [2021-10-24 11:07:30,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:07:30,685 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 87 transitions. [2021-10-24 11:07:30,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:30,685 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 87 transitions. [2021-10-24 11:07:30,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 11:07:30,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:07:30,686 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:07:30,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 11:07:30,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:07:30,921 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:07:30,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:07:30,921 INFO L82 PathProgramCache]: Analyzing trace with hash 244554228, now seen corresponding path program 1 times [2021-10-24 11:07:30,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:07:30,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158287234] [2021-10-24 11:07:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:30,922 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:07:30,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:07:30,926 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:07:30,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 11:07:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:31,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 11:07:31,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:31,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:31,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:31,360 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:07:31,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158287234] [2021-10-24 11:07:31,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158287234] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:07:31,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:07:31,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 11:07:31,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718568603] [2021-10-24 11:07:31,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 11:07:31,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:07:31,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 11:07:31,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 11:07:31,362 INFO L87 Difference]: Start difference. First operand 65 states and 87 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:31,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:07:31,423 INFO L93 Difference]: Finished difference Result 170 states and 229 transitions. [2021-10-24 11:07:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 11:07:31,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 36 [2021-10-24 11:07:31,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:07:31,424 INFO L225 Difference]: With dead ends: 170 [2021-10-24 11:07:31,425 INFO L226 Difference]: Without dead ends: 112 [2021-10-24 11:07:31,426 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 28.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 11:07:31,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-24 11:07:31,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 67. [2021-10-24 11:07:31,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 66 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:31,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 89 transitions. [2021-10-24 11:07:31,446 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 89 transitions. Word has length 36 [2021-10-24 11:07:31,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:07:31,448 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 89 transitions. [2021-10-24 11:07:31,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:31,449 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 89 transitions. [2021-10-24 11:07:31,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 11:07:31,455 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:07:31,455 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:07:31,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-24 11:07:31,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:07:31,665 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:07:31,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:07:31,666 INFO L82 PathProgramCache]: Analyzing trace with hash -776514126, now seen corresponding path program 1 times [2021-10-24 11:07:31,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:07:31,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111137779] [2021-10-24 11:07:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:31,666 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:07:31,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:07:31,668 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:07:31,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 11:07:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:31,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:07:31,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:32,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:32,150 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:07:32,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111137779] [2021-10-24 11:07:32,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111137779] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:07:32,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:07:32,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 11:07:32,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147051771] [2021-10-24 11:07:32,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:07:32,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:07:32,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:07:32,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:07:32,153 INFO L87 Difference]: Start difference. First operand 67 states and 89 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:32,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:07:32,207 INFO L93 Difference]: Finished difference Result 204 states and 275 transitions. [2021-10-24 11:07:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 11:07:32,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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 36 [2021-10-24 11:07:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:07:32,208 INFO L225 Difference]: With dead ends: 204 [2021-10-24 11:07:32,209 INFO L226 Difference]: Without dead ends: 144 [2021-10-24 11:07:32,209 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:07:32,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-24 11:07:32,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 115. [2021-10-24 11:07:32,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.3508771929824561) internal successors, (154), 114 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:32,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2021-10-24 11:07:32,228 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 36 [2021-10-24 11:07:32,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:07:32,229 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2021-10-24 11:07:32,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:32,236 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2021-10-24 11:07:32,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-24 11:07:32,237 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:07:32,237 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:07:32,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-24 11:07:32,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:07:32,455 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:07:32,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:07:32,456 INFO L82 PathProgramCache]: Analyzing trace with hash 2043974386, now seen corresponding path program 1 times [2021-10-24 11:07:32,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:07:32,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131860878] [2021-10-24 11:07:32,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:32,457 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:07:32,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:07:32,458 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:07:32,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 11:07:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:32,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-24 11:07:32,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:32,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:32,991 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:07:32,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131860878] [2021-10-24 11:07:32,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131860878] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:07:32,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:07:32,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 11:07:32,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898432968] [2021-10-24 11:07:32,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 11:07:32,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:07:32,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 11:07:32,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-24 11:07:32,993 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:34,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:07:34,622 INFO L93 Difference]: Finished difference Result 539 states and 732 transitions. [2021-10-24 11:07:34,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-24 11:07:34,623 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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 37 [2021-10-24 11:07:34,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:07:34,627 INFO L225 Difference]: With dead ends: 539 [2021-10-24 11:07:34,627 INFO L226 Difference]: Without dead ends: 431 [2021-10-24 11:07:34,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 74.6ms TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-10-24 11:07:34,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-10-24 11:07:34,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 214. [2021-10-24 11:07:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.3286384976525822) internal successors, (283), 213 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:34,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 283 transitions. [2021-10-24 11:07:34,667 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 283 transitions. Word has length 37 [2021-10-24 11:07:34,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:07:34,667 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 283 transitions. [2021-10-24 11:07:34,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:34,668 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 283 transitions. [2021-10-24 11:07:34,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-24 11:07:34,669 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:07:34,670 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:07:34,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 11:07:34,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:07:34,885 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:07:34,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:07:34,886 INFO L82 PathProgramCache]: Analyzing trace with hash 146896004, now seen corresponding path program 1 times [2021-10-24 11:07:34,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:07:34,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765454666] [2021-10-24 11:07:34,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:34,886 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:07:34,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:07:34,887 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:07:34,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-24 11:07:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:35,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 11:07:35,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:35,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:35,556 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:35,556 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:07:35,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765454666] [2021-10-24 11:07:35,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765454666] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:07:35,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1669816332] [2021-10-24 11:07:35,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:35,557 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 11:07:35,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 11:07:35,562 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 11:07:35,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-24 11:07:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:35,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-24 11:07:35,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:36,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:36,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:36,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:36,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1669816332] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:07:36,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792375058] [2021-10-24 11:07:36,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:07:36,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:07:36,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:07:36,258 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:07:36,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-24 11:07:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:07:36,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 11:07:36,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:07:36,725 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:36,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:07:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:07:36,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792375058] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:07:36,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 11:07:36,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-10-24 11:07:36,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260775184] [2021-10-24 11:07:36,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 11:07:36,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:07:36,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 11:07:36,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 11:07:36,871 INFO L87 Difference]: Start difference. First operand 214 states and 283 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:43,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:07:43,055 INFO L93 Difference]: Finished difference Result 367 states and 493 transitions. [2021-10-24 11:07:43,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 11:07:43,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-24 11:07:43,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:07:43,056 INFO L225 Difference]: With dead ends: 367 [2021-10-24 11:07:43,056 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 11:07:43,057 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 64.7ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-24 11:07:43,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 11:07:43,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 11:07:43,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 11:07:43,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2021-10-24 11:07:43,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:07:43,058 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 11:07:43,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:07:43,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 11:07:43,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 11:07:43,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:07:43,062 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:07:43,062 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:07:43,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-24 11:07:43,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-24 11:07:43,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-24 11:07:43,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:07:43,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 11:07:43,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:43,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:44,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:07:46,183 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 366) no Hoare annotation was computed. [2021-10-24 11:07:46,183 INFO L857 garLoopResultBuilder]: For program point L349-1(lines 349 366) no Hoare annotation was computed. [2021-10-24 11:07:46,183 INFO L857 garLoopResultBuilder]: For program point L349-2(lines 349 366) no Hoare annotation was computed. [2021-10-24 11:07:46,183 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 950) no Hoare annotation was computed. [2021-10-24 11:07:46,183 INFO L853 garLoopResultBuilder]: At program point L151(lines 146 154) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= ~waterLevel~0 (_ bv2 32)) (= ~systemActive~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 11:07:46,183 INFO L853 garLoopResultBuilder]: At program point L151-1(lines 146 154) the Hoare annotation is: false [2021-10-24 11:07:46,184 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2021-10-24 11:07:46,184 INFO L853 garLoopResultBuilder]: At program point L151-2(lines 146 154) the Hoare annotation is: false [2021-10-24 11:07:46,184 INFO L857 garLoopResultBuilder]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2021-10-24 11:07:46,184 INFO L857 garLoopResultBuilder]: For program point L85-4(lines 85 91) no Hoare annotation was computed. [2021-10-24 11:07:46,184 INFO L860 garLoopResultBuilder]: At program point L300(lines 281 303) the Hoare annotation is: true [2021-10-24 11:07:46,184 INFO L853 garLoopResultBuilder]: At program point L69(lines 317 323) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse2 (= ~switchedOnBeforeTS~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) (and .cse0 (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2 .cse3))) [2021-10-24 11:07:46,184 INFO L853 garLoopResultBuilder]: At program point L69-1(lines 317 323) the Hoare annotation is: false [2021-10-24 11:07:46,184 INFO L853 garLoopResultBuilder]: At program point L69-2(lines 317 323) the Hoare annotation is: false [2021-10-24 11:07:46,185 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 11:07:46,185 INFO L853 garLoopResultBuilder]: At program point L317(lines 313 335) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 (= ~switchedOnBeforeTS~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) (and .cse0 .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2))) [2021-10-24 11:07:46,185 INFO L853 garLoopResultBuilder]: At program point L317-1(lines 313 335) the Hoare annotation is: false [2021-10-24 11:07:46,185 INFO L853 garLoopResultBuilder]: At program point L317-2(lines 313 335) the Hoare annotation is: false [2021-10-24 11:07:46,185 INFO L857 garLoopResultBuilder]: For program point L218(lines 218 222) no Hoare annotation was computed. [2021-10-24 11:07:46,185 INFO L857 garLoopResultBuilder]: For program point L218-1(lines 218 222) no Hoare annotation was computed. [2021-10-24 11:07:46,185 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 506) no Hoare annotation was computed. [2021-10-24 11:07:46,186 INFO L853 garLoopResultBuilder]: At program point L500-1(lines 500 506) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= (_ bv1 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and .cse0 .cse4 .cse2 (= ~switchedOnBeforeTS~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) (and .cse0 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3))) [2021-10-24 11:07:46,186 INFO L857 garLoopResultBuilder]: For program point L138(lines 138 142) no Hoare annotation was computed. [2021-10-24 11:07:46,186 INFO L857 garLoopResultBuilder]: For program point L386(lines 386 392) no Hoare annotation was computed. [2021-10-24 11:07:46,186 INFO L857 garLoopResultBuilder]: For program point L353(lines 353 361) no Hoare annotation was computed. [2021-10-24 11:07:46,187 INFO L857 garLoopResultBuilder]: For program point L353-1(lines 353 361) no Hoare annotation was computed. [2021-10-24 11:07:46,187 INFO L857 garLoopResultBuilder]: For program point L386-2(lines 386 392) no Hoare annotation was computed. [2021-10-24 11:07:46,187 INFO L857 garLoopResultBuilder]: For program point L353-2(lines 353 361) no Hoare annotation was computed. [2021-10-24 11:07:46,187 INFO L857 garLoopResultBuilder]: For program point L386-4(lines 386 392) no Hoare annotation was computed. [2021-10-24 11:07:46,187 INFO L857 garLoopResultBuilder]: For program point L469(lines 469 473) no Hoare annotation was computed. [2021-10-24 11:07:46,187 INFO L857 garLoopResultBuilder]: For program point L469-2(lines 469 473) no Hoare annotation was computed. [2021-10-24 11:07:46,188 INFO L857 garLoopResultBuilder]: For program point L469-3(lines 469 473) no Hoare annotation was computed. [2021-10-24 11:07:46,188 INFO L857 garLoopResultBuilder]: For program point L469-5(lines 469 473) no Hoare annotation was computed. [2021-10-24 11:07:46,188 INFO L857 garLoopResultBuilder]: For program point L469-6(lines 469 473) no Hoare annotation was computed. [2021-10-24 11:07:46,188 INFO L857 garLoopResultBuilder]: For program point L469-8(lines 469 473) no Hoare annotation was computed. [2021-10-24 11:07:46,188 INFO L853 garLoopResultBuilder]: At program point L420(lines 415 423) the Hoare annotation is: (let ((.cse4 (= (_ bv1 32) ~pumpRunning~0)) (.cse5 (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3) (and .cse0 .cse4 .cse2 (= ~switchedOnBeforeTS~0 (_ bv1 32)) .cse5) (and .cse0 .cse4 .cse6 .cse2 .cse5) (and .cse0 .cse6 .cse1 .cse2 .cse3))) [2021-10-24 11:07:46,189 INFO L853 garLoopResultBuilder]: At program point L420-1(lines 415 423) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse1 (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 (= ~switchedOnBeforeTS~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)))) [2021-10-24 11:07:46,189 INFO L853 garLoopResultBuilder]: At program point L420-2(lines 415 423) the Hoare annotation is: false [2021-10-24 11:07:46,189 INFO L853 garLoopResultBuilder]: At program point L420-3(lines 415 423) the Hoare annotation is: false [2021-10-24 11:07:46,189 INFO L853 garLoopResultBuilder]: At program point L420-4(lines 415 423) the Hoare annotation is: false [2021-10-24 11:07:46,189 INFO L853 garLoopResultBuilder]: At program point L420-5(lines 415 423) the Hoare annotation is: false [2021-10-24 11:07:46,190 INFO L853 garLoopResultBuilder]: At program point L536(lines 489 537) the Hoare annotation is: false [2021-10-24 11:07:46,190 INFO L857 garLoopResultBuilder]: For program point L520(lines 520 531) no Hoare annotation was computed. [2021-10-24 11:07:46,190 INFO L853 garLoopResultBuilder]: At program point L933(lines 1 953) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 11:07:46,190 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 11:07:46,190 INFO L857 garLoopResultBuilder]: For program point L950(line 950) no Hoare annotation was computed. [2021-10-24 11:07:46,190 INFO L857 garLoopResultBuilder]: For program point L950-1(line 950) no Hoare annotation was computed. [2021-10-24 11:07:46,190 INFO L857 garLoopResultBuilder]: For program point L950-2(line 950) no Hoare annotation was computed. [2021-10-24 11:07:46,191 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 197) no Hoare annotation was computed. [2021-10-24 11:07:46,191 INFO L857 garLoopResultBuilder]: For program point L191-1(lines 191 197) no Hoare annotation was computed. [2021-10-24 11:07:46,191 INFO L857 garLoopResultBuilder]: For program point L191-2(lines 191 197) no Hoare annotation was computed. [2021-10-24 11:07:46,191 INFO L853 garLoopResultBuilder]: At program point L59(lines 54 61) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 11:07:46,191 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 950) no Hoare annotation was computed. [2021-10-24 11:07:46,192 INFO L853 garLoopResultBuilder]: At program point L324(lines 324 330) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= (_ bv1 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and .cse0 .cse4 .cse2 (= ~switchedOnBeforeTS~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) (and .cse0 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3))) [2021-10-24 11:07:46,192 INFO L857 garLoopResultBuilder]: For program point L291(lines 291 298) no Hoare annotation was computed. [2021-10-24 11:07:46,192 INFO L853 garLoopResultBuilder]: At program point L324-1(lines 324 330) the Hoare annotation is: false [2021-10-24 11:07:46,192 INFO L853 garLoopResultBuilder]: At program point L324-2(lines 324 330) the Hoare annotation is: false [2021-10-24 11:07:46,192 INFO L860 garLoopResultBuilder]: At program point L291-1(lines 291 298) the Hoare annotation is: true [2021-10-24 11:07:46,192 INFO L857 garLoopResultBuilder]: For program point L126(lines 126 130) no Hoare annotation was computed. [2021-10-24 11:07:46,193 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-24 11:07:46,193 INFO L857 garLoopResultBuilder]: For program point L491(lines 490 535) no Hoare annotation was computed. [2021-10-24 11:07:46,193 INFO L853 garLoopResultBuilder]: At program point L475(lines 460 478) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2) (and .cse0 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) .cse2))) [2021-10-24 11:07:46,193 INFO L853 garLoopResultBuilder]: At program point L475-1(lines 460 478) the Hoare annotation is: false [2021-10-24 11:07:46,193 INFO L853 garLoopResultBuilder]: At program point L475-2(lines 460 478) the Hoare annotation is: false [2021-10-24 11:07:46,193 INFO L857 garLoopResultBuilder]: For program point L492(lines 492 496) no Hoare annotation was computed. [2021-10-24 11:07:46,194 INFO L857 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2021-10-24 11:07:46,194 INFO L853 garLoopResultBuilder]: At program point L80-1(lines 1 953) the Hoare annotation is: (let ((.cse1 (= (_ bv1 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0)) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= ~switchedOnBeforeTS~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) (and .cse0 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3) (and .cse0 .cse1 .cse4 .cse5 .cse2 .cse6) (and .cse0 .cse4 .cse5 .cse2 .cse6 .cse3))) [2021-10-24 11:07:46,194 INFO L857 garLoopResultBuilder]: For program point L526(lines 526 530) no Hoare annotation was computed. [2021-10-24 11:07:46,194 INFO L857 garLoopResultBuilder]: For program point L80-2(lines 80 97) no Hoare annotation was computed. [2021-10-24 11:07:46,194 INFO L853 garLoopResultBuilder]: At program point L80-3(lines 1 953) the Hoare annotation is: false [2021-10-24 11:07:46,194 INFO L857 garLoopResultBuilder]: For program point L526-2(lines 520 531) no Hoare annotation was computed. [2021-10-24 11:07:46,195 INFO L857 garLoopResultBuilder]: For program point L80-4(lines 80 97) no Hoare annotation was computed. [2021-10-24 11:07:46,195 INFO L853 garLoopResultBuilder]: At program point L80-5(lines 1 953) the Hoare annotation is: false [2021-10-24 11:07:46,195 INFO L853 garLoopResultBuilder]: At program point L196(lines 187 200) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2) (and .cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2))) [2021-10-24 11:07:46,195 INFO L853 garLoopResultBuilder]: At program point L196-1(lines 187 200) the Hoare annotation is: false [2021-10-24 11:07:46,195 INFO L853 garLoopResultBuilder]: At program point L196-2(lines 187 200) the Hoare annotation is: false [2021-10-24 11:07:46,195 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 516) no Hoare annotation was computed. [2021-10-24 11:07:46,196 INFO L853 garLoopResultBuilder]: At program point L510-1(lines 510 516) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= (_ bv1 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and .cse0 .cse4 .cse2 (= ~switchedOnBeforeTS~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) (and .cse0 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3))) [2021-10-24 11:07:46,196 INFO L853 garLoopResultBuilder]: At program point L411(lines 404 414) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= ~waterLevel~0 (_ bv2 32)) (= ~systemActive~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 11:07:46,196 INFO L853 garLoopResultBuilder]: At program point L411-1(lines 404 414) the Hoare annotation is: false [2021-10-24 11:07:46,196 INFO L853 garLoopResultBuilder]: At program point L411-2(lines 404 414) the Hoare annotation is: false [2021-10-24 11:07:46,196 INFO L857 garLoopResultBuilder]: For program point L114(lines 114 118) no Hoare annotation was computed. [2021-10-24 11:07:46,197 INFO L857 garLoopResultBuilder]: For program point L114-3(lines 114 118) no Hoare annotation was computed. [2021-10-24 11:07:46,197 INFO L857 garLoopResultBuilder]: For program point L114-6(lines 114 118) no Hoare annotation was computed. [2021-10-24 11:07:46,197 INFO L853 garLoopResultBuilder]: At program point L263(lines 259 265) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 11:07:46,197 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-24 11:07:46,197 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 950) no Hoare annotation was computed. [2021-10-24 11:07:46,197 INFO L853 garLoopResultBuilder]: At program point L214-2(lines 214 228) the Hoare annotation is: false [2021-10-24 11:07:46,198 INFO L853 garLoopResultBuilder]: At program point L941(lines 936 944) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 11:07:46,198 INFO L857 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2021-10-24 11:07:46,198 INFO L853 garLoopResultBuilder]: At program point L183(lines 178 186) the Hoare annotation is: (let ((.cse1 (= (_ bv1 32) ~pumpRunning~0)) (.cse2 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 (= ~switchedOnBeforeTS~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) (and .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse3 (= ~waterLevel~0 (_ bv1 32)) .cse5))) [2021-10-24 11:07:46,198 INFO L853 garLoopResultBuilder]: At program point L183-1(lines 178 186) the Hoare annotation is: false [2021-10-24 11:07:46,198 INFO L853 garLoopResultBuilder]: At program point L183-2(lines 178 186) the Hoare annotation is: false [2021-10-24 11:07:46,198 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2021-10-24 11:07:46,199 INFO L857 garLoopResultBuilder]: For program point L84-2(lines 84 94) no Hoare annotation was computed. [2021-10-24 11:07:46,199 INFO L857 garLoopResultBuilder]: For program point L84-4(lines 84 94) no Hoare annotation was computed. [2021-10-24 11:07:46,203 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:07:46,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:07:46 BoogieIcfgContainer [2021-10-24 11:07:46,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:07:46,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:07:46,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:07:46,250 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:07:46,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:07:26" (3/4) ... [2021-10-24 11:07:46,254 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 11:07:46,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-24 11:07:46,284 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-24 11:07:46,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-24 11:07:46,286 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-24 11:07:46,287 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-24 11:07:46,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 11:07:46,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 11:07:46,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && 2bv32 == tmp) && systemActive == 1bv32) && 2bv32 == \result)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 2bv32 == tmp) && systemActive == 1bv32) && 2bv32 == \result) && 0bv32 == pumpRunning) [2021-10-24 11:07:46,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 11:07:46,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 11:07:46,329 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) && 1bv32 == \result)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 11:07:46,330 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 11:07:46,330 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 11:07:46,330 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 11:07:46,332 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) && 2bv32 == \result) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 2bv32 == \result) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 11:07:46,333 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 11:07:46,334 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result) [2021-10-24 11:07:46,334 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && !(tmp == 0bv32)) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 11:07:46,389 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 11:07:46,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:07:46,391 INFO L168 Benchmark]: Toolchain (without parser) took 23364.61 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 48.5 MB in the beginning and 62.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-10-24 11:07:46,391 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 67.1 MB. Free memory is still 48.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:07:46,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.80 ms. Allocated memory is still 67.1 MB. Free memory was 48.4 MB in the beginning and 42.3 MB in the end (delta: 6.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:07:46,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.85 ms. Allocated memory is still 67.1 MB. Free memory was 42.1 MB in the beginning and 38.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:07:46,393 INFO L168 Benchmark]: Boogie Preprocessor took 83.53 ms. Allocated memory is still 67.1 MB. Free memory was 38.9 MB in the beginning and 36.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:07:46,393 INFO L168 Benchmark]: RCFGBuilder took 2487.68 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 36.4 MB in the beginning and 57.5 MB in the end (delta: -21.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:07:46,394 INFO L168 Benchmark]: TraceAbstraction took 19851.10 ms. Allocated memory is still 92.3 MB. Free memory was 57.0 MB in the beginning and 24.5 MB in the end (delta: 32.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:07:46,394 INFO L168 Benchmark]: Witness Printer took 151.28 ms. Allocated memory is still 92.3 MB. Free memory was 69.7 MB in the beginning and 62.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 11:07:46,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 67.1 MB. Free memory is still 48.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 662.80 ms. Allocated memory is still 67.1 MB. Free memory was 48.4 MB in the beginning and 42.3 MB in the end (delta: 6.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.85 ms. Allocated memory is still 67.1 MB. Free memory was 42.1 MB in the beginning and 38.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.53 ms. Allocated memory is still 67.1 MB. Free memory was 38.9 MB in the beginning and 36.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2487.68 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 36.4 MB in the beginning and 57.5 MB in the end (delta: -21.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19851.10 ms. Allocated memory is still 92.3 MB. Free memory was 57.0 MB in the beginning and 24.5 MB in the end (delta: 32.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. * Witness Printer took 151.28 ms. Allocated memory is still 92.3 MB. Free memory was 69.7 MB in the beginning and 62.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 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 - PositiveResult [Line: 950]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 950]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 950]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 19763.4ms, OverallIterations: 10, TraceHistogramMax: 2, EmptinessCheckTime: 28.8ms, AutomataDifference: 8355.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2519.3ms, InitialAbstractionConstructionTime: 14.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 836 SDtfs, 894 SDslu, 1440 SDs, 0 SdLazy, 199 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7747.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 860 GetRequests, 819 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 280.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=214occurred in iteration=9, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 169.0ms AutomataMinimizationTime, 10 MinimizatonAttempts, 432 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 43 LocationsWithAnnotation, 43 PreInvPairs, 106 NumberOfFragments, 647 HoareAnnotationTreeSize, 43 FomulaSimplifications, 24841 FormulaSimplificationTreeSizeReduction, 582.6ms HoareSimplificationTime, 43 FomulaSimplificationsInter, 3079 FormulaSimplificationTreeSizeReductionInter, 1923.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 262.3ms SsaConstructionTime, 1290.2ms SatisfiabilityAnalysisTime, 2936.7ms InterpolantComputationTime, 432 NumberOfCodeBlocks, 432 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 840 ConstructedInterpolants, 0 QuantifiedInterpolants, 1573 SizeOfPredicates, 23 NumberOfNonLiveVariables, 2617 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 24 InterpolantComputations, 18 PerfectInterpolantSequences, 78/96 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 936]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) && 1bv32 == \result)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 460]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && !(tmp == 0bv32)) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 214]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result) - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && 2bv32 == tmp) && systemActive == 1bv32) && 2bv32 == \result)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 2bv32 == tmp) && systemActive == 1bv32) && 2bv32 == \result) && 0bv32 == pumpRunning) - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 460]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 291]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 500]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) && 2bv32 == \result) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 2bv32 == \result) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 460]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && switchedOnBeforeTS == 1bv32) && 1bv32 == \result)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 489]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-24 11:07:46,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1288e980-9fb7-4a58-bd61-6bd43a613bd7/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...