./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG --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 d7c4dde0ada366116691c2f175a080cab4880a7b4b6a5f42c97520b77f10420a ............................................................................................................................................ 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_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG --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 d7c4dde0ada366116691c2f175a080cab4880a7b4b6a5f42c97520b77f10420a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-b2eff8b [2021-10-29 05:00:27,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:00:27,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:00:27,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:00:27,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:00:27,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:00:27,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:00:27,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:00:27,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:00:27,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:00:27,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:00:27,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:00:27,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:00:28,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:00:28,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:00:28,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:00:28,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:00:28,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:00:28,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:00:28,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:00:28,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:00:28,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:00:28,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:00:28,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:00:28,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:00:28,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:00:28,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:00:28,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:00:28,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:00:28,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:00:28,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:00:28,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:00:28,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:00:28,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:00:28,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:00:28,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:00:28,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:00:28,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:00:28,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:00:28,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:00:28,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:00:28,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:00:28,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:00:28,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:00:28,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:00:28,120 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:00:28,121 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:00:28,121 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:00:28,121 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:00:28,122 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:00:28,122 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:00:28,122 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:00:28,124 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:00:28,124 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:00:28,125 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:00:28,125 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:00:28,125 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:00:28,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:00:28,127 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:00:28,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:00:28,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:00:28,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:00:28,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:00:28,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:00:28,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:00:28,129 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:00:28,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:00:28,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:00:28,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:00:28,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:00:28,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:00:28,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:00:28,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:28,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:00:28,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:00:28,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:00:28,135 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:00:28,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:00:28,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:00:28,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:00:28,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:00:28,136 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_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7c4dde0ada366116691c2f175a080cab4880a7b4b6a5f42c97520b77f10420a [2021-10-29 05:00:28,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:00:28,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:00:28,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:00:28,457 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:00:28,458 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:00:28,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2021-10-29 05:00:28,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/data/c9a85885a/1cb44035eb5f409c858194e016e026b1/FLAG7ffa11d83 [2021-10-29 05:00:29,122 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:00:29,123 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2021-10-29 05:00:29,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/data/c9a85885a/1cb44035eb5f409c858194e016e026b1/FLAG7ffa11d83 [2021-10-29 05:00:29,412 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/data/c9a85885a/1cb44035eb5f409c858194e016e026b1 [2021-10-29 05:00:29,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:00:29,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:00:29,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:29,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:00:29,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:00:29,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:29" (1/1) ... [2021-10-29 05:00:29,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149b51ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:29, skipping insertion in model container [2021-10-29 05:00:29,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:29" (1/1) ... [2021-10-29 05:00:29,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:00:29,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:00:29,890 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_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c[18430,18443] [2021-10-29 05:00:29,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:29,913 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) [2021-10-29 05:00:29,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2623321a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:29, skipping insertion in model container [2021-10-29 05:00:29,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:29,924 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:00:29,927 INFO L168 Benchmark]: Toolchain (without parser) took 508.65 ms. Allocated memory is still 111.1 MB. Free memory was 67.4 MB in the beginning and 82.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:29,929 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory was 85.1 MB in the beginning and 85.0 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:00:29,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.20 ms. Allocated memory is still 111.1 MB. Free memory was 67.2 MB in the beginning and 82.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:29,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory was 85.1 MB in the beginning and 85.0 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 505.20 ms. Allocated memory is still 111.1 MB. Free memory was 67.2 MB in the beginning and 82.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 211]: 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-b2eff8b [2021-10-29 05:00:32,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:00:32,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:00:32,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:00:32,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:00:32,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:00:32,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:00:32,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:00:32,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:00:32,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:00:32,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:00:32,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:00:32,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:00:32,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:00:32,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:00:32,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:00:32,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:00:32,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:00:32,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:00:32,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:00:32,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:00:32,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:00:32,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:00:32,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:00:32,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:00:32,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:00:32,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:00:32,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:00:32,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:00:32,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:00:32,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:00:32,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:00:32,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:00:32,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:00:32,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:00:32,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:00:32,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:00:32,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:00:32,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:00:32,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:00:32,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:00:32,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:00:32,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:00:32,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:00:32,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:00:32,682 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:00:32,683 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:00:32,683 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:00:32,684 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:00:32,684 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:00:32,685 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:00:32,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:00:32,687 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:00:32,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:00:32,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:00:32,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:00:32,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:00:32,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:00:32,690 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:00:32,690 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:00:32,691 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:00:32,691 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:00:32,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:00:32,692 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:00:32,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:00:32,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:00:32,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:00:32,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:00:32,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:32,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:00:32,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:00:32,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:00:32,696 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:00:32,696 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:00:32,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:00:32,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:00:32,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:00:32,697 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_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7c4dde0ada366116691c2f175a080cab4880a7b4b6a5f42c97520b77f10420a [2021-10-29 05:00:33,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:00:33,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:00:33,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:00:33,251 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:00:33,256 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:00:33,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2021-10-29 05:00:33,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/data/98a415502/f8c6f85467e4485db540bbd88a0798ae/FLAG3ce96521d [2021-10-29 05:00:34,121 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:00:34,122 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2021-10-29 05:00:34,155 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/data/98a415502/f8c6f85467e4485db540bbd88a0798ae/FLAG3ce96521d [2021-10-29 05:00:34,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/data/98a415502/f8c6f85467e4485db540bbd88a0798ae [2021-10-29 05:00:34,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:00:34,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:00:34,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:34,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:00:34,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:00:34,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:34" (1/1) ... [2021-10-29 05:00:34,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3211fca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:34, skipping insertion in model container [2021-10-29 05:00:34,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:34" (1/1) ... [2021-10-29 05:00:34,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:00:34,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:00:34,836 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_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c[18430,18443] [2021-10-29 05:00:34,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:34,869 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:00:34,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:00:34,965 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_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c[18430,18443] [2021-10-29 05:00:34,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:34,977 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:00:35,112 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_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c[18430,18443] [2021-10-29 05:00:35,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:35,135 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:00:35,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35 WrapperNode [2021-10-29 05:00:35,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:35,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:00:35,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:00:35,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:00:35,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (1/1) ... [2021-10-29 05:00:35,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (1/1) ... [2021-10-29 05:00:35,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:00:35,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:00:35,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:00:35,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:00:35,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (1/1) ... [2021-10-29 05:00:35,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (1/1) ... [2021-10-29 05:00:35,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (1/1) ... [2021-10-29 05:00:35,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (1/1) ... [2021-10-29 05:00:35,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (1/1) ... [2021-10-29 05:00:35,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (1/1) ... [2021-10-29 05:00:35,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (1/1) ... [2021-10-29 05:00:35,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:00:35,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:00:35,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:00:35,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:00:35,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (1/1) ... [2021-10-29 05:00:35,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:35,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:00:35,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:00:35,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:00:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:00:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:00:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:00:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:00:38,224 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:00:38,227 INFO L299 CfgBuilder]: Removed 156 assume(true) statements. [2021-10-29 05:00:38,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:38 BoogieIcfgContainer [2021-10-29 05:00:38,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:00:38,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:00:38,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:00:38,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:00:38,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:00:34" (1/3) ... [2021-10-29 05:00:38,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5476afea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:00:38, skipping insertion in model container [2021-10-29 05:00:38,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:35" (2/3) ... [2021-10-29 05:00:38,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5476afea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:00:38, skipping insertion in model container [2021-10-29 05:00:38,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:38" (3/3) ... [2021-10-29 05:00:38,242 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2021-10-29 05:00:38,249 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:00:38,250 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 05:00:38,319 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:00:38,326 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 [2021-10-29 05:00:38,326 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 05:00:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 113 states have (on average 1.5663716814159292) internal successors, (177), 116 states have internal predecessors, (177), 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) [2021-10-29 05:00:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 05:00:38,356 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:38,356 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:38,357 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:38,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:38,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1641629540, now seen corresponding path program 1 times [2021-10-29 05:00:38,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:38,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156766059] [2021-10-29 05:00:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:38,383 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:38,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:38,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:38,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:00:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:38,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:00:38,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:38,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:38,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:38,873 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:38,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156766059] [2021-10-29 05:00:38,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156766059] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:38,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:38,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:00:38,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57644213] [2021-10-29 05:00:38,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:00:38,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:38,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:00:38,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:00:38,908 INFO L87 Difference]: Start difference. First operand has 117 states, 113 states have (on average 1.5663716814159292) internal successors, (177), 116 states have internal predecessors, (177), 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) [2021-10-29 05:00:38,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:38,972 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2021-10-29 05:00:38,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:00:38,973 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 [2021-10-29 05:00:38,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:38,991 INFO L225 Difference]: With dead ends: 228 [2021-10-29 05:00:38,992 INFO L226 Difference]: Without dead ends: 113 [2021-10-29 05:00:38,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:00:39,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-29 05:00:39,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-29 05:00:39,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.5) internal successors, (165), 112 states have internal predecessors, (165), 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) [2021-10-29 05:00:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2021-10-29 05:00:39,058 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2021-10-29 05:00:39,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:39,059 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2021-10-29 05:00:39,059 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) [2021-10-29 05:00:39,060 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2021-10-29 05:00:39,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 05:00:39,062 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:39,063 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:39,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:39,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:39,283 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:39,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:39,284 INFO L85 PathProgramCache]: Analyzing trace with hash 594872643, now seen corresponding path program 1 times [2021-10-29 05:00:39,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:39,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536328845] [2021-10-29 05:00:39,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:39,286 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:39,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:39,290 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:39,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:00:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:39,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:00:39,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:39,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:39,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:39,657 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:39,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536328845] [2021-10-29 05:00:39,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536328845] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:39,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:39,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:00:39,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415974175] [2021-10-29 05:00:39,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:00:39,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:39,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:00:39,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:00:39,662 INFO L87 Difference]: Start difference. First operand 113 states and 165 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) [2021-10-29 05:00:39,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:39,679 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2021-10-29 05:00:39,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:00:39,680 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 [2021-10-29 05:00:39,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:39,681 INFO L225 Difference]: With dead ends: 113 [2021-10-29 05:00:39,681 INFO L226 Difference]: Without dead ends: 47 [2021-10-29 05:00:39,682 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:00:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-29 05:00:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-29 05:00:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 46 states have internal predecessors, (68), 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) [2021-10-29 05:00:39,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2021-10-29 05:00:39,706 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2021-10-29 05:00:39,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:39,707 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2021-10-29 05:00:39,707 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) [2021-10-29 05:00:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2021-10-29 05:00:39,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:00:39,708 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:39,709 INFO L513 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] [2021-10-29 05:00:39,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:39,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:39,923 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:39,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:39,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1404483435, now seen corresponding path program 1 times [2021-10-29 05:00:39,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:39,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683853072] [2021-10-29 05:00:39,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:39,927 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:39,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:39,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:39,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:00:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:40,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:00:40,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:40,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:40,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:40,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:40,409 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:40,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683853072] [2021-10-29 05:00:40,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683853072] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:40,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:40,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:00:40,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998364270] [2021-10-29 05:00:40,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:00:40,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:00:40,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:00:40,416 INFO L87 Difference]: Start difference. First operand 47 states and 68 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) [2021-10-29 05:00:40,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:40,441 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2021-10-29 05:00:40,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:00:40,442 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 [2021-10-29 05:00:40,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:40,446 INFO L225 Difference]: With dead ends: 88 [2021-10-29 05:00:40,446 INFO L226 Difference]: Without dead ends: 47 [2021-10-29 05:00:40,447 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:00:40,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-29 05:00:40,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-29 05:00:40,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 46 states have internal predecessors, (67), 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) [2021-10-29 05:00:40,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2021-10-29 05:00:40,464 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2021-10-29 05:00:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:40,465 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2021-10-29 05:00:40,466 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) [2021-10-29 05:00:40,466 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2021-10-29 05:00:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:00:40,469 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:40,469 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:40,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:40,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:40,686 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:40,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:40,687 INFO L85 PathProgramCache]: Analyzing trace with hash -764351347, now seen corresponding path program 1 times [2021-10-29 05:00:40,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:40,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866314725] [2021-10-29 05:00:40,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:40,688 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:40,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:40,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:40,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:00:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:40,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:00:40,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:40,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:41,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:41,043 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:41,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866314725] [2021-10-29 05:00:41,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866314725] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:41,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:41,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:00:41,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704846659] [2021-10-29 05:00:41,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:00:41,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:41,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:00:41,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:00:41,048 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-29 05:00:41,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:41,117 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2021-10-29 05:00:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:00:41,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-29 05:00:41,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:41,121 INFO L225 Difference]: With dead ends: 109 [2021-10-29 05:00:41,121 INFO L226 Difference]: Without dead ends: 68 [2021-10-29 05:00:41,124 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:00:41,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-29 05:00:41,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2021-10-29 05:00:41,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 65 states have internal predecessors, (93), 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) [2021-10-29 05:00:41,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-10-29 05:00:41,144 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2021-10-29 05:00:41,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:41,144 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-29 05:00:41,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-29 05:00:41,145 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2021-10-29 05:00:41,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 05:00:41,146 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:41,146 INFO L513 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] [2021-10-29 05:00:41,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:41,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:41,358 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:41,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:41,359 INFO L85 PathProgramCache]: Analyzing trace with hash -805303330, now seen corresponding path program 1 times [2021-10-29 05:00:41,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:41,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952120546] [2021-10-29 05:00:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:41,360 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:41,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:41,362 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:41,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:00:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:41,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:00:41,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:41,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:41,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:41,771 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:41,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952120546] [2021-10-29 05:00:41,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952120546] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:41,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:41,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:00:41,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127208271] [2021-10-29 05:00:41,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:00:41,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:41,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:00:41,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:00:41,778 INFO L87 Difference]: Start difference. First operand 66 states and 93 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) [2021-10-29 05:00:41,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:41,869 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2021-10-29 05:00:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:00:41,870 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 [2021-10-29 05:00:41,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:41,872 INFO L225 Difference]: With dead ends: 175 [2021-10-29 05:00:41,873 INFO L226 Difference]: Without dead ends: 115 [2021-10-29 05:00:41,873 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:00:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-29 05:00:41,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2021-10-29 05:00:41,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 71 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:00:41,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2021-10-29 05:00:41,892 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2021-10-29 05:00:41,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:41,893 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2021-10-29 05:00:41,893 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) [2021-10-29 05:00:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2021-10-29 05:00:41,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 05:00:41,900 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:41,901 INFO L513 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] [2021-10-29 05:00:41,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:42,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:42,121 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:42,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:42,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1857207713, now seen corresponding path program 1 times [2021-10-29 05:00:42,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:42,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375781519] [2021-10-29 05:00:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:42,123 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:42,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:42,124 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:42,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:00:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:42,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:00:42,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:42,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:42,623 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:42,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375781519] [2021-10-29 05:00:42,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375781519] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:42,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:42,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:00:42,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615957831] [2021-10-29 05:00:42,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:00:42,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:42,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:00:42,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:00:42,629 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 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) [2021-10-29 05:00:42,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:42,736 INFO L93 Difference]: Finished difference Result 382 states and 538 transitions. [2021-10-29 05:00:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:00:42,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 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 [2021-10-29 05:00:42,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:42,741 INFO L225 Difference]: With dead ends: 382 [2021-10-29 05:00:42,742 INFO L226 Difference]: Without dead ends: 316 [2021-10-29 05:00:42,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:00:42,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-10-29 05:00:42,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 132. [2021-10-29 05:00:42,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.381679389312977) internal successors, (181), 131 states have internal predecessors, (181), 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) [2021-10-29 05:00:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 181 transitions. [2021-10-29 05:00:42,789 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 181 transitions. Word has length 30 [2021-10-29 05:00:42,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:42,789 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 181 transitions. [2021-10-29 05:00:42,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 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) [2021-10-29 05:00:42,790 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 181 transitions. [2021-10-29 05:00:42,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 05:00:42,794 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:42,795 INFO L513 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] [2021-10-29 05:00:42,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-29 05:00:43,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:43,009 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:43,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1765991081, now seen corresponding path program 1 times [2021-10-29 05:00:43,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:43,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561043844] [2021-10-29 05:00:43,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:43,011 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:43,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:43,012 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:43,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 05:00:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:43,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:00:43,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:43,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:43,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:43,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:43,550 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:43,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561043844] [2021-10-29 05:00:43,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561043844] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:43,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:43,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:00:43,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129442503] [2021-10-29 05:00:43,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:00:43,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:43,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:00:43,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:00:43,553 INFO L87 Difference]: Start difference. First operand 132 states and 181 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-29 05:00:43,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:43,790 INFO L93 Difference]: Finished difference Result 378 states and 520 transitions. [2021-10-29 05:00:43,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:00:43,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-10-29 05:00:43,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:43,796 INFO L225 Difference]: With dead ends: 378 [2021-10-29 05:00:43,797 INFO L226 Difference]: Without dead ends: 376 [2021-10-29 05:00:43,798 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:00:43,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-10-29 05:00:43,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 132. [2021-10-29 05:00:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.3740458015267176) internal successors, (180), 131 states have internal predecessors, (180), 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) [2021-10-29 05:00:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 180 transitions. [2021-10-29 05:00:43,840 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 180 transitions. Word has length 31 [2021-10-29 05:00:43,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:43,841 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 180 transitions. [2021-10-29 05:00:43,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-29 05:00:43,841 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 180 transitions. [2021-10-29 05:00:43,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 05:00:43,842 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:43,842 INFO L513 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] [2021-10-29 05:00:43,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:44,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:44,057 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:44,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:44,057 INFO L85 PathProgramCache]: Analyzing trace with hash -526561838, now seen corresponding path program 1 times [2021-10-29 05:00:44,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:44,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917243825] [2021-10-29 05:00:44,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:44,058 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:44,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:44,059 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:44,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 05:00:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:44,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:00:44,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:44,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:44,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:44,553 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:44,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917243825] [2021-10-29 05:00:44,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917243825] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:44,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:44,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:00:44,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243525472] [2021-10-29 05:00:44,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:00:44,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:44,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:00:44,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:00:44,556 INFO L87 Difference]: Start difference. First operand 132 states and 180 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-29 05:00:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:44,657 INFO L93 Difference]: Finished difference Result 354 states and 478 transitions. [2021-10-29 05:00:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:00:44,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 31 [2021-10-29 05:00:44,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:44,660 INFO L225 Difference]: With dead ends: 354 [2021-10-29 05:00:44,660 INFO L226 Difference]: Without dead ends: 228 [2021-10-29 05:00:44,660 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:00:44,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-10-29 05:00:44,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 140. [2021-10-29 05:00:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.3525179856115108) internal successors, (188), 139 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) [2021-10-29 05:00:44,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 188 transitions. [2021-10-29 05:00:44,679 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 188 transitions. Word has length 31 [2021-10-29 05:00:44,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:44,679 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 188 transitions. [2021-10-29 05:00:44,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-29 05:00:44,680 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 188 transitions. [2021-10-29 05:00:44,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 05:00:44,680 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:44,681 INFO L513 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] [2021-10-29 05:00:44,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:44,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:44,894 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:44,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:44,894 INFO L85 PathProgramCache]: Analyzing trace with hash -268396400, now seen corresponding path program 1 times [2021-10-29 05:00:44,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:44,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221120628] [2021-10-29 05:00:44,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:44,895 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:44,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:44,897 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:44,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 05:00:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:45,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:00:45,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:45,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:45,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:45,453 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:45,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221120628] [2021-10-29 05:00:45,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221120628] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:45,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:45,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:00:45,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838437081] [2021-10-29 05:00:45,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:00:45,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:45,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:00:45,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:00:45,455 INFO L87 Difference]: Start difference. First operand 140 states and 188 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 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) [2021-10-29 05:00:45,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:45,545 INFO L93 Difference]: Finished difference Result 430 states and 580 transitions. [2021-10-29 05:00:45,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:00:45,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-29 05:00:45,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:45,548 INFO L225 Difference]: With dead ends: 430 [2021-10-29 05:00:45,548 INFO L226 Difference]: Without dead ends: 296 [2021-10-29 05:00:45,549 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:00:45,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-10-29 05:00:45,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 244. [2021-10-29 05:00:45,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 1.337448559670782) internal successors, (325), 243 states have internal predecessors, (325), 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) [2021-10-29 05:00:45,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 325 transitions. [2021-10-29 05:00:45,585 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 325 transitions. Word has length 31 [2021-10-29 05:00:45,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:45,586 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 325 transitions. [2021-10-29 05:00:45,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 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) [2021-10-29 05:00:45,586 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 325 transitions. [2021-10-29 05:00:45,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 05:00:45,587 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:45,587 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:45,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:45,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:45,802 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:45,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:45,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1913811026, now seen corresponding path program 1 times [2021-10-29 05:00:45,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:45,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983792560] [2021-10-29 05:00:45,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:45,804 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:45,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:45,805 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:45,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 05:00:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:00:47,556 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:00:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:00:48,793 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 05:00:48,793 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:00:48,795 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:00:48,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:00:48,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:00:48,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:49,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:49,023 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:49,026 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:00:49,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:00:49 BoogieIcfgContainer [2021-10-29 05:00:49,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:00:49,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:00:49,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:00:49,149 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:00:49,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:38" (3/4) ... [2021-10-29 05:00:49,152 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:00:49,262 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:00:49,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:00:49,264 INFO L168 Benchmark]: Toolchain (without parser) took 14871.23 ms. Allocated memory was 54.5 MB in the beginning and 92.3 MB in the end (delta: 37.7 MB). Free memory was 31.9 MB in the beginning and 51.6 MB in the end (delta: -19.7 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:49,265 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory is still 35.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:00:49,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.14 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 31.7 MB in the beginning and 44.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:49,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.57 ms. Allocated memory is still 75.5 MB. Free memory was 44.0 MB in the beginning and 40.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:49,266 INFO L168 Benchmark]: Boogie Preprocessor took 76.34 ms. Allocated memory is still 75.5 MB. Free memory was 40.6 MB in the beginning and 57.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:49,267 INFO L168 Benchmark]: RCFGBuilder took 2925.38 ms. Allocated memory is still 75.5 MB. Free memory was 57.2 MB in the beginning and 45.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:49,268 INFO L168 Benchmark]: TraceAbstraction took 10914.55 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 45.1 MB in the beginning and 65.0 MB in the end (delta: -19.9 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:49,268 INFO L168 Benchmark]: Witness Printer took 114.08 ms. Allocated memory is still 92.3 MB. Free memory was 65.0 MB in the beginning and 51.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:49,271 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory is still 35.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 743.14 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 31.7 MB in the beginning and 44.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.57 ms. Allocated memory is still 75.5 MB. Free memory was 44.0 MB in the beginning and 40.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.34 ms. Allocated memory is still 75.5 MB. Free memory was 40.6 MB in the beginning and 57.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2925.38 ms. Allocated memory is still 75.5 MB. Free memory was 57.2 MB in the beginning and 45.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10914.55 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 45.1 MB in the beginning and 65.0 MB in the end (delta: -19.9 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. * Witness Printer took 114.08 ms. Allocated memory is still 92.3 MB. Free memory was 65.0 MB in the beginning and 51.6 MB in the end (delta: 13.4 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 960]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L79] int cleanupTimeShifts = 4; [L352] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L853] int waterLevel = 1; [L854] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L160] int retValue_acc ; [L161] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L843] int retValue_acc ; [L846] retValue_acc = 1 [L847] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] tmp = valid_product() [L169] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L753] int splverifierCounter ; [L754] int tmp ; [L755] int tmp___0 ; [L756] int tmp___1 ; [L757] int tmp___2 ; [L760] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L762] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L764] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L770] tmp = __VERIFIER_nondet_int() [L772] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] COND TRUE waterLevel < 2 [L872] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L780] tmp___0 = __VERIFIER_nondet_int() [L782] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L883] COND FALSE !(\read(methaneLevelCritical)) [L886] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L790] tmp___2 = __VERIFIER_nondet_int() [L792] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L562] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L569] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND FALSE !(\read(pumpRunning)) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE ! pumpRunning [L714] int retValue_acc ; [L715] int tmp ; [L716] int tmp___0 ; [L933] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L936] COND FALSE !(waterLevel < 2) [L940] retValue_acc = 0 [L941] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L720] tmp = isHighWaterSensorDry() [L722] COND FALSE !(\read(tmp)) [L725] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L727] retValue_acc = tmp___0 [L728] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) [L645] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L54] int tmp ; [L55] int tmp___0 ; [L892] int retValue_acc ; [L895] retValue_acc = methaneLevelCritical [L896] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] tmp = isMethaneLevelCritical() [L61] COND TRUE \read(tmp) [L669] int retValue_acc ; [L672] retValue_acc = pumpRunning [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L960] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 960]: 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: 960]: 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, 117 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 847 SDtfs, 1050 SDslu, 1172 SDs, 0 SdLazy, 153 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 613 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 799 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1824 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! [2021-10-29 05:00:49,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11239-9c41-4cd6-bc05-3ffdcc128d38/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...