./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.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_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 ............................................................................................................................................ 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_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:36:04,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:36:04,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:36:05,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:36:05,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:36:05,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:36:05,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:36:05,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:36:05,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:36:05,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:36:05,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:36:05,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:36:05,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:36:05,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:36:05,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:36:05,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:36:05,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:36:05,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:36:05,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:36:05,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:36:05,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:36:05,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:36:05,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:36:05,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:36:05,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:36:05,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:36:05,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:36:05,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:36:05,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:36:05,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:36:05,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:36:05,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:36:05,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:36:05,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:36:05,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:36:05,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:36:05,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:36:05,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:36:05,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:36:05,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:36:05,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:36:05,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:36:05,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:36:05,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:36:05,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:36:05,126 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:36:05,127 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:36:05,127 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:36:05,127 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:36:05,128 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:36:05,128 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:36:05,128 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:36:05,130 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:36:05,130 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:36:05,130 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:36:05,131 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:36:05,131 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:36:05,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:36:05,132 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:36:05,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:36:05,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:36:05,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:36:05,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:36:05,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:36:05,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:36:05,134 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:36:05,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:36:05,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:36:05,135 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:36:05,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:36:05,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:36:05,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:36:05,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:36:05,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:36:05,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:36:05,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:36:05,138 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:36:05,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:36:05,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:36:05,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:36:05,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:36:05,139 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_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 [2021-10-20 05:36:05,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:36:05,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:36:05,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:36:05,499 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:36:05,500 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:36:05,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2021-10-20 05:36:05,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/data/54424bda8/161854fb3fd14fe1bb8ed1b02e31e252/FLAG033a49119 [2021-10-20 05:36:06,277 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:36:06,284 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2021-10-20 05:36:06,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/data/54424bda8/161854fb3fd14fe1bb8ed1b02e31e252/FLAG033a49119 [2021-10-20 05:36:06,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/data/54424bda8/161854fb3fd14fe1bb8ed1b02e31e252 [2021-10-20 05:36:06,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:36:06,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:36:06,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:36:06,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:36:06,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:36:06,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:36:06" (1/1) ... [2021-10-20 05:36:06,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d75dcbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:06, skipping insertion in model container [2021-10-20 05:36:06,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:36:06" (1/1) ... [2021-10-20 05:36:06,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:36:06,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:36:06,875 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_4b5265eb-2be1-4df5-b41f-171025ce505c/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2021-10-20 05:36:07,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:36:07,027 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-20 05:36:07,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3685f5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:07, skipping insertion in model container [2021-10-20 05:36:07,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:36:07,030 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:36:07,033 INFO L168 Benchmark]: Toolchain (without parser) took 497.58 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 50.4 MB in the beginning and 88.8 MB in the end (delta: -38.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:07,035 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 67.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:36:07,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.90 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 50.2 MB in the beginning and 88.8 MB in the end (delta: -38.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:07,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 67.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 492.90 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 50.2 MB in the beginning and 88.8 MB in the end (delta: -38.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 589]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:36:09,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:36:09,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:36:09,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:36:09,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:36:09,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:36:09,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:36:09,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:36:09,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:36:09,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:36:09,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:36:09,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:36:09,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:36:09,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:36:09,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:36:09,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:36:09,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:36:09,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:36:09,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:36:09,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:36:09,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:36:09,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:36:09,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:36:09,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:36:09,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:36:09,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:36:09,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:36:09,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:36:09,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:36:09,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:36:09,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:36:09,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:36:09,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:36:09,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:36:09,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:36:09,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:36:09,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:36:09,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:36:09,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:36:09,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:36:09,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:36:09,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:36:09,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:36:09,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:36:09,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:36:09,725 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:36:09,725 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:36:09,725 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:36:09,725 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:36:09,726 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:36:09,726 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:36:09,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:36:09,729 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:36:09,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:36:09,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:36:09,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:36:09,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:36:09,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:36:09,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:36:09,730 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:36:09,730 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:36:09,730 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:36:09,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:36:09,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:36:09,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:36:09,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:36:09,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:36:09,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:36:09,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:36:09,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:36:09,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:36:09,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:36:09,733 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:36:09,733 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:36:09,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:36:09,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:36:09,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:36:09,734 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_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 [2021-10-20 05:36:10,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:36:10,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:36:10,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:36:10,205 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:36:10,206 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:36:10,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2021-10-20 05:36:10,298 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/data/eb9b9e994/824b2cbd5b844aeaa7ddc46958e5d54d/FLAG99ff2f187 [2021-10-20 05:36:11,103 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:36:11,104 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2021-10-20 05:36:11,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/data/eb9b9e994/824b2cbd5b844aeaa7ddc46958e5d54d/FLAG99ff2f187 [2021-10-20 05:36:11,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/data/eb9b9e994/824b2cbd5b844aeaa7ddc46958e5d54d [2021-10-20 05:36:11,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:36:11,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:36:11,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:36:11,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:36:11,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:36:11,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee00ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11, skipping insertion in model container [2021-10-20 05:36:11,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:36:11,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:36:11,648 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_4b5265eb-2be1-4df5-b41f-171025ce505c/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2021-10-20 05:36:11,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:36:11,845 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:36:11,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:36:11,896 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_4b5265eb-2be1-4df5-b41f-171025ce505c/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2021-10-20 05:36:11,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:36:12,011 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:36:12,051 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_4b5265eb-2be1-4df5-b41f-171025ce505c/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2021-10-20 05:36:12,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:36:12,164 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:36:12,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12 WrapperNode [2021-10-20 05:36:12,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:36:12,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:36:12,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:36:12,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:36:12,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (1/1) ... [2021-10-20 05:36:12,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (1/1) ... [2021-10-20 05:36:12,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:36:12,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:36:12,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:36:12,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:36:12,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (1/1) ... [2021-10-20 05:36:12,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (1/1) ... [2021-10-20 05:36:12,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (1/1) ... [2021-10-20 05:36:12,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (1/1) ... [2021-10-20 05:36:12,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (1/1) ... [2021-10-20 05:36:12,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (1/1) ... [2021-10-20 05:36:12,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (1/1) ... [2021-10-20 05:36:12,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:36:12,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:36:12,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:36:12,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:36:12,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (1/1) ... [2021-10-20 05:36:12,367 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:36:12,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:36:12,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:36:12,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:36:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:36:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:36:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:36:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:36:15,114 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:36:15,114 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-10-20 05:36:15,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:36:15 BoogieIcfgContainer [2021-10-20 05:36:15,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:36:15,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:36:15,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:36:15,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:36:15,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:36:11" (1/3) ... [2021-10-20 05:36:15,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3def3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:36:15, skipping insertion in model container [2021-10-20 05:36:15,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:12" (2/3) ... [2021-10-20 05:36:15,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3def3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:36:15, skipping insertion in model container [2021-10-20 05:36:15,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:36:15" (3/3) ... [2021-10-20 05:36:15,128 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2021-10-20 05:36:15,134 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:36:15,135 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-20 05:36:15,195 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:36:15,202 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:36:15,202 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-20 05:36:15,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 76 states have (on average 1.5789473684210527) internal successors, (120), 79 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:15,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-20 05:36:15,231 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:15,232 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:15,232 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:36:15,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:15,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1355288485, now seen corresponding path program 1 times [2021-10-20 05:36:15,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:15,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982917725] [2021-10-20 05:36:15,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:15,279 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:15,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:15,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:15,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:36:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:15,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-20 05:36:15,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:15,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:15,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:15,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:15,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982917725] [2021-10-20 05:36:15,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982917725] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:15,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:15,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:36:15,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552795309] [2021-10-20 05:36:15,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-20 05:36:15,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:15,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-20 05:36:15,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:36:15,703 INFO L87 Difference]: Start difference. First operand has 80 states, 76 states have (on average 1.5789473684210527) internal successors, (120), 79 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:15,745 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2021-10-20 05:36:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-20 05:36:15,747 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-20 05:36:15,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:15,758 INFO L225 Difference]: With dead ends: 154 [2021-10-20 05:36:15,758 INFO L226 Difference]: Without dead ends: 76 [2021-10-20 05:36:15,761 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:36:15,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-20 05:36:15,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-10-20 05:36:15,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 73 states have (on average 1.4794520547945205) internal successors, (108), 75 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2021-10-20 05:36:15,805 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2021-10-20 05:36:15,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:15,806 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2021-10-20 05:36:15,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:15,807 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2021-10-20 05:36:15,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-20 05:36:15,808 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:15,808 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:15,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:16,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:16,023 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:36:16,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:16,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1892921914, now seen corresponding path program 1 times [2021-10-20 05:36:16,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:16,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229117] [2021-10-20 05:36:16,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:16,025 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:16,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:16,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:16,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:36:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:16,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:36:16,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:16,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:16,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:16,451 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:16,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229117] [2021-10-20 05:36:16,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229117] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:16,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:16,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:36:16,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733821696] [2021-10-20 05:36:16,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:36:16,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:16,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:36:16,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:16,456 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:16,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:16,489 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2021-10-20 05:36:16,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:36:16,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-20 05:36:16,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:16,491 INFO L225 Difference]: With dead ends: 76 [2021-10-20 05:36:16,492 INFO L226 Difference]: Without dead ends: 36 [2021-10-20 05:36:16,493 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:16,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-20 05:36:16,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-20 05:36:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.457142857142857) internal successors, (51), 35 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:16,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2021-10-20 05:36:16,506 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2021-10-20 05:36:16,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:16,506 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2021-10-20 05:36:16,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:16,507 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2021-10-20 05:36:16,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-20 05:36:16,509 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:16,510 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:16,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-20 05:36:16,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:16,713 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:36:16,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:16,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602350, now seen corresponding path program 1 times [2021-10-20 05:36:16,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:16,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451751849] [2021-10-20 05:36:16,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:16,716 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:16,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:16,718 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:16,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:36:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:16,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:36:16,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:17,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:17,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:17,250 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:17,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451751849] [2021-10-20 05:36:17,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451751849] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:17,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:17,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-20 05:36:17,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515356610] [2021-10-20 05:36:17,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:36:17,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:17,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:36:17,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:17,257 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:17,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:17,304 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2021-10-20 05:36:17,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:36:17,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-20 05:36:17,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:17,307 INFO L225 Difference]: With dead ends: 119 [2021-10-20 05:36:17,308 INFO L226 Difference]: Without dead ends: 89 [2021-10-20 05:36:17,308 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:17,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-20 05:36:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2021-10-20 05:36:17,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 54 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:17,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2021-10-20 05:36:17,322 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2021-10-20 05:36:17,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:17,323 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2021-10-20 05:36:17,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:17,323 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2021-10-20 05:36:17,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-20 05:36:17,325 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:17,325 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:17,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:17,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:17,541 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:36:17,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:17,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1572373846, now seen corresponding path program 1 times [2021-10-20 05:36:17,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:17,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575261511] [2021-10-20 05:36:17,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:17,544 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:17,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:17,546 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:17,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:36:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:17,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:36:17,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:17,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:17,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:17,937 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:17,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575261511] [2021-10-20 05:36:17,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575261511] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:17,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:17,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:36:17,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188195133] [2021-10-20 05:36:17,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:36:17,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:17,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:36:17,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:36:17,942 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:18,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:18,039 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2021-10-20 05:36:18,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:36:18,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-20 05:36:18,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:18,041 INFO L225 Difference]: With dead ends: 125 [2021-10-20 05:36:18,041 INFO L226 Difference]: Without dead ends: 76 [2021-10-20 05:36:18,042 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:36:18,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-20 05:36:18,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2021-10-20 05:36:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.4383561643835616) internal successors, (105), 73 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2021-10-20 05:36:18,056 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2021-10-20 05:36:18,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:18,057 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2021-10-20 05:36:18,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2021-10-20 05:36:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-20 05:36:18,059 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:18,059 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:18,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:18,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:18,274 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:36:18,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:18,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1956458727, now seen corresponding path program 1 times [2021-10-20 05:36:18,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:18,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986651210] [2021-10-20 05:36:18,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:18,276 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:18,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:18,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:18,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 05:36:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:18,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:36:18,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:18,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:18,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:18,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:18,787 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:18,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986651210] [2021-10-20 05:36:18,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986651210] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:18,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:18,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-20 05:36:18,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939317614] [2021-10-20 05:36:18,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 05:36:18,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:18,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 05:36:18,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-20 05:36:18,791 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:18,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:18,909 INFO L93 Difference]: Finished difference Result 354 states and 517 transitions. [2021-10-20 05:36:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-20 05:36:18,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-20 05:36:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:18,913 INFO L225 Difference]: With dead ends: 354 [2021-10-20 05:36:18,913 INFO L226 Difference]: Without dead ends: 286 [2021-10-20 05:36:18,915 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 59.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-20 05:36:18,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-10-20 05:36:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 134. [2021-10-20 05:36:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.413533834586466) internal successors, (188), 133 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:18,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 188 transitions. [2021-10-20 05:36:18,955 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 188 transitions. Word has length 25 [2021-10-20 05:36:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:18,956 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 188 transitions. [2021-10-20 05:36:18,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 188 transitions. [2021-10-20 05:36:18,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-20 05:36:18,958 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:18,958 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] [2021-10-20 05:36:18,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:19,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:19,160 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:36:19,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:19,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1752651633, now seen corresponding path program 1 times [2021-10-20 05:36:19,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:19,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125995526] [2021-10-20 05:36:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:19,163 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:19,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:19,164 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:19,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-20 05:36:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:19,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:36:19,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:19,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:19,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:19,673 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:19,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125995526] [2021-10-20 05:36:19,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125995526] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:19,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:19,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-20 05:36:19,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256780] [2021-10-20 05:36:19,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 05:36:19,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:19,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 05:36:19,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-20 05:36:19,677 INFO L87 Difference]: Start difference. First operand 134 states and 188 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:19,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:19,879 INFO L93 Difference]: Finished difference Result 368 states and 521 transitions. [2021-10-20 05:36:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 05:36:19,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-20 05:36:19,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:19,883 INFO L225 Difference]: With dead ends: 368 [2021-10-20 05:36:19,884 INFO L226 Difference]: Without dead ends: 366 [2021-10-20 05:36:19,885 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 59.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-20 05:36:19,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-10-20 05:36:19,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 134. [2021-10-20 05:36:19,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.3984962406015038) internal successors, (186), 133 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 186 transitions. [2021-10-20 05:36:19,943 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 186 transitions. Word has length 26 [2021-10-20 05:36:19,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:19,943 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 186 transitions. [2021-10-20 05:36:19,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:19,944 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 186 transitions. [2021-10-20 05:36:19,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-20 05:36:19,954 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:19,954 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] [2021-10-20 05:36:19,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:20,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:20,173 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:36:20,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:20,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1960990159, now seen corresponding path program 1 times [2021-10-20 05:36:20,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:20,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432404342] [2021-10-20 05:36:20,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:20,175 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:20,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:20,177 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:20,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-20 05:36:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:20,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:36:20,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:20,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:20,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:20,701 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:20,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432404342] [2021-10-20 05:36:20,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432404342] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:20,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:20,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-20 05:36:20,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771467267] [2021-10-20 05:36:20,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 05:36:20,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:20,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 05:36:20,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-20 05:36:20,703 INFO L87 Difference]: Start difference. First operand 134 states and 186 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:20,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:20,801 INFO L93 Difference]: Finished difference Result 398 states and 551 transitions. [2021-10-20 05:36:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-20 05:36:20,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2021-10-20 05:36:20,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:20,805 INFO L225 Difference]: With dead ends: 398 [2021-10-20 05:36:20,805 INFO L226 Difference]: Without dead ends: 270 [2021-10-20 05:36:20,806 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:36:20,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-20 05:36:20,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 140. [2021-10-20 05:36:20,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.381294964028777) internal successors, (192), 139 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:20,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 192 transitions. [2021-10-20 05:36:20,831 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 192 transitions. Word has length 30 [2021-10-20 05:36:20,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:20,832 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 192 transitions. [2021-10-20 05:36:20,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:20,833 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 192 transitions. [2021-10-20 05:36:20,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-20 05:36:20,834 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:20,834 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] [2021-10-20 05:36:20,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:21,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:21,051 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:36:21,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:21,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1940950127, now seen corresponding path program 1 times [2021-10-20 05:36:21,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:21,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454652443] [2021-10-20 05:36:21,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:21,053 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:21,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:21,054 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:21,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-20 05:36:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:21,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:36:21,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:21,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:21,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:21,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:21,569 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:21,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454652443] [2021-10-20 05:36:21,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454652443] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:21,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:21,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 05:36:21,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154521536] [2021-10-20 05:36:21,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 05:36:21,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:21,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 05:36:21,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-20 05:36:21,580 INFO L87 Difference]: Start difference. First operand 140 states and 192 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-10-20 05:36:21,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:21,672 INFO L93 Difference]: Finished difference Result 432 states and 590 transitions. [2021-10-20 05:36:21,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 05:36:21,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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 30 [2021-10-20 05:36:21,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:21,676 INFO L225 Difference]: With dead ends: 432 [2021-10-20 05:36:21,676 INFO L226 Difference]: Without dead ends: 298 [2021-10-20 05:36:21,679 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:36:21,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-10-20 05:36:21,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 144. [2021-10-20 05:36:21,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.3706293706293706) internal successors, (196), 143 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:21,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 196 transitions. [2021-10-20 05:36:21,714 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 196 transitions. Word has length 30 [2021-10-20 05:36:21,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:21,715 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 196 transitions. [2021-10-20 05:36:21,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-10-20 05:36:21,716 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 196 transitions. [2021-10-20 05:36:21,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-20 05:36:21,717 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:21,717 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] [2021-10-20 05:36:21,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:21,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:21,935 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:36:21,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:21,935 INFO L82 PathProgramCache]: Analyzing trace with hash -2095851731, now seen corresponding path program 1 times [2021-10-20 05:36:21,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:21,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493393140] [2021-10-20 05:36:21,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:21,937 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:21,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:21,938 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:21,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-20 05:36:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:22,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:36:22,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:22,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:22,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:22,395 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:22,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493393140] [2021-10-20 05:36:22,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493393140] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:22,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:22,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-20 05:36:22,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838995077] [2021-10-20 05:36:22,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:36:22,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:22,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:36:22,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:22,398 INFO L87 Difference]: Start difference. First operand 144 states and 196 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:22,514 INFO L93 Difference]: Finished difference Result 492 states and 672 transitions. [2021-10-20 05:36:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:36:22,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 30 [2021-10-20 05:36:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:22,517 INFO L225 Difference]: With dead ends: 492 [2021-10-20 05:36:22,517 INFO L226 Difference]: Without dead ends: 354 [2021-10-20 05:36:22,518 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:22,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-10-20 05:36:22,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 266. [2021-10-20 05:36:22,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.3547169811320754) internal successors, (359), 265 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:22,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 359 transitions. [2021-10-20 05:36:22,563 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 359 transitions. Word has length 30 [2021-10-20 05:36:22,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:22,564 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 359 transitions. [2021-10-20 05:36:22,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:22,564 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 359 transitions. [2021-10-20 05:36:22,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-20 05:36:22,566 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:22,566 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] [2021-10-20 05:36:22,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:22,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:22,781 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:36:22,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:22,782 INFO L82 PathProgramCache]: Analyzing trace with hash 191299371, now seen corresponding path program 1 times [2021-10-20 05:36:22,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:22,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748988003] [2021-10-20 05:36:22,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:22,783 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:22,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:22,784 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:22,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-20 05:36:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:36:24,685 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:36:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:36:26,123 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-20 05:36:26,124 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:36:26,125 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:36:26,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:36:26,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:36:26,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:26,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:26,357 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:36:26,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:36:26 BoogieIcfgContainer [2021-10-20 05:36:26,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:36:26,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:36:26,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:36:26,497 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:36:26,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:36:15" (3/4) ... [2021-10-20 05:36:26,500 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:36:26,631 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:36:26,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:36:26,643 INFO L168 Benchmark]: Toolchain (without parser) took 15273.45 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 40.7 MB in the beginning and 61.7 MB in the end (delta: -21.0 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:26,644 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory is still 57.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:36:26,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.31 ms. Allocated memory is still 75.5 MB. Free memory was 40.6 MB in the beginning and 46.2 MB in the end (delta: -5.6 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:26,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.96 ms. Allocated memory is still 75.5 MB. Free memory was 46.2 MB in the beginning and 43.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:26,645 INFO L168 Benchmark]: Boogie Preprocessor took 80.07 ms. Allocated memory is still 75.5 MB. Free memory was 43.2 MB in the beginning and 40.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:26,646 INFO L168 Benchmark]: RCFGBuilder took 2759.19 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 40.8 MB in the beginning and 71.6 MB in the end (delta: -30.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:26,646 INFO L168 Benchmark]: TraceAbstraction took 11376.26 ms. Allocated memory is still 102.8 MB. Free memory was 71.0 MB in the beginning and 75.4 MB in the end (delta: -4.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:26,647 INFO L168 Benchmark]: Witness Printer took 144.62 ms. Allocated memory is still 102.8 MB. Free memory was 75.4 MB in the beginning and 61.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:26,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory is still 57.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 794.31 ms. Allocated memory is still 75.5 MB. Free memory was 40.6 MB in the beginning and 46.2 MB in the end (delta: -5.6 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.96 ms. Allocated memory is still 75.5 MB. Free memory was 46.2 MB in the beginning and 43.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.07 ms. Allocated memory is still 75.5 MB. Free memory was 43.2 MB in the beginning and 40.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2759.19 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 40.8 MB in the beginning and 71.6 MB in the end (delta: -30.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11376.26 ms. Allocated memory is still 102.8 MB. Free memory was 71.0 MB in the beginning and 75.4 MB in the end (delta: -4.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. * Witness Printer took 144.62 ms. Allocated memory is still 102.8 MB. Free memory was 75.4 MB in the beginning and 61.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 155]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L260] int pumpRunning = 0; [L261] int systemActive = 1; [L465] int cleanupTimeShifts = 4; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] int retValue_acc ; [L539] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] int retValue_acc ; [L459] retValue_acc = 1 [L460] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] tmp = valid_product() [L547] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L191] int splverifierCounter ; [L192] int tmp ; [L193] int tmp___0 ; [L194] int tmp___1 ; [L195] int tmp___2 ; [L198] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L200] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L202] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L208] tmp = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L218] tmp___0 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L87] COND FALSE !(\read(methaneLevelCritical)) [L90] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L228] tmp___2 = __VERIFIER_nondet_int() [L230] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L267] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L274] COND TRUE \read(systemActive) [L296] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L299] COND TRUE ! pumpRunning [L393] int retValue_acc ; [L394] int tmp ; [L395] int tmp___0 ; [L137] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L399] tmp = isHighWaterSensorDry() [L401] COND FALSE !(\read(tmp)) [L404] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L406] retValue_acc = tmp___0 [L407] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L301] tmp = isHighWaterLevel() [L303] COND TRUE \read(tmp) [L324] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L162] int tmp ; [L163] int tmp___0 ; [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L167] tmp = isMethaneLevelCritical() [L169] COND TRUE \read(tmp) [L348] int retValue_acc ; [L351] retValue_acc = pumpRunning [L352] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L171] tmp___0 = isPumpRunning() [L173] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L155] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 155]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 11162.0ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 36.5ms, AutomataDifference: 925.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 633 SDtfs, 868 SDslu, 1063 SDs, 0 SdLazy, 119 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 272.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 436 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 246.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=9, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 270.0ms AutomataMinimizationTime, 9 MinimizatonAttempts, 792 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 239.0ms SsaConstructionTime, 2874.7ms SatisfiabilityAnalysisTime, 2008.1ms InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 721 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1806 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-20 05:36:26,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5265eb-2be1-4df5-b41f-171025ce505c/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...