./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f ............................................................................................................................................ 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_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:14:47,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:14:47,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:14:47,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:14:47,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:14:47,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:14:47,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:14:47,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:14:48,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:14:48,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:14:48,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:14:48,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:14:48,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:14:48,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:14:48,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:14:48,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:14:48,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:14:48,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:14:48,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:14:48,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:14:48,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:14:48,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:14:48,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:14:48,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:14:48,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:14:48,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:14:48,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:14:48,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:14:48,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:14:48,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:14:48,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:14:48,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:14:48,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:14:48,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:14:48,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:14:48,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:14:48,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:14:48,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:14:48,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:14:48,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:14:48,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:14:48,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:14:48,096 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:14:48,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:14:48,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:14:48,101 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:14:48,101 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:14:48,102 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:14:48,102 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:14:48,102 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:14:48,102 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:14:48,103 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:14:48,104 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:14:48,104 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:14:48,104 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:14:48,105 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:14:48,105 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:14:48,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:14:48,106 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:14:48,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:14:48,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:14:48,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:14:48,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:14:48,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:14:48,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:14:48,107 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:14:48,108 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:14:48,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:14:48,108 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:14:48,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:14:48,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:14:48,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:14:48,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:14:48,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:14:48,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:14:48,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:14:48,112 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:14:48,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:14:48,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:14:48,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:14:48,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:14:48,113 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_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f [2021-10-24 10:14:48,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:14:48,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:14:48,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:14:48,429 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:14:48,430 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:14:48,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-10-24 10:14:48,526 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/data/f1853c38b/616b2bf43641404b89428a75ba311cce/FLAGb6b6d6931 [2021-10-24 10:14:49,087 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:14:49,088 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-10-24 10:14:49,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/data/f1853c38b/616b2bf43641404b89428a75ba311cce/FLAGb6b6d6931 [2021-10-24 10:14:49,386 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/data/f1853c38b/616b2bf43641404b89428a75ba311cce [2021-10-24 10:14:49,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:14:49,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:14:49,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:14:49,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:14:49,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:14:49,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:14:49" (1/1) ... [2021-10-24 10:14:49,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab0d3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:49, skipping insertion in model container [2021-10-24 10:14:49,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:14:49" (1/1) ... [2021-10-24 10:14:49,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:14:49,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:14:49,850 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_359ee50e-315a-43cd-b951-dde737f340b9/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2021-10-24 10:14:49,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:14:49,866 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 10:14:49,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@51f85b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:49, skipping insertion in model container [2021-10-24 10:14:49,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:14:49,867 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:14:49,870 INFO L168 Benchmark]: Toolchain (without parser) took 478.37 ms. Allocated memory is still 115.3 MB. Free memory was 79.1 MB in the beginning and 86.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:49,871 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 63.8 MB in the beginning and 63.7 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:14:49,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.74 ms. Allocated memory is still 115.3 MB. Free memory was 78.9 MB in the beginning and 86.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:49,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 63.8 MB in the beginning and 63.7 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 467.74 ms. Allocated memory is still 115.3 MB. Free memory was 78.9 MB in the beginning and 86.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 182]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:14:52,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:14:52,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:14:52,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:14:52,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:14:52,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:14:52,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:14:52,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:14:52,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:14:52,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:14:52,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:14:52,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:14:52,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:14:52,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:14:52,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:14:52,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:14:52,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:14:52,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:14:52,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:14:52,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:14:52,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:14:52,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:14:52,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:14:52,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:14:52,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:14:52,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:14:52,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:14:52,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:14:52,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:14:52,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:14:52,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:14:52,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:14:52,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:14:52,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:14:52,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:14:52,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:14:52,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:14:52,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:14:52,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:14:52,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:14:52,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:14:52,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:14:52,698 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:14:52,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:14:52,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:14:52,699 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:14:52,700 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:14:52,700 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:14:52,700 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:14:52,700 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:14:52,701 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:14:52,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:14:52,702 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:14:52,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:14:52,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:14:52,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:14:52,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:14:52,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:14:52,704 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:14:52,704 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:14:52,704 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:14:52,704 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:14:52,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:14:52,705 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:14:52,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:14:52,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:14:52,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:14:52,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:14:52,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:14:52,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:14:52,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:14:52,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:14:52,707 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:14:52,708 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:14:52,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:14:52,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:14:52,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:14:52,709 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_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f [2021-10-24 10:14:53,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:14:53,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:14:53,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:14:53,198 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:14:53,199 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:14:53,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-10-24 10:14:53,280 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/data/5ae249d04/c87a9ad438dd464abd74ced40f6a3a60/FLAG457113ed0 [2021-10-24 10:14:53,957 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:14:53,958 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-10-24 10:14:53,985 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/data/5ae249d04/c87a9ad438dd464abd74ced40f6a3a60/FLAG457113ed0 [2021-10-24 10:14:54,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/data/5ae249d04/c87a9ad438dd464abd74ced40f6a3a60 [2021-10-24 10:14:54,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:14:54,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:14:54,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:14:54,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:14:54,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:14:54,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:14:54" (1/1) ... [2021-10-24 10:14:54,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e02ab99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:54, skipping insertion in model container [2021-10-24 10:14:54,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:14:54" (1/1) ... [2021-10-24 10:14:54,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:14:54,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:14:54,766 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_359ee50e-315a-43cd-b951-dde737f340b9/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2021-10-24 10:14:54,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:14:54,796 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:14:54,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:14:54,950 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_359ee50e-315a-43cd-b951-dde737f340b9/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2021-10-24 10:14:54,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:14:54,964 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:14:55,073 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_359ee50e-315a-43cd-b951-dde737f340b9/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2021-10-24 10:14:55,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:14:55,099 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:14:55,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55 WrapperNode [2021-10-24 10:14:55,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:14:55,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:14:55,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:14:55,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:14:55,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (1/1) ... [2021-10-24 10:14:55,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (1/1) ... [2021-10-24 10:14:55,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:14:55,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:14:55,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:14:55,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:14:55,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (1/1) ... [2021-10-24 10:14:55,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (1/1) ... [2021-10-24 10:14:55,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (1/1) ... [2021-10-24 10:14:55,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (1/1) ... [2021-10-24 10:14:55,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (1/1) ... [2021-10-24 10:14:55,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (1/1) ... [2021-10-24 10:14:55,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (1/1) ... [2021-10-24 10:14:55,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:14:55,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:14:55,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:14:55,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:14:55,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (1/1) ... [2021-10-24 10:14:55,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:14:55,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:14:55,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:14:55,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:14:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:14:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:14:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:14:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:14:58,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:14:58,621 INFO L299 CfgBuilder]: Removed 288 assume(true) statements. [2021-10-24 10:14:58,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:14:58 BoogieIcfgContainer [2021-10-24 10:14:58,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:14:58,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:14:58,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:14:58,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:14:58,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:14:54" (1/3) ... [2021-10-24 10:14:58,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a62024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:14:58, skipping insertion in model container [2021-10-24 10:14:58,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:55" (2/3) ... [2021-10-24 10:14:58,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a62024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:14:58, skipping insertion in model container [2021-10-24 10:14:58,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:14:58" (3/3) ... [2021-10-24 10:14:58,637 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2021-10-24 10:14:58,644 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:14:58,644 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:14:58,720 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:14:58,729 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:14:58,730 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:14:58,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 193 states have (on average 1.5544041450777202) internal successors, (300), 196 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:58,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:14:58,786 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:58,787 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:58,788 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:58,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:58,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1618500051, now seen corresponding path program 1 times [2021-10-24 10:14:58,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:14:58,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281895968] [2021-10-24 10:14:58,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:58,809 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:14:58,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:14:58,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:14:58,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:14:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:59,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:14:59,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:14:59,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:59,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:14:59,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:59,233 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:14:59,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281895968] [2021-10-24 10:14:59,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281895968] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:59,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:14:59,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:14:59,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23699387] [2021-10-24 10:14:59,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:14:59,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:14:59,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:14:59,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:14:59,267 INFO L87 Difference]: Start difference. First operand has 197 states, 193 states have (on average 1.5544041450777202) internal successors, (300), 196 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:59,308 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2021-10-24 10:14:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:14:59,310 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 10:14:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:59,322 INFO L225 Difference]: With dead ends: 388 [2021-10-24 10:14:59,322 INFO L226 Difference]: Without dead ends: 193 [2021-10-24 10:14:59,326 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:14:59,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-10-24 10:14:59,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-10-24 10:14:59,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 190 states have (on average 1.5157894736842106) internal successors, (288), 192 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:59,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2021-10-24 10:14:59,378 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2021-10-24 10:14:59,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:59,378 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2021-10-24 10:14:59,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:59,379 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2021-10-24 10:14:59,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:14:59,381 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:59,381 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:59,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:14:59,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:14:59,589 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:59,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:59,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1765436492, now seen corresponding path program 1 times [2021-10-24 10:14:59,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:14:59,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941611280] [2021-10-24 10:14:59,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:59,606 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:14:59,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:14:59,607 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:14:59,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:14:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:59,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:14:59,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:14:59,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:59,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:00,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:00,010 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:00,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941611280] [2021-10-24 10:15:00,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941611280] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:00,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:00,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:15:00,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110885054] [2021-10-24 10:15:00,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:15:00,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:00,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:15:00,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:00,014 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:00,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:00,039 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2021-10-24 10:15:00,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:00,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 10:15:00,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:00,041 INFO L225 Difference]: With dead ends: 193 [2021-10-24 10:15:00,041 INFO L226 Difference]: Without dead ends: 75 [2021-10-24 10:15:00,043 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:00,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-24 10:15:00,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-10-24 10:15:00,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:00,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2021-10-24 10:15:00,052 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2021-10-24 10:15:00,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:00,052 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-24 10:15:00,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:00,053 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2021-10-24 10:15:00,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:15:00,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:00,054 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:00,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:00,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:00,271 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:00,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:00,277 INFO L82 PathProgramCache]: Analyzing trace with hash 134472408, now seen corresponding path program 1 times [2021-10-24 10:15:00,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:00,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141692937] [2021-10-24 10:15:00,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:00,279 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:00,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:00,286 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:00,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:15:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:00,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:00,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:00,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:00,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:00,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:00,724 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:00,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141692937] [2021-10-24 10:15:00,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141692937] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:00,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:00,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:15:00,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932323028] [2021-10-24 10:15:00,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:15:00,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:00,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:15:00,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:00,728 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:00,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:00,811 INFO L93 Difference]: Finished difference Result 238 states and 358 transitions. [2021-10-24 10:15:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:15:00,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 10:15:00,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:00,814 INFO L225 Difference]: With dead ends: 238 [2021-10-24 10:15:00,814 INFO L226 Difference]: Without dead ends: 169 [2021-10-24 10:15:00,815 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:00,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-10-24 10:15:00,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 96. [2021-10-24 10:15:00,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 95 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:00,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2021-10-24 10:15:00,833 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 24 [2021-10-24 10:15:00,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:00,833 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2021-10-24 10:15:00,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2021-10-24 10:15:00,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:15:00,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:00,836 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:00,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:01,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:01,050 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:01,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:01,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1119046690, now seen corresponding path program 1 times [2021-10-24 10:15:01,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:01,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306092033] [2021-10-24 10:15:01,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:01,052 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:01,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:01,053 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:01,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:15:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:01,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:01,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:01,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:01,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:01,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306092033] [2021-10-24 10:15:01,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306092033] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:01,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:01,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:15:01,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132654964] [2021-10-24 10:15:01,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:01,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:01,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:01,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:01,488 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:01,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:01,602 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2021-10-24 10:15:01,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:01,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 10:15:01,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:01,609 INFO L225 Difference]: With dead ends: 197 [2021-10-24 10:15:01,609 INFO L226 Difference]: Without dead ends: 107 [2021-10-24 10:15:01,612 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:01,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-24 10:15:01,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2021-10-24 10:15:01,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.4423076923076923) internal successors, (150), 104 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:01,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2021-10-24 10:15:01,652 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 27 [2021-10-24 10:15:01,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:01,653 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2021-10-24 10:15:01,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:01,653 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2021-10-24 10:15:01,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:15:01,655 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:01,655 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:01,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:01,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:01,856 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:01,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:01,856 INFO L82 PathProgramCache]: Analyzing trace with hash -428868179, now seen corresponding path program 1 times [2021-10-24 10:15:01,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:01,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504464256] [2021-10-24 10:15:01,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:01,858 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:01,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:01,859 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:01,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:15:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:02,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:15:02,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:02,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:02,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:02,455 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:02,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504464256] [2021-10-24 10:15:02,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504464256] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:02,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:02,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 10:15:02,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052468174] [2021-10-24 10:15:02,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:15:02,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:02,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:15:02,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:15:02,458 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:03,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:03,070 INFO L93 Difference]: Finished difference Result 1171 states and 1714 transitions. [2021-10-24 10:15:03,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 10:15:03,071 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 10:15:03,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:03,079 INFO L225 Difference]: With dead ends: 1171 [2021-10-24 10:15:03,080 INFO L226 Difference]: Without dead ends: 1072 [2021-10-24 10:15:03,082 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 172.9ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 10:15:03,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-24 10:15:03,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 261. [2021-10-24 10:15:03,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.4153846153846155) internal successors, (368), 260 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:03,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 368 transitions. [2021-10-24 10:15:03,137 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 368 transitions. Word has length 27 [2021-10-24 10:15:03,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:03,137 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 368 transitions. [2021-10-24 10:15:03,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:15:03,138 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 368 transitions. [2021-10-24 10:15:03,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:15:03,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:03,140 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:03,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:03,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:03,355 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:03,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:03,355 INFO L82 PathProgramCache]: Analyzing trace with hash -2129131921, now seen corresponding path program 1 times [2021-10-24 10:15:03,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:03,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667626252] [2021-10-24 10:15:03,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:03,357 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:03,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:03,359 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:03,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:15:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:15:04,945 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:15:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:15:06,323 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:15:06,324 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:15:06,324 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:15:06,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:15:06,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:15:06,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:06,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:06,563 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:15:06,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:15:06 BoogieIcfgContainer [2021-10-24 10:15:06,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:15:06,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:15:06,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:15:06,703 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:15:06,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:14:58" (3/4) ... [2021-10-24 10:15:06,709 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:15:06,852 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:15:06,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:15:06,857 INFO L168 Benchmark]: Toolchain (without parser) took 12611.60 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 55.0 MB in the beginning and 64.0 MB in the end (delta: -8.9 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:06,857 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 71.3 MB. Free memory is still 52.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:15:06,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.92 ms. Allocated memory is still 71.3 MB. Free memory was 54.8 MB in the beginning and 41.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:06,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.46 ms. Allocated memory is still 71.3 MB. Free memory was 41.1 MB in the beginning and 36.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:06,859 INFO L168 Benchmark]: Boogie Preprocessor took 134.33 ms. Allocated memory is still 71.3 MB. Free memory was 36.2 MB in the beginning and 32.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:06,860 INFO L168 Benchmark]: RCFGBuilder took 3266.79 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 32.7 MB in the beginning and 72.9 MB in the end (delta: -40.2 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:06,860 INFO L168 Benchmark]: TraceAbstraction took 8075.13 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 30.0 MB in the end (delta: 42.3 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:06,861 INFO L168 Benchmark]: Witness Printer took 150.18 ms. Allocated memory is still 96.5 MB. Free memory was 30.0 MB in the beginning and 64.0 MB in the end (delta: -34.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:06,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 71.3 MB. Free memory is still 52.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 856.92 ms. Allocated memory is still 71.3 MB. Free memory was 54.8 MB in the beginning and 41.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.46 ms. Allocated memory is still 71.3 MB. Free memory was 41.1 MB in the beginning and 36.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 134.33 ms. Allocated memory is still 71.3 MB. Free memory was 36.2 MB in the beginning and 32.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3266.79 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 32.7 MB in the beginning and 72.9 MB in the end (delta: -40.2 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8075.13 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 30.0 MB in the end (delta: 42.3 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. * Witness Printer took 150.18 ms. Allocated memory is still 96.5 MB. Free memory was 30.0 MB in the beginning and 64.0 MB in the end (delta: -34.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1023]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int waterLevel = 1; [L598] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L960] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L962] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L968] tmp = __VERIFIER_nondet_int() [L970] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] COND TRUE waterLevel < 2 [L616] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND FALSE !(\read(tmp___2)) [L996] tmp___1 = __VERIFIER_nondet_int() [L998] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L930] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L937] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L711] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L718] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L636] int retValue_acc ; [L639] retValue_acc = methaneLevelCritical [L640] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L668] int retValue_acc ; [L671] retValue_acc = waterLevel [L672] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L844] int retValue_acc ; [L847] retValue_acc = pumpRunning [L848] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1023] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 1023]: 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: 1023]: 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, 197 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7843.3ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 42.4ms, AutomataDifference: 949.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 744 SDtfs, 1773 SDslu, 1289 SDs, 0 SdLazy, 225 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 364.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 198.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 158.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 886 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 144.7ms SsaConstructionTime, 2126.5ms SatisfiabilityAnalysisTime, 1091.9ms InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 369 SizeOfPredicates, 4 NumberOfNonLiveVariables, 998 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 10:15:06,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359ee50e-315a-43cd-b951-dde737f340b9/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...