./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH --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 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:48:08,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:48:08,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:48:08,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:48:08,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:48:08,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:48:08,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:48:08,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:48:08,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:48:08,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:48:08,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:48:08,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:48:08,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:48:08,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:48:08,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:48:08,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:48:08,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:48:08,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:48:08,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:48:08,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:48:08,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:48:08,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:48:08,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:48:08,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:48:08,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:48:08,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:48:08,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:48:08,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:48:08,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:48:08,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:48:08,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:48:08,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:48:08,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:48:08,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:48:08,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:48:08,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:48:08,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:48:08,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:48:08,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:48:08,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:48:08,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:48:08,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:48:08,401 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:48:08,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:48:08,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:48:08,403 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:48:08,403 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:48:08,403 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:48:08,403 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:48:08,403 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:48:08,404 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:48:08,404 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:48:08,404 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:48:08,404 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:48:08,404 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:48:08,405 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:48:08,405 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:48:08,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:48:08,406 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:48:08,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:48:08,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:48:08,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:48:08,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:48:08,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:48:08,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:48:08,407 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:48:08,407 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:48:08,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:48:08,407 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:48:08,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:48:08,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:48:08,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:48:08,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:48:08,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:48:08,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:48:08,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:48:08,409 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:48:08,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:48:08,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:48:08,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:48:08,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:48:08,410 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_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 [2021-11-03 05:48:08,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:48:08,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:48:08,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:48:08,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:48:08,675 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:48:08,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2021-11-03 05:48:08,742 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/data/40281c731/80a84d3e35b44387986391d495897433/FLAG0ff610430 [2021-11-03 05:48:09,409 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:48:09,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2021-11-03 05:48:09,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/data/40281c731/80a84d3e35b44387986391d495897433/FLAG0ff610430 [2021-11-03 05:48:09,693 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/data/40281c731/80a84d3e35b44387986391d495897433 [2021-11-03 05:48:09,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:48:09,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:48:09,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:48:09,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:48:09,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:48:09,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:48:09" (1/1) ... [2021-11-03 05:48:09,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47320066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:09, skipping insertion in model container [2021-11-03 05:48:09,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:48:09" (1/1) ... [2021-11-03 05:48:09,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:48:09,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:48:10,097 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_9940ed35-622b-443c-9fdf-8549a19616f1/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2021-11-03 05:48:10,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:48:10,437 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) [2021-11-03 05:48:10,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@59d5f77e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:10, skipping insertion in model container [2021-11-03 05:48:10,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:48:10,438 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:48:10,454 INFO L168 Benchmark]: Toolchain (without parser) took 753.56 ms. Allocated memory is still 140.5 MB. Free memory was 109.2 MB in the beginning and 80.6 MB in the end (delta: 28.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-11-03 05:48:10,454 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:48:10,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.39 ms. Allocated memory is still 140.5 MB. Free memory was 109.0 MB in the beginning and 80.6 MB in the end (delta: 28.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-11-03 05:48:10,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 732.39 ms. Allocated memory is still 140.5 MB. Free memory was 109.0 MB in the beginning and 80.6 MB in the end (delta: 28.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3126]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH --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 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:48:12,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:48:12,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:48:12,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:48:12,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:48:12,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:48:12,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:48:12,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:48:12,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:48:12,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:48:12,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:48:12,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:48:12,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:48:12,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:48:12,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:48:12,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:48:12,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:48:12,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:48:12,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:48:12,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:48:12,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:48:12,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:48:12,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:48:12,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:48:12,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:48:12,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:48:12,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:48:12,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:48:12,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:48:12,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:48:12,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:48:12,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:48:12,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:48:12,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:48:12,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:48:12,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:48:12,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:48:12,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:48:12,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:48:12,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:48:12,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:48:12,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:48:12,762 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:48:12,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:48:12,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:48:12,764 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:48:12,764 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:48:12,765 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:48:12,765 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:48:12,765 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:48:12,766 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:48:12,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:48:12,768 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:48:12,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:48:12,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:48:12,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:48:12,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:48:12,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:48:12,770 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:48:12,770 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:48:12,770 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:48:12,770 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:48:12,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:48:12,771 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:48:12,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:48:12,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:48:12,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:48:12,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:48:12,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:48:12,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:48:12,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:48:12,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:48:12,773 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:48:12,773 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:48:12,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:48:12,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:48:12,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:48:12,775 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_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 [2021-11-03 05:48:13,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:48:13,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:48:13,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:48:13,173 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:48:13,174 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:48:13,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2021-11-03 05:48:13,242 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/data/159fc2c5d/c292254a76094308b20e76728e862fdd/FLAG49da60e48 [2021-11-03 05:48:13,901 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:48:13,902 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2021-11-03 05:48:13,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/data/159fc2c5d/c292254a76094308b20e76728e862fdd/FLAG49da60e48 [2021-11-03 05:48:14,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/data/159fc2c5d/c292254a76094308b20e76728e862fdd [2021-11-03 05:48:14,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:48:14,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:48:14,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:48:14,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:48:14,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:48:14,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:48:14" (1/1) ... [2021-11-03 05:48:14,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54a58e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:14, skipping insertion in model container [2021-11-03 05:48:14,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:48:14" (1/1) ... [2021-11-03 05:48:14,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:48:14,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:48:14,638 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_9940ed35-622b-443c-9fdf-8549a19616f1/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2021-11-03 05:48:14,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:48:14,911 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:48:14,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:48:14,955 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_9940ed35-622b-443c-9fdf-8549a19616f1/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2021-11-03 05:48:15,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:48:15,073 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:48:15,100 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_9940ed35-622b-443c-9fdf-8549a19616f1/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2021-11-03 05:48:15,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:48:15,223 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:48:15,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15 WrapperNode [2021-11-03 05:48:15,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:48:15,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:48:15,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:48:15,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:48:15,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (1/1) ... [2021-11-03 05:48:15,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (1/1) ... [2021-11-03 05:48:21,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:48:21,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:48:21,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:48:21,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:48:21,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (1/1) ... [2021-11-03 05:48:21,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (1/1) ... [2021-11-03 05:48:21,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (1/1) ... [2021-11-03 05:48:21,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (1/1) ... [2021-11-03 05:48:24,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (1/1) ... [2021-11-03 05:48:24,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (1/1) ... [2021-11-03 05:48:24,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (1/1) ... [2021-11-03 05:48:25,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:48:25,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:48:25,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:48:25,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:48:25,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (1/1) ... [2021-11-03 05:48:25,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:48:25,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:48:25,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:48:25,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:48:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-03 05:48:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:48:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:48:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:48:25,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:49:24,264 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:49:24,265 INFO L299 CfgBuilder]: Removed 37403 assume(true) statements. [2021-11-03 05:49:24,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:49:24 BoogieIcfgContainer [2021-11-03 05:49:24,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:49:24,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:49:24,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:49:24,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:49:24,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:48:14" (1/3) ... [2021-11-03 05:49:24,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5198fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:49:24, skipping insertion in model container [2021-11-03 05:49:24,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:48:15" (2/3) ... [2021-11-03 05:49:24,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5198fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:49:24, skipping insertion in model container [2021-11-03 05:49:24,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:49:24" (3/3) ... [2021-11-03 05:49:24,310 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_productSimulator.cil.c [2021-11-03 05:49:24,315 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:49:24,315 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 128 error locations. [2021-11-03 05:49:24,457 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:49:24,462 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 [2021-11-03 05:49:24,463 INFO L340 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2021-11-03 05:49:25,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 36116 states, 35987 states have (on average 1.6031066774112874) internal successors, (57691), 36115 states have internal predecessors, (57691), 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) [2021-11-03 05:49:25,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 05:49:25,142 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:49:25,143 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-11-03 05:49:25,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 05:49:25,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:49:25,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1844169582, now seen corresponding path program 1 times [2021-11-03 05:49:25,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:49:25,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160902963] [2021-11-03 05:49:25,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:25,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:49:25,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:49:25,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:49:25,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:49:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:25,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:49:25,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:25,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:26,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:26,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:49:26,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160902963] [2021-11-03 05:49:26,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160902963] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:49:26,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:49:26,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:49:26,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392919285] [2021-11-03 05:49:26,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:49:26,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:49:26,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:49:26,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:49:26,112 INFO L87 Difference]: Start difference. First operand has 36116 states, 35987 states have (on average 1.6031066774112874) internal successors, (57691), 36115 states have internal predecessors, (57691), 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 29.0) internal successors, (58), 2 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) [2021-11-03 05:49:27,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:49:27,202 INFO L93 Difference]: Finished difference Result 71897 states and 114770 transitions. [2021-11-03 05:49:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:49:27,204 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 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) Word has length 58 [2021-11-03 05:49:27,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:49:27,773 INFO L225 Difference]: With dead ends: 71897 [2021-11-03 05:49:27,773 INFO L226 Difference]: Without dead ends: 25936 [2021-11-03 05:49:27,900 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:49:28,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25936 states. [2021-11-03 05:49:28,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25936 to 25936. [2021-11-03 05:49:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25936 states, 25808 states have (on average 1.6033787972721636) internal successors, (41380), 25935 states have internal predecessors, (41380), 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) [2021-11-03 05:49:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25936 states to 25936 states and 41380 transitions. [2021-11-03 05:49:28,832 INFO L78 Accepts]: Start accepts. Automaton has 25936 states and 41380 transitions. Word has length 58 [2021-11-03 05:49:28,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:49:28,833 INFO L470 AbstractCegarLoop]: Abstraction has 25936 states and 41380 transitions. [2021-11-03 05:49:28,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 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) [2021-11-03 05:49:28,834 INFO L276 IsEmpty]: Start isEmpty. Operand 25936 states and 41380 transitions. [2021-11-03 05:49:28,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 05:49:28,839 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:49:28,839 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-11-03 05:49:28,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:29,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:49:29,055 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 05:49:29,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:49:29,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1829635949, now seen corresponding path program 1 times [2021-11-03 05:49:29,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:49:29,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288813217] [2021-11-03 05:49:29,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:29,062 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:49:29,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:49:29,063 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:49:29,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:49:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:29,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:49:29,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:29,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:29,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:29,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:29,879 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:49:29,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288813217] [2021-11-03 05:49:29,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288813217] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:49:29,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:49:29,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:49:29,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120349379] [2021-11-03 05:49:29,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:49:29,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:49:29,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:49:29,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:49:29,888 INFO L87 Difference]: Start difference. First operand 25936 states and 41380 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2021-11-03 05:49:31,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:49:31,177 INFO L93 Difference]: Finished difference Result 51847 states and 82722 transitions. [2021-11-03 05:49:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:49:31,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2021-11-03 05:49:31,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:49:31,255 INFO L225 Difference]: With dead ends: 51847 [2021-11-03 05:49:31,255 INFO L226 Difference]: Without dead ends: 25936 [2021-11-03 05:49:31,302 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:49:31,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25936 states. [2021-11-03 05:49:31,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25936 to 25936. [2021-11-03 05:49:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25936 states, 25808 states have (on average 1.6031075635461873) internal successors, (41373), 25935 states have internal predecessors, (41373), 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) [2021-11-03 05:49:31,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25936 states to 25936 states and 41373 transitions. [2021-11-03 05:49:31,967 INFO L78 Accepts]: Start accepts. Automaton has 25936 states and 41373 transitions. Word has length 59 [2021-11-03 05:49:31,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:49:31,967 INFO L470 AbstractCegarLoop]: Abstraction has 25936 states and 41373 transitions. [2021-11-03 05:49:31,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2021-11-03 05:49:31,968 INFO L276 IsEmpty]: Start isEmpty. Operand 25936 states and 41373 transitions. [2021-11-03 05:49:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 05:49:31,972 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:49:31,972 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:49:31,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:32,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:49:32,187 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 05:49:32,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:49:32,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1015319103, now seen corresponding path program 1 times [2021-11-03 05:49:32,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:49:32,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072598054] [2021-11-03 05:49:32,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:32,190 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:49:32,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:49:32,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:49:32,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:49:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:32,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:49:32,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:32,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:33,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:33,298 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:49:33,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072598054] [2021-11-03 05:49:33,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072598054] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:49:33,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:49:33,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 05:49:33,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400026835] [2021-11-03 05:49:33,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:49:33,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:49:33,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:49:33,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:49:33,301 INFO L87 Difference]: Start difference. First operand 25936 states and 41373 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:49:37,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:49:37,148 INFO L93 Difference]: Finished difference Result 103591 states and 165258 transitions. [2021-11-03 05:49:37,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 05:49:37,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-03 05:49:37,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:49:37,375 INFO L225 Difference]: With dead ends: 103591 [2021-11-03 05:49:37,375 INFO L226 Difference]: Without dead ends: 77700 [2021-11-03 05:49:37,435 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:49:37,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77700 states. [2021-11-03 05:49:39,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77700 to 25934. [2021-11-03 05:49:39,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25934 states, 25806 states have (on average 1.6029218011315198) internal successors, (41365), 25933 states have internal predecessors, (41365), 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) [2021-11-03 05:49:39,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25934 states to 25934 states and 41365 transitions. [2021-11-03 05:49:39,138 INFO L78 Accepts]: Start accepts. Automaton has 25934 states and 41365 transitions. Word has length 64 [2021-11-03 05:49:39,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:49:39,138 INFO L470 AbstractCegarLoop]: Abstraction has 25934 states and 41365 transitions. [2021-11-03 05:49:39,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:49:39,140 INFO L276 IsEmpty]: Start isEmpty. Operand 25934 states and 41365 transitions. [2021-11-03 05:49:39,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 05:49:39,145 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:49:39,145 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:49:39,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:39,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:49:39,364 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 05:49:39,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:49:39,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1539786519, now seen corresponding path program 1 times [2021-11-03 05:49:39,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:49:39,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188292851] [2021-11-03 05:49:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:39,367 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:49:39,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:49:39,368 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:49:39,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:49:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:39,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:49:39,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:40,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:40,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:40,225 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:49:40,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188292851] [2021-11-03 05:49:40,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188292851] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:49:40,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:49:40,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 05:49:40,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426263753] [2021-11-03 05:49:40,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:49:40,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:49:40,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:49:40,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:49:40,227 INFO L87 Difference]: Start difference. First operand 25934 states and 41365 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:49:41,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:49:41,874 INFO L93 Difference]: Finished difference Result 51823 states and 82666 transitions. [2021-11-03 05:49:41,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:49:41,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-03 05:49:41,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:49:41,996 INFO L225 Difference]: With dead ends: 51823 [2021-11-03 05:49:41,996 INFO L226 Difference]: Without dead ends: 25946 [2021-11-03 05:49:42,020 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:49:42,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2021-11-03 05:49:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25934. [2021-11-03 05:49:43,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25934 states, 25806 states have (on average 1.6026892970626987) internal successors, (41359), 25933 states have internal predecessors, (41359), 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) [2021-11-03 05:49:43,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25934 states to 25934 states and 41359 transitions. [2021-11-03 05:49:43,192 INFO L78 Accepts]: Start accepts. Automaton has 25934 states and 41359 transitions. Word has length 65 [2021-11-03 05:49:43,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:49:43,193 INFO L470 AbstractCegarLoop]: Abstraction has 25934 states and 41359 transitions. [2021-11-03 05:49:43,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:49:43,193 INFO L276 IsEmpty]: Start isEmpty. Operand 25934 states and 41359 transitions. [2021-11-03 05:49:43,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 05:49:43,198 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:49:43,198 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:49:43,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 05:49:43,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:49:43,412 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 05:49:43,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:49:43,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1603062428, now seen corresponding path program 1 times [2021-11-03 05:49:43,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:49:43,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86841588] [2021-11-03 05:49:43,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:43,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:49:43,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:49:43,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:49:43,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:49:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:43,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:49:43,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:44,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:44,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:44,255 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:49:44,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86841588] [2021-11-03 05:49:44,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86841588] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:49:44,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:49:44,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:49:44,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576916256] [2021-11-03 05:49:44,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:49:44,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:49:44,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:49:44,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:49:44,258 INFO L87 Difference]: Start difference. First operand 25934 states and 41359 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-11-03 05:49:46,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:49:46,092 INFO L93 Difference]: Finished difference Result 77408 states and 123405 transitions. [2021-11-03 05:49:46,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:49:46,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 67 [2021-11-03 05:49:46,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:49:46,186 INFO L225 Difference]: With dead ends: 77408 [2021-11-03 05:49:46,187 INFO L226 Difference]: Without dead ends: 51807 [2021-11-03 05:49:46,213 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:49:46,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51807 states. [2021-11-03 05:49:47,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51807 to 26206. [2021-11-03 05:49:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26206 states, 26078 states have (on average 1.6052227931589846) internal successors, (41861), 26205 states have internal predecessors, (41861), 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) [2021-11-03 05:49:47,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26206 states to 26206 states and 41861 transitions. [2021-11-03 05:49:47,731 INFO L78 Accepts]: Start accepts. Automaton has 26206 states and 41861 transitions. Word has length 67 [2021-11-03 05:49:47,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:49:47,731 INFO L470 AbstractCegarLoop]: Abstraction has 26206 states and 41861 transitions. [2021-11-03 05:49:47,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-11-03 05:49:47,732 INFO L276 IsEmpty]: Start isEmpty. Operand 26206 states and 41861 transitions. [2021-11-03 05:49:47,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 05:49:47,737 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:49:47,737 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:49:47,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:47,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:49:47,955 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 05:49:47,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:49:47,956 INFO L85 PathProgramCache]: Analyzing trace with hash 795493167, now seen corresponding path program 1 times [2021-11-03 05:49:47,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:49:47,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463115421] [2021-11-03 05:49:47,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:47,957 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:49:47,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:49:47,958 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:49:47,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:49:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:48,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:49:48,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:48,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:48,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:49,023 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:49:49,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463115421] [2021-11-03 05:49:49,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463115421] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:49:49,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:49:49,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:49:49,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628999621] [2021-11-03 05:49:49,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:49:49,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:49:49,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:49:49,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:49:49,026 INFO L87 Difference]: Start difference. First operand 26206 states and 41861 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-03 05:49:51,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:49:51,003 INFO L93 Difference]: Finished difference Result 78112 states and 124708 transitions. [2021-11-03 05:49:51,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:49:51,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-03 05:49:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:49:51,104 INFO L225 Difference]: With dead ends: 78112 [2021-11-03 05:49:51,104 INFO L226 Difference]: Without dead ends: 52026 [2021-11-03 05:49:51,132 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:49:51,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52026 states. [2021-11-03 05:49:52,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52026 to 26425. [2021-11-03 05:49:52,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26425 states, 26297 states have (on average 1.6071795261816937) internal successors, (42264), 26424 states have internal predecessors, (42264), 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) [2021-11-03 05:49:52,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26425 states to 26425 states and 42264 transitions. [2021-11-03 05:49:52,846 INFO L78 Accepts]: Start accepts. Automaton has 26425 states and 42264 transitions. Word has length 79 [2021-11-03 05:49:52,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:49:52,847 INFO L470 AbstractCegarLoop]: Abstraction has 26425 states and 42264 transitions. [2021-11-03 05:49:52,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-03 05:49:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 26425 states and 42264 transitions. [2021-11-03 05:49:52,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-03 05:49:52,865 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:49:52,865 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:49:52,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:53,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:49:53,086 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 05:49:53,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:49:53,087 INFO L85 PathProgramCache]: Analyzing trace with hash 582695130, now seen corresponding path program 1 times [2021-11-03 05:49:53,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:49:53,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474643744] [2021-11-03 05:49:53,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:53,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:49:53,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:49:53,089 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:49:53,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:49:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:53,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:49:53,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:53,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:53,881 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:49:53,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474643744] [2021-11-03 05:49:53,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474643744] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:49:53,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:49:53,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:49:53,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147424544] [2021-11-03 05:49:53,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:49:53,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:49:53,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:49:53,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:49:53,883 INFO L87 Difference]: Start difference. First operand 26425 states and 42264 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:49:56,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:49:56,130 INFO L93 Difference]: Finished difference Result 78799 states and 125978 transitions. [2021-11-03 05:49:56,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:49:56,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-03 05:49:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:49:56,198 INFO L225 Difference]: With dead ends: 78799 [2021-11-03 05:49:56,199 INFO L226 Difference]: Without dead ends: 52503 [2021-11-03 05:49:56,224 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:49:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52503 states. [2021-11-03 05:49:57,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52503 to 26902. [2021-11-03 05:49:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26902 states, 26774 states have (on average 1.6114140584148802) internal successors, (43144), 26901 states have internal predecessors, (43144), 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) [2021-11-03 05:49:57,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26902 states to 26902 states and 43144 transitions. [2021-11-03 05:49:57,708 INFO L78 Accepts]: Start accepts. Automaton has 26902 states and 43144 transitions. Word has length 80 [2021-11-03 05:49:57,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:49:57,708 INFO L470 AbstractCegarLoop]: Abstraction has 26902 states and 43144 transitions. [2021-11-03 05:49:57,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:49:57,708 INFO L276 IsEmpty]: Start isEmpty. Operand 26902 states and 43144 transitions. [2021-11-03 05:49:57,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 05:49:57,713 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:49:57,713 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:49:57,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:57,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:49:57,930 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 05:49:57,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:49:57,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1023735877, now seen corresponding path program 1 times [2021-11-03 05:49:57,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:49:57,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769978100] [2021-11-03 05:49:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:57,932 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:49:57,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:49:57,933 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:49:57,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:49:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:58,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:49:58,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:58,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:58,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:58,796 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:49:58,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769978100] [2021-11-03 05:49:58,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769978100] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:49:58,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:49:58,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:49:58,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220015050] [2021-11-03 05:49:58,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:49:58,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:49:58,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:49:58,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:49:58,798 INFO L87 Difference]: Start difference. First operand 26902 states and 43144 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2021-11-03 05:50:01,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:50:01,233 INFO L93 Difference]: Finished difference Result 80207 states and 128581 transitions. [2021-11-03 05:50:01,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:50:01,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2021-11-03 05:50:01,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:50:01,303 INFO L225 Difference]: With dead ends: 80207 [2021-11-03 05:50:01,303 INFO L226 Difference]: Without dead ends: 53443 [2021-11-03 05:50:01,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:50:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53443 states. [2021-11-03 05:50:02,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53443 to 27842. [2021-11-03 05:50:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27842 states, 27714 states have (on average 1.6193620552789203) internal successors, (44879), 27841 states have internal predecessors, (44879), 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) [2021-11-03 05:50:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27842 states to 27842 states and 44879 transitions. [2021-11-03 05:50:02,955 INFO L78 Accepts]: Start accepts. Automaton has 27842 states and 44879 transitions. Word has length 81 [2021-11-03 05:50:02,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:50:02,956 INFO L470 AbstractCegarLoop]: Abstraction has 27842 states and 44879 transitions. [2021-11-03 05:50:02,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2021-11-03 05:50:02,956 INFO L276 IsEmpty]: Start isEmpty. Operand 27842 states and 44879 transitions. [2021-11-03 05:50:02,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 05:50:02,962 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:50:02,962 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:50:02,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:50:03,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:50:03,164 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-03 05:50:03,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:50:03,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1663569572, now seen corresponding path program 1 times [2021-11-03 05:50:03,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:50:03,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729350984] [2021-11-03 05:50:03,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:50:03,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:50:03,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:50:03,166 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:50:03,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9940ed35-622b-443c-9fdf-8549a19616f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:50:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:50:03,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:50:03,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:50:03,893 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:50:03,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:50:04,093 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:50:04,093 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:50:04,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729350984] [2021-11-03 05:50:04,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729350984] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:50:04,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:50:04,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:50:04,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013467861] [2021-11-03 05:50:04,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:50:04,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:50:04,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:50:04,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:50:04,096 INFO L87 Difference]: Start difference. First operand 27842 states and 44879 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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)