./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.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_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/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_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/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_a811c963-4d80-484b-b85f-1583b187fe99/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 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 ............................................................................................................................................ 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_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/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_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/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_a811c963-4d80-484b-b85f-1583b187fe99/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 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:19:34,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:19:34,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:19:34,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:19:34,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:19:34,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:19:34,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:19:34,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:19:34,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:19:34,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:19:34,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:19:34,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:19:34,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:19:34,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:19:34,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:19:34,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:19:34,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:19:34,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:19:34,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:19:34,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:19:34,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:19:34,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:19:34,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:19:34,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:19:34,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:19:34,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:19:34,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:19:34,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:19:34,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:19:34,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:19:34,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:19:34,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:19:34,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:19:34,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:19:34,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:19:34,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:19:34,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:19:34,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:19:34,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:19:34,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:19:34,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:19:34,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:19:34,358 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:19:34,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:19:34,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:19:34,363 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:19:34,364 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:19:34,364 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:19:34,364 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:19:34,364 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:19:34,364 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:19:34,365 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:19:34,372 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:19:34,372 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:19:34,373 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:19:34,373 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:19:34,373 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:19:34,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:19:34,374 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:19:34,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:19:34,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:19:34,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:19:34,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:19:34,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:19:34,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:19:34,376 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:19:34,376 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:19:34,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:19:34,376 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:19:34,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:19:34,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:19:34,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:19:34,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:19:34,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:19:34,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:19:34,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:19:34,380 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:19:34,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:19:34,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:19:34,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:19:34,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:19:34,381 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_a811c963-4d80-484b-b85f-1583b187fe99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 [2021-10-24 10:19:34,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:19:34,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:19:34,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:19:34,696 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:19:34,697 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:19:34,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2021-10-24 10:19:34,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/data/7ec6d0a4a/8dd1f6f7986c49199c14aaa30e306a5e/FLAG31f748be5 [2021-10-24 10:19:35,478 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:19:35,479 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2021-10-24 10:19:35,500 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/data/7ec6d0a4a/8dd1f6f7986c49199c14aaa30e306a5e/FLAG31f748be5 [2021-10-24 10:19:35,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/data/7ec6d0a4a/8dd1f6f7986c49199c14aaa30e306a5e [2021-10-24 10:19:35,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:19:35,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:19:35,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:19:35,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:19:35,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:19:35,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:19:35" (1/1) ... [2021-10-24 10:19:35,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554bfb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:35, skipping insertion in model container [2021-10-24 10:19:35,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:19:35" (1/1) ... [2021-10-24 10:19:35,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:19:35,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:19:36,056 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_a811c963-4d80-484b-b85f-1583b187fe99/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2021-10-24 10:19:36,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:19:36,141 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 10:19:36,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b4a1163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:36, skipping insertion in model container [2021-10-24 10:19:36,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:19:36,142 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:19:36,144 INFO L168 Benchmark]: Toolchain (without parser) took 388.60 ms. Allocated memory is still 113.2 MB. Free memory was 75.8 MB in the beginning and 83.4 MB in the end (delta: -7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:19:36,146 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory was 83.0 MB in the beginning and 82.9 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:19:36,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.75 ms. Allocated memory is still 113.2 MB. Free memory was 75.4 MB in the beginning and 83.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:19:36,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory was 83.0 MB in the beginning and 82.9 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 374.75 ms. Allocated memory is still 113.2 MB. Free memory was 75.4 MB in the beginning and 83.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 361]: 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 10:19:38,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:19:38,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:19:38,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:19:38,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:19:38,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:19:38,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:19:38,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:19:38,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:19:38,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:19:38,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:19:38,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:19:38,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:19:38,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:19:38,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:19:38,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:19:38,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:19:38,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:19:38,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:19:38,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:19:38,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:19:38,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:19:38,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:19:38,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:19:38,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:19:38,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:19:38,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:19:38,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:19:38,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:19:38,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:19:38,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:19:38,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:19:38,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:19:38,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:19:38,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:19:38,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:19:38,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:19:38,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:19:38,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:19:38,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:19:38,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:19:38,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:19:38,682 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:19:38,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:19:38,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:19:38,684 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:19:38,684 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:19:38,685 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:19:38,685 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:19:38,685 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:19:38,685 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:19:38,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:19:38,688 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:19:38,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:19:38,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:19:38,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:19:38,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:19:38,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:19:38,690 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:19:38,690 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:19:38,690 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:19:38,691 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:19:38,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:19:38,691 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:19:38,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:19:38,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:19:38,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:19:38,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:19:38,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:19:38,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:19:38,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:19:38,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:19:38,693 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:19:38,693 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:19:38,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:19:38,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:19:38,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:19:38,695 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_a811c963-4d80-484b-b85f-1583b187fe99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 [2021-10-24 10:19:39,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:19:39,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:19:39,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:19:39,105 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:19:39,106 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:19:39,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2021-10-24 10:19:39,189 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/data/ee85af00d/624b874536c249d19106bebfba0a2a8a/FLAG6a146a7cc [2021-10-24 10:19:39,865 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:19:39,866 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2021-10-24 10:19:39,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/data/ee85af00d/624b874536c249d19106bebfba0a2a8a/FLAG6a146a7cc [2021-10-24 10:19:40,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/data/ee85af00d/624b874536c249d19106bebfba0a2a8a [2021-10-24 10:19:40,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:19:40,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:19:40,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:19:40,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:19:40,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:19:40,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc0bafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40, skipping insertion in model container [2021-10-24 10:19:40,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:19:40,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:19:40,478 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_a811c963-4d80-484b-b85f-1583b187fe99/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2021-10-24 10:19:40,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:19:40,590 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:19:40,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:19:40,649 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_a811c963-4d80-484b-b85f-1583b187fe99/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2021-10-24 10:19:40,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:19:40,694 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:19:40,719 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_a811c963-4d80-484b-b85f-1583b187fe99/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2021-10-24 10:19:40,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:19:40,807 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:19:40,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40 WrapperNode [2021-10-24 10:19:40,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:19:40,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:19:40,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:19:40,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:19:40,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:19:40,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:19:40,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:19:40,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:19:40,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:40,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:19:40,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:19:40,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:19:40,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:19:40,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (1/1) ... [2021-10-24 10:19:41,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:19:41,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:19:41,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:19:41,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:19:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:19:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:19:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:19:41,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:19:43,239 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:19:43,239 INFO L299 CfgBuilder]: Removed 126 assume(true) statements. [2021-10-24 10:19:43,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:19:43 BoogieIcfgContainer [2021-10-24 10:19:43,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:19:43,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:19:43,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:19:43,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:19:43,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:19:40" (1/3) ... [2021-10-24 10:19:43,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b27685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:19:43, skipping insertion in model container [2021-10-24 10:19:43,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:19:40" (2/3) ... [2021-10-24 10:19:43,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b27685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:19:43, skipping insertion in model container [2021-10-24 10:19:43,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:19:43" (3/3) ... [2021-10-24 10:19:43,251 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2021-10-24 10:19:43,256 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:19:43,257 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:19:43,306 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:19:43,312 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 10:19:43,313 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:19:43,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 91 states have (on average 1.5494505494505495) internal successors, (141), 94 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:19:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:19:43,335 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:19:43,336 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 10:19:43,337 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 10:19:43,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:19:43,343 INFO L82 PathProgramCache]: Analyzing trace with hash -415609573, now seen corresponding path program 1 times [2021-10-24 10:19:43,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:19:43,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464930604] [2021-10-24 10:19:43,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:19:43,358 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:19:43,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:19:43,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:19:43,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:19:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:19:43,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:19:43,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:19:43,758 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 10:19:43,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:19:43,837 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 10:19:43,838 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:19:43,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464930604] [2021-10-24 10:19:43,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464930604] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:19:43,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:19:43,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:19:43,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611902436] [2021-10-24 10:19:43,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:19:43,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:19:43,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:19:43,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:19:43,869 INFO L87 Difference]: Start difference. First operand has 95 states, 91 states have (on average 1.5494505494505495) internal successors, (141), 94 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) 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 10:19:43,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:19:43,896 INFO L93 Difference]: Finished difference Result 184 states and 275 transitions. [2021-10-24 10:19:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:19:43,897 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 10:19:43,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:19:43,907 INFO L225 Difference]: With dead ends: 184 [2021-10-24 10:19:43,908 INFO L226 Difference]: Without dead ends: 91 [2021-10-24 10:19:43,911 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:19:43,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-24 10:19:43,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-10-24 10:19:43,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.4659090909090908) internal successors, (129), 90 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:19:43,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2021-10-24 10:19:43,951 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 18 [2021-10-24 10:19:43,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:19:43,952 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2021-10-24 10:19:43,952 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 10:19:43,952 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2021-10-24 10:19:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:19:43,953 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:19:43,954 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:19:43,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:19:44,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:19:44,166 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 10:19:44,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:19:44,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1326640326, now seen corresponding path program 1 times [2021-10-24 10:19:44,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:19:44,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601272867] [2021-10-24 10:19:44,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:19:44,169 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:19:44,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:19:44,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:19:44,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:19:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:19:44,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:19:44,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:19:44,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:19:44,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:19:44,517 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 10:19:44,517 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:19:44,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601272867] [2021-10-24 10:19:44,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601272867] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:19:44,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:19:44,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:19:44,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205890238] [2021-10-24 10:19:44,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:19:44,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:19:44,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:19:44,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:19:44,522 INFO L87 Difference]: Start difference. First operand 91 states and 129 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 10:19:44,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:19:44,553 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-10-24 10:19:44,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:19:44,553 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 10:19:44,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:19:44,555 INFO L225 Difference]: With dead ends: 91 [2021-10-24 10:19:44,555 INFO L226 Difference]: Without dead ends: 41 [2021-10-24 10:19:44,556 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:19:44,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-24 10:19:44,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-24 10:19:44,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.45) internal successors, (58), 40 states have internal predecessors, (58), 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 10:19:44,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2021-10-24 10:19:44,572 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2021-10-24 10:19:44,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:19:44,573 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2021-10-24 10:19:44,573 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 10:19:44,573 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2021-10-24 10:19:44,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:19:44,574 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:19:44,574 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 10:19:44,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:19:44,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:19:44,775 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 10:19:44,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:19:44,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1440289089, now seen corresponding path program 1 times [2021-10-24 10:19:44,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:19:44,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18708341] [2021-10-24 10:19:44,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:19:44,777 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:19:44,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:19:44,778 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:19:44,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:19:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:19:44,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:19:44,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:19:45,044 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 10:19:45,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:19:45,118 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 10:19:45,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:19:45,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18708341] [2021-10-24 10:19:45,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18708341] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:19:45,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:19:45,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:19:45,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318323316] [2021-10-24 10:19:45,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:19:45,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:19:45,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:19:45,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:19:45,127 INFO L87 Difference]: Start difference. First operand 41 states and 58 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 10:19:45,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:19:45,179 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2021-10-24 10:19:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:19:45,180 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 10:19:45,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:19:45,182 INFO L225 Difference]: With dead ends: 136 [2021-10-24 10:19:45,182 INFO L226 Difference]: Without dead ends: 101 [2021-10-24 10:19:45,183 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:19:45,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-24 10:19:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 62. [2021-10-24 10:19:45,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 61 states have internal predecessors, (90), 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 10:19:45,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2021-10-24 10:19:45,193 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 24 [2021-10-24 10:19:45,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:19:45,193 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2021-10-24 10:19:45,193 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 10:19:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2021-10-24 10:19:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 10:19:45,195 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:19:45,195 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:19:45,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:19:45,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:19:45,411 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 10:19:45,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:19:45,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1072133948, now seen corresponding path program 1 times [2021-10-24 10:19:45,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:19:45,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508150053] [2021-10-24 10:19:45,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:19:45,413 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:19:45,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:19:45,419 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:19:45,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:19:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:19:45,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:19:45,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:19:45,703 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 10:19:45,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:19:45,753 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 10:19:45,754 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:19:45,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508150053] [2021-10-24 10:19:45,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508150053] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:19:45,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:19:45,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:19:45,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961000916] [2021-10-24 10:19:45,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:19:45,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:19:45,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:19:45,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:19:45,758 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:19:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:19:45,833 INFO L93 Difference]: Finished difference Result 141 states and 207 transitions. [2021-10-24 10:19:45,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:19:45,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-24 10:19:45,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:19:45,837 INFO L225 Difference]: With dead ends: 141 [2021-10-24 10:19:45,837 INFO L226 Difference]: Without dead ends: 85 [2021-10-24 10:19:45,838 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:19:45,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-10-24 10:19:45,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2021-10-24 10:19:45,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.4390243902439024) internal successors, (118), 82 states have internal predecessors, (118), 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 10:19:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 118 transitions. [2021-10-24 10:19:45,857 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 118 transitions. Word has length 25 [2021-10-24 10:19:45,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:19:45,858 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 118 transitions. [2021-10-24 10:19:45,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:19:45,858 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2021-10-24 10:19:45,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:19:45,869 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:19:45,870 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 10:19:45,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:19:46,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:19:46,083 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 10:19:46,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:19:46,083 INFO L82 PathProgramCache]: Analyzing trace with hash -2003629676, now seen corresponding path program 1 times [2021-10-24 10:19:46,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:19:46,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443359417] [2021-10-24 10:19:46,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:19:46,084 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:19:46,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:19:46,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:19:46,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:19:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:19:46,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:19:46,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:19:46,469 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 10:19:46,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:19:46,613 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 10:19:46,613 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:19:46,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443359417] [2021-10-24 10:19:46,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443359417] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:19:46,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:19:46,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 10:19:46,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112651689] [2021-10-24 10:19:46,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:19:46,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:19:46,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:19:46,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:19:46,616 INFO L87 Difference]: Start difference. First operand 83 states and 118 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 10:19:47,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:19:47,039 INFO L93 Difference]: Finished difference Result 888 states and 1304 transitions. [2021-10-24 10:19:47,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 10:19:47,041 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 10:19:47,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:19:47,047 INFO L225 Difference]: With dead ends: 888 [2021-10-24 10:19:47,047 INFO L226 Difference]: Without dead ends: 811 [2021-10-24 10:19:47,051 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 10:19:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2021-10-24 10:19:47,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 218. [2021-10-24 10:19:47,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.4101382488479262) internal successors, (306), 217 states have internal predecessors, (306), 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 10:19:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 306 transitions. [2021-10-24 10:19:47,128 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 306 transitions. Word has length 27 [2021-10-24 10:19:47,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:19:47,128 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 306 transitions. [2021-10-24 10:19:47,129 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 10:19:47,129 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 306 transitions. [2021-10-24 10:19:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:19:47,132 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:19:47,132 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 10:19:47,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:19:47,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:19:47,349 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 10:19:47,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:19:47,350 INFO L82 PathProgramCache]: Analyzing trace with hash 591073878, now seen corresponding path program 1 times [2021-10-24 10:19:47,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:19:47,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896676555] [2021-10-24 10:19:47,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:19:47,351 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:19:47,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:19:47,352 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:19:47,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:19:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:19:48,250 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:19:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:19:49,395 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:19:49,395 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:19:49,396 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:19:49,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:19:49,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:19:49,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-24 10:19:49,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:19:49,641 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:19:49,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:19:49 BoogieIcfgContainer [2021-10-24 10:19:49,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:19:49,816 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:19:49,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:19:49,817 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:19:49,817 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:19:43" (3/4) ... [2021-10-24 10:19:49,819 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:19:49,912 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:19:49,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:19:49,923 INFO L168 Benchmark]: Toolchain (without parser) took 9760.36 ms. Allocated memory was 73.4 MB in the beginning and 107.0 MB in the end (delta: 33.6 MB). Free memory was 54.4 MB in the beginning and 71.2 MB in the end (delta: -16.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:19:49,925 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 73.4 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:19:49,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.85 ms. Allocated memory is still 73.4 MB. Free memory was 54.0 MB in the beginning and 40.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:19:49,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.03 ms. Allocated memory is still 73.4 MB. Free memory was 40.7 MB in the beginning and 37.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:19:49,926 INFO L168 Benchmark]: Boogie Preprocessor took 71.27 ms. Allocated memory is still 73.4 MB. Free memory was 37.4 MB in the beginning and 35.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:19:49,927 INFO L168 Benchmark]: RCFGBuilder took 2250.59 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 35.0 MB in the beginning and 44.4 MB in the end (delta: -9.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:19:49,927 INFO L168 Benchmark]: TraceAbstraction took 6572.00 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 43.8 MB in the beginning and 82.8 MB in the end (delta: -39.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:19:49,927 INFO L168 Benchmark]: Witness Printer took 105.05 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 71.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:19:49,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 73.4 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 645.85 ms. Allocated memory is still 73.4 MB. Free memory was 54.0 MB in the beginning and 40.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.03 ms. Allocated memory is still 73.4 MB. Free memory was 40.7 MB in the beginning and 37.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.27 ms. Allocated memory is still 73.4 MB. Free memory was 37.4 MB in the beginning and 35.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2250.59 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 35.0 MB in the beginning and 44.4 MB in the end (delta: -9.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6572.00 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 43.8 MB in the beginning and 82.8 MB in the end (delta: -39.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * Witness Printer took 105.05 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 71.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 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: 328]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L502] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L703] int pumpRunning = 0; [L704] 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] [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] 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] [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L908] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L914] tmp = __VERIFIER_nondet_int() [L916] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L213] COND TRUE waterLevel < 2 [L214] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L924] tmp___0 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND FALSE !(\read(tmp___2)) [L942] tmp___1 = __VERIFIER_nondet_int() [L944] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L876] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L883] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L710] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L717] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; [L234] int retValue_acc ; [L237] retValue_acc = methaneLevelCritical [L238] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L171] tmp___0 = getWaterLevel() [L173] COND TRUE tmp___0 == 2 [L809] int retValue_acc ; [L812] retValue_acc = pumpRunning [L813] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L175] tmp___1 = isPumpRunning() [L177] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L328] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 328]: 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: 328]: 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, 95 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6335.2ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 28.3ms, AutomataDifference: 676.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 396 SDtfs, 820 SDslu, 821 SDs, 0 SdLazy, 141 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 217.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 169.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred 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: 145.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 634 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 139.8ms SsaConstructionTime, 1397.4ms SatisfiabilityAnalysisTime, 937.1ms InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 357 SizeOfPredicates, 4 NumberOfNonLiveVariables, 996 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 10:19:49,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a811c963-4d80-484b-b85f-1583b187fe99/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...